Added the project.

2024-12-22 06:28:27 +01:00 · 2016-11-01 13:25:56 +01:00 · 2016-11-01 13:25:56 +01:00 · 947b6de3a5
commit 947b6de3a5
parent 93760b331c
137 changed files with 33276 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,4 @@
+/Library
+/Temp
+*.sln
+*.csproj
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--- a/Assets/AreaLight/Scripts/AreaLight.Direct.cs
+++ b/Assets/AreaLight/Scripts/AreaLight.Direct.cs
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+using UnityEngine;
+using UnityEngine.Rendering;
+using System.Collections.Generic;
+
+public partial class AreaLight : MonoBehaviour
+{
+	[HideInInspector]
+	public Mesh m_Cube;
+	[HideInInspector]
+	public Shader m_ProxyShader;
+	Material m_ProxyMaterial;
+	static Texture2D s_TransformInvTexture_Specular;
+	static Texture2D s_TransformInvTexture_Diffuse;
+	static Texture2D s_AmpDiffAmpSpecFresnel;
+
+	Dictionary<Camera, CommandBuffer> m_Cameras = new Dictionary<Camera, CommandBuffer>();
+	static CameraEvent kCameraEvent = CameraEvent.AfterLighting;
+
+	bool InitDirect()
+	{
+		if (m_ProxyShader == null || m_Cube  == null)
+			return false;
+
+		// Proxy
+		m_ProxyMaterial = new Material(m_ProxyShader);
+		m_ProxyMaterial.hideFlags = HideFlags.HideAndDontSave;
+
+		return true;
+	}
+
+	void SetUpLUTs()
+	{
+		if (s_TransformInvTexture_Diffuse == null)
+			s_TransformInvTexture_Diffuse = AreaLightLUT.LoadLUT(AreaLightLUT.LUTType.TransformInv_DisneyDiffuse);
+		if (s_TransformInvTexture_Specular == null)
+			s_TransformInvTexture_Specular = AreaLightLUT.LoadLUT(AreaLightLUT.LUTType.TransformInv_GGX);
+		if (s_AmpDiffAmpSpecFresnel == null)
+			s_AmpDiffAmpSpecFresnel = AreaLightLUT.LoadLUT(AreaLightLUT.LUTType.AmpDiffAmpSpecFresnel);
+
+		m_ProxyMaterial.SetTexture("_TransformInv_Diffuse", s_TransformInvTexture_Diffuse);
+		m_ProxyMaterial.SetTexture("_TransformInv_Specular", s_TransformInvTexture_Specular);
+		m_ProxyMaterial.SetTexture("_AmpDiffAmpSpecFresnel", s_AmpDiffAmpSpecFresnel);
+	}
+
+	void Cleanup()
+	{
+		for(var e = m_Cameras.GetEnumerator(); e.MoveNext();)
+		{
+			var cam = e.Current;
+			if (cam.Key != null && cam.Value != null)
+			{
+				cam.Key.RemoveCommandBuffer (kCameraEvent, cam.Value);
+			}
+		}
+		m_Cameras.Clear();
+	}
+
+	static readonly float[,] offsets = new float[4,2] {{1, 1}, {1, -1}, {-1, -1}, {-1, 1}};
+
+	CommandBuffer GetOrCreateCommandBuffer(Camera cam)
+	{
+		if(cam == null)
+			return null;
+
+		CommandBuffer buf = null;
+		if(!m_Cameras.ContainsKey(cam)) {
+			buf = new CommandBuffer();
+			buf.name = /*"Area light: " +*/ gameObject.name;
+			m_Cameras[cam] = buf;
+			cam.AddCommandBuffer(kCameraEvent, buf);
+			cam.depthTextureMode |= DepthTextureMode.Depth;
+		} else {
+			buf = m_Cameras[cam];
+			buf.Clear();
+		}
+
+		return buf;
+	}
+
+	public void SetUpCommandBuffer()
+	{
+		if (InsideShadowmapCameraRender())
+			return;
+
+		Camera cam = Camera.current;
+		CommandBuffer buf = GetOrCreateCommandBuffer(cam);
+
+		buf.SetGlobalVector("_LightPos", transform.position);
+		buf.SetGlobalVector("_LightColor", GetColor());
+		SetUpLUTs();
+
+		// Needed as we're using the vert_deferred vertex shader from UnityDeferredLibrary.cginc
+		// TODO: Make the light render as quad if it intersects both near and far plane.
+		// (Also missing: rendering as front faces when near doesn't intersect, stencil optimisations)
+		buf.SetGlobalFloat("_LightAsQuad", 0);
+		
+		// A little bit of bias to prevent the light from lighting itself - the source quad
+		float z = 0.01f;
+		Transform t = transform;
+
+		Matrix4x4 lightVerts = new Matrix4x4();
+		for (int i = 0; i < 4; i++)
+			lightVerts.SetRow(i, t.TransformPoint(new Vector3(m_Size.x * offsets[i,0], m_Size.y * offsets[i,1], z) * 0.5f));
+		buf.SetGlobalMatrix("_LightVerts", lightVerts);
+
+		if (m_Shadows)
+			SetUpShadowmapForSampling(buf);
+
+		Matrix4x4 m = Matrix4x4.TRS(new Vector3(0, 0, 10.0f), Quaternion.identity, Vector3.one * 20);
+		buf.DrawMesh(m_Cube, t.localToWorldMatrix * m, m_ProxyMaterial, 0, m_Shadows ? /*shadows*/ 0 : /*no shadows*/ 1);
+	}
+
+	void SetKeyword(string keyword, bool on)
+	{
+		if (on)
+			m_ProxyMaterial.EnableKeyword(keyword);
+		else
+			m_ProxyMaterial.DisableKeyword(keyword);
+	}
+
+	void ReleaseTemporary(ref RenderTexture rt)
+	{
+		if (rt == null)
+			return;
+
+		RenderTexture.ReleaseTemporary(rt);
+		rt = null;
+	}
+
+	Color GetColor()
+	{
+		if (QualitySettings.activeColorSpace == ColorSpace.Gamma)
+			return m_Color * m_Intensity;
+
+		return new Color(
+			Mathf.GammaToLinearSpace(m_Color.r * m_Intensity),
+			Mathf.GammaToLinearSpace(m_Color.g * m_Intensity),
+			Mathf.GammaToLinearSpace(m_Color.b * m_Intensity),
+			1.0f
+		);
+	}
+
+}
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--- a/Assets/AreaLight/Scripts/AreaLight.Shadow.cs
+++ b/Assets/AreaLight/Scripts/AreaLight.Shadow.cs
@ -0,0 +1,303 @@
+using UnityEngine;
+using UnityEngine.Rendering;
+
+public partial class AreaLight : MonoBehaviour
+{
+	Camera m_ShadowmapCamera;
+	Transform m_ShadowmapCameraTransform;
+	
+	[HideInInspector]
+	public Shader m_ShadowmapShader;
+	[HideInInspector]
+	public Shader m_BlurShadowmapShader;
+	Material m_BlurShadowmapMaterial;
+	RenderTexture m_Shadowmap = null;
+	RenderTexture m_BlurredShadowmap = null;
+	Texture2D m_ShadowmapDummy = null;
+
+	int m_ShadowmapRenderTime = -1;
+	int m_BlurredShadowmapRenderTime = -1;
+	FogLight m_FogLight = null;
+
+	public enum TextureSize
+	{
+		x512 = 512,
+		x1024 = 1024,
+		x2048 = 2048,
+		x4096 = 4096,
+	}
+
+	void UpdateShadowmap(int res)
+	{
+		if (m_Shadowmap != null && m_ShadowmapRenderTime == Time.renderedFrameCount)
+			return;
+
+		// Create the camera
+		if (m_ShadowmapCamera == null)
+		{
+			if (m_ShadowmapShader == null)
+			{
+				Debug.LogError("AreaLight's shadowmap shader not assigned.", this);
+				return;
+			}
+
+			GameObject go = new GameObject("Shadowmap Camera");
+			go.AddComponent(typeof(Camera));
+			m_ShadowmapCamera = go.GetComponent<Camera>();
+			go.hideFlags = HideFlags.HideAndDontSave;
+			m_ShadowmapCamera.enabled = false;
+			m_ShadowmapCamera.clearFlags = CameraClearFlags.SolidColor;
+			m_ShadowmapCamera.renderingPath = RenderingPath.Forward;
+			// exp(EXPONENT) for ESM, white for VSM
+			// m_ShadowmapCamera.backgroundColor = new Color(Mathf.Exp(EXPONENT), 0, 0, 0);
+			m_ShadowmapCamera.backgroundColor = Color.white;
+			m_ShadowmapCameraTransform = go.transform;
+			m_ShadowmapCameraTransform.parent = transform;
+			m_ShadowmapCameraTransform.localRotation = Quaternion.identity;
+		}
+
+		if (m_Angle == 0.0f)
+		{
+			m_ShadowmapCamera.orthographic = true;
+			m_ShadowmapCameraTransform.localPosition = Vector3.zero;
+			m_ShadowmapCamera.nearClipPlane = 0;
+			m_ShadowmapCamera.farClipPlane = m_Size.z;
+			m_ShadowmapCamera.orthographicSize = 0.5f * m_Size.y;
+			m_ShadowmapCamera.aspect = m_Size.x / m_Size.y;
+		}
+		else
+		{
+			m_ShadowmapCamera.orthographic = false;
+			float near = GetNearToCenter();
+			m_ShadowmapCameraTransform.localPosition = -near * Vector3.forward;
+			m_ShadowmapCamera.nearClipPlane = near;
+			m_ShadowmapCamera.farClipPlane = near + m_Size.z;
+			m_ShadowmapCamera.fieldOfView = m_Angle;
+			m_ShadowmapCamera.aspect = m_Size.x / m_Size.y;
+		}
+
+		ReleaseTemporary(ref m_Shadowmap);
+		m_Shadowmap = RenderTexture.GetTemporary(res, res, 24, RenderTextureFormat.Shadowmap);
+		m_Shadowmap.name = "AreaLight Shadowmap";
+		m_Shadowmap.filterMode = FilterMode.Bilinear;
+		m_Shadowmap.wrapMode = TextureWrapMode.Clamp;
+
+		m_ShadowmapCamera.targetTexture = m_Shadowmap;
+
+		// Clear. RenderWithShader() should clear too, but it doesn't.
+		// TODO: Check if it's a bug.
+		m_ShadowmapCamera.cullingMask = 0;
+		m_ShadowmapCamera.Render();
+		m_ShadowmapCamera.cullingMask = m_ShadowCullingMask;
+
+		// We might be rendering inside PlaneReflections, which invert culling. Disable temporarily.
+		var oldCulling = GL.invertCulling;
+		GL.invertCulling = false;
+
+		m_ShadowmapCamera.RenderWithShader(m_ShadowmapShader, "RenderType");
+
+		// Back to whatever was the culling mode.
+		GL.invertCulling = oldCulling;
+
+		m_ShadowmapRenderTime = Time.renderedFrameCount;
+	}
+
+	public RenderTexture GetBlurredShadowmap()
+	{
+		UpdateBlurredShadowmap();
+		return m_BlurredShadowmap;
+	}
+
+	RenderTexture[] temp;
+
+	void UpdateBlurredShadowmap()
+	{
+		if (m_BlurredShadowmap != null && m_BlurredShadowmapRenderTime == Time.renderedFrameCount)
+			return;
+
+		InitFogLight();
+
+		int startRes = (int)m_ShadowmapRes;
+		int targetRes = (int)m_FogLight.m_ShadowmapRes;
+
+		// To make things easier, blurred shadowmap is at most half the size of the regular.
+		if (isActiveAndEnabled && m_Shadows)
+		{
+			targetRes = Mathf.Min(targetRes, startRes/2);
+		}
+		else
+		{
+			// If the area light or the shadows on it are disabled, we can
+			// just get the most convenient resolution for us.
+			startRes = 2 * startRes;
+		}
+
+		UpdateShadowmap(startRes);
+
+		RenderTexture originalRT = RenderTexture.active;
+
+		// Downsample
+		ReleaseTemporary(ref m_BlurredShadowmap);
+		InitMaterial(ref m_BlurShadowmapMaterial, m_BlurShadowmapShader);
+		int downsampleSteps = (int)Mathf.Log(startRes / targetRes, 2);
+		if (temp == null || temp.Length != downsampleSteps)
+			temp = new RenderTexture[downsampleSteps];
+		// RFloat for ESM, RGHalf for VSM
+		RenderTextureFormat format = RenderTextureFormat.RGHalf;
+
+		for(int i = 0, currentRes = startRes/2; i < downsampleSteps; i++)
+		{
+			temp[i] = RenderTexture.GetTemporary(currentRes, currentRes, 0, format, RenderTextureReadWrite.Linear);
+			temp[i].name = "AreaLight Shadow Downsample";
+			temp[i].filterMode = FilterMode.Bilinear;
+			temp[i].wrapMode = TextureWrapMode.Clamp;
+			m_BlurShadowmapMaterial.SetVector("_TexelSize", new Vector4(0.5f/currentRes, 0.5f/currentRes, 0, 0));
+
+			if (i == 0)
+			{
+				m_BlurShadowmapMaterial.SetTexture("_Shadowmap", m_Shadowmap);
+				InitShadowmapDummy();
+				m_BlurShadowmapMaterial.SetTexture("_ShadowmapDummy", m_ShadowmapDummy);
+				m_BlurShadowmapMaterial.SetVector("_ZParams", GetZParams());
+				m_BlurShadowmapMaterial.SetFloat("_ESMExponent", m_FogLight.m_ESMExponent);
+				Blur(m_Shadowmap, temp[i], /*sample & convert shadowmap*/ 0);
+			}
+			else
+			{
+				m_BlurShadowmapMaterial.SetTexture("_MainTex", temp[i - 1]);
+				Blur(temp[i - 1], temp[i], /*regular sample*/ 1);
+			}
+
+			currentRes /= 2;
+		}
+
+		for (int i = 0; i < downsampleSteps - 1; i++)
+			RenderTexture.ReleaseTemporary(temp[i]);
+
+		m_BlurredShadowmap = temp[downsampleSteps - 1];
+
+		// Blur
+		if (m_FogLight.m_BlurIterations > 0)
+		{
+			RenderTexture tempBlur = RenderTexture.GetTemporary (targetRes, targetRes, 0, format, RenderTextureReadWrite.Linear);
+			tempBlur.name = "AreaLight Shadow Blur";
+			tempBlur.filterMode = FilterMode.Bilinear;
+			tempBlur.wrapMode = TextureWrapMode.Clamp;
+
+			m_BlurShadowmapMaterial.SetVector("_MainTex_TexelSize", new Vector4(1.0f/targetRes, 1.0f/targetRes, 0, 0));
+
+			float blurSize = m_FogLight.m_BlurSize;
+			for(int i = 0; i < m_FogLight.m_BlurIterations; i++)
+			{
+				m_BlurShadowmapMaterial.SetFloat ("_BlurSize", blurSize);
+				Blur(m_BlurredShadowmap, tempBlur,   /*vertical blur*/2);
+				Blur(tempBlur, m_BlurredShadowmap, /*horizontal blur*/3);
+				blurSize *= 1.2f;
+			}
+
+			RenderTexture.ReleaseTemporary(tempBlur);
+		}
+
+		RenderTexture.active = originalRT;
+
+		m_BlurredShadowmapRenderTime = Time.renderedFrameCount;
+	}
+
+	// Normally would've used Graphics.Blit(), but it breaks picking in the scene view.
+	// TODO: bug report
+	void Blur(RenderTexture src, RenderTexture dst, int pass)
+	{
+		RenderTexture.active = dst;
+		m_BlurShadowmapMaterial.SetTexture("_MainTex", src);
+		m_BlurShadowmapMaterial.SetPass(pass);
+		RenderQuad();
+	}
+
+	void RenderQuad()
+	{
+		GL.Begin(GL.QUADS);
+		GL.TexCoord2( 0, 0);
+		GL.Vertex3	(-1, 1, 0);
+		GL.TexCoord2( 0, 1);
+		GL.Vertex3	(-1,-1, 0);
+		GL.TexCoord2( 1, 1);
+		GL.Vertex3	( 1,-1, 0);
+		GL.TexCoord2( 1, 0);
+		GL.Vertex3	( 1, 1, 0);
+		GL.End();
+	}
+
+	void SetUpShadowmapForSampling(CommandBuffer buf)
+	{
+		UpdateShadowmap((int)m_ShadowmapRes);
+		
+		buf.SetGlobalTexture("_Shadowmap", m_Shadowmap);
+		InitShadowmapDummy();
+		m_ProxyMaterial.SetTexture("_ShadowmapDummy", m_ShadowmapDummy);
+		buf.SetGlobalMatrix("_ShadowProjectionMatrix", GetProjectionMatrix());
+
+		float texelsInMap = (int)m_ShadowmapRes;
+		float relativeTexelSize = texelsInMap / 2048.0f;
+
+		buf.SetGlobalFloat("_ShadowReceiverWidth", relativeTexelSize * m_ReceiverSearchDistance / texelsInMap);
+
+		buf.SetGlobalFloat("_ShadowReceiverDistanceScale", m_ReceiverDistanceScale * 0.5f / 10.0f); // 10 samples in shader
+		
+		Vector2 shadowLightWidth = new Vector2(m_LightNearSize, m_LightFarSize) * relativeTexelSize / texelsInMap;
+		buf.SetGlobalVector("_ShadowLightWidth", shadowLightWidth);
+
+		buf.SetGlobalFloat("_ShadowBias", m_ShadowBias);
+	}
+
+	void InitMaterial(ref Material material, Shader shader)
+	{
+		if (material)
+			return;
+
+		if (!shader)
+		{
+			Debug.LogError("Missing shader");
+			return;
+		}
+
+		material = new Material(shader);
+		material.hideFlags = HideFlags.HideAndDontSave;
+	}
+
+	void InitShadowmapDummy()
+	{
+		if(m_ShadowmapDummy != null)
+			return;
+		m_ShadowmapDummy = new Texture2D(1, 1, TextureFormat.Alpha8, false, true);
+		m_ShadowmapDummy.filterMode = FilterMode.Point;
+		m_ShadowmapDummy.SetPixel(0, 0, new Color(0f, 0f, 0f, 0f));
+		m_ShadowmapDummy.Apply(false, true);
+	}
+
+	void InitFogLight()
+	{
+		if (m_FogLight != null)
+			return;
+
+		// It should always be here, because it triggered this code path in the first place.
+		m_FogLight = GetComponent<FogLight>();
+	}
+
+	bool InsideShadowmapCameraRender()
+	{
+		RenderTexture target = Camera.current.targetTexture;
+		return target != null && target.format == RenderTextureFormat.Shadowmap;
+	}
+
+	Vector4 GetZParams()
+	{
+		float n = GetNearToCenter();
+		float f = n + m_Size.z;
+		// linear z, 0 near, 1 far
+		// linearz = A * (z + 1.0) / (z + B);
+		// A = n/(n - f)
+		// B = (n + f)/(n - f)
+
+		return new Vector4(n/(n - f), (n + f)/(n - f), 0, 0);
+	}
+}
--- a/Assets/AreaLight/Scripts/AreaLight.Shadow.cs.meta
+++ b/Assets/AreaLight/Scripts/AreaLight.Shadow.cs.meta
@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 263b59280b7c4e04aa70d3c9cb1a5586
+timeCreated: 1455014110
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/AreaLight/Scripts/AreaLight.cs
+++ b/Assets/AreaLight/Scripts/AreaLight.cs
@ -0,0 +1,297 @@
+using UnityEngine;
+
+[ExecuteInEditMode]
+public partial class AreaLight : MonoBehaviour
+{
+	public bool m_RenderSource = true;
+	public Vector3 m_Size = new Vector3(1, 1, 2);
+	[Range(0, 179)]
+	public float m_Angle = 0.0f;
+	[MinValue(0)]
+	public float m_Intensity = 0.8f;
+	public Color m_Color = Color.white;
+
+	[Header("Shadows")]
+	public bool m_Shadows = false;
+	public LayerMask m_ShadowCullingMask = ~0;
+	public TextureSize m_ShadowmapRes = TextureSize.x2048;
+	[MinValue(0)]
+	public float m_ReceiverSearchDistance = 24.0f;
+	[MinValue(0)]
+	public float m_ReceiverDistanceScale = 5.0f;
+	[MinValue(0)]
+	public float m_LightNearSize = 4.0f;
+	[MinValue(0)]
+	public float m_LightFarSize = 22.0f;
+	[Range(0, 0.1f)]
+	public float m_ShadowBias = 0.001f;
+
+	MeshRenderer m_SourceRenderer;
+	Mesh m_SourceMesh;
+	[HideInInspector]
+	public Mesh m_Quad;
+	Vector2 m_CurrentQuadSize = Vector2.zero;
+	Vector3 m_CurrentSize = Vector3.zero;
+	float m_CurrentAngle = -1.0f;
+
+	bool m_Initialized = false;
+	MaterialPropertyBlock m_props;
+
+	void Awake()
+	{
+		if(!Init())
+			return;
+		UpdateSourceMesh();
+	}
+
+	bool Init()
+	{
+		if (m_Initialized)
+			return true;
+
+		if (m_Quad == null || !InitDirect())
+			return false;
+
+		m_SourceRenderer = GetComponent<MeshRenderer>();
+		m_SourceRenderer.enabled = true;
+		m_SourceMesh = Instantiate<Mesh>(m_Quad);
+		m_SourceMesh.hideFlags = HideFlags.HideAndDontSave;
+		MeshFilter mfs = gameObject.GetComponent<MeshFilter>();
+		mfs.sharedMesh = m_SourceMesh;
+
+		Transform t = transform;
+		if (t.localScale != Vector3.one)
+		{
+#if UNITY_EDITOR
+			Debug.LogError("AreaLights don't like to be scaled. Setting local scale to 1.", this);
+#endif
+			t.localScale = Vector3.one;
+		}
+
+		SetUpLUTs();
+
+		m_Initialized = true;
+		return true;
+	}
+
+	void OnEnable()
+	{
+		m_props = new MaterialPropertyBlock();
+
+		if(!Init())
+			return;
+		UpdateSourceMesh();
+	}
+
+	void OnDisable()
+	{
+		if(!Application.isPlaying)
+			Cleanup();
+		else
+			for(var e = m_Cameras.GetEnumerator(); e.MoveNext();)
+				if(e.Current.Value != null)
+					e.Current.Value.Clear();
+	}
+
+	void OnDestroy()
+	{
+		if (m_ProxyMaterial != null)
+			DestroyImmediate(m_ProxyMaterial);
+		if (m_SourceMesh != null)
+			DestroyImmediate(m_SourceMesh);
+		Cleanup();
+	}
+
+	static Vector3[] vertices = new Vector3[4];
+
+	void UpdateSourceMesh()
+	{
+		m_Size.x = Mathf.Max(m_Size.x, 0);
+		m_Size.y = Mathf.Max(m_Size.y, 0);
+		m_Size.z = Mathf.Max(m_Size.z, 0);
+
+		Vector2 quadSize = m_RenderSource && enabled ? new Vector2(m_Size.x, m_Size.y) : Vector2.one * 0.0001f;
+		if (quadSize != m_CurrentQuadSize)
+		{
+
+			float x = quadSize.x * 0.5f;
+			float y = quadSize.y * 0.5f;
+			// To prevent the source quad from getting into the shadowmap, offset it back a bit.
+			float z = -0.001f;
+			vertices[0].Set(-x,  y, z);
+			vertices[1].Set( x, -y, z);
+			vertices[2].Set( x,  y, z);
+			vertices[3].Set(-x, -y, z);
+
+			m_SourceMesh.vertices = vertices;
+
+			m_CurrentQuadSize = quadSize;
+		}
+
+		if (m_Size != m_CurrentSize || m_Angle != m_CurrentAngle)
+		{
+			// Set the bounds of the mesh to large, so that they drive rendering of the entire light
+			// TODO: Make the bounds tight around the shape of the light. Right now they're just tight around
+			// the shadow frustum, which is fine if the shadows are enable (ok, maybe far plane should be more clever),
+			// but doesn't make sense if shadows are disabled.
+			m_SourceMesh.bounds = GetFrustumBounds();
+		}
+	}
+
+	void Update()
+	{
+		if (!gameObject.activeInHierarchy || !enabled)
+		{
+			Cleanup();
+			return;
+		}
+
+		if(!Init())
+			return;
+
+		UpdateSourceMesh();
+
+		if(Application.isPlaying)
+			for(var e = m_Cameras.GetEnumerator(); e.MoveNext();)
+				if(e.Current.Value != null)
+					e.Current.Value.Clear();
+	}
+
+	void OnWillRenderObject()
+	{
+		if(!Init())
+			return;
+
+		// TODO: This is just a very rough guess. Need to properly calculate the surface emission
+		// intensity based on light's intensity.
+		Color color = new Color(
+			Mathf.GammaToLinearSpace(m_Color.r),
+			Mathf.GammaToLinearSpace(m_Color.g),
+			Mathf.GammaToLinearSpace(m_Color.b),
+			1.0f);
+		m_props.SetVector("_EmissionColor", color * m_Intensity);
+		m_SourceRenderer.SetPropertyBlock(m_props);
+
+		SetUpCommandBuffer();
+	}
+
+	float GetNearToCenter()
+	{
+		if (m_Angle == 0.0f)
+			return 0;
+
+		return m_Size.y * 0.5f / Mathf.Tan(m_Angle * 0.5f * Mathf.Deg2Rad);
+	}
+
+	Matrix4x4 GetOffsetMatrix(float zOffset)
+	{
+		Matrix4x4 m = Matrix4x4.identity;
+		m.SetColumn(3, new Vector4(0, 0, zOffset, 1));
+		return m;
+	}
+
+	public Matrix4x4 GetProjectionMatrix(bool linearZ = false)
+	{
+		Matrix4x4 m;
+
+		if (m_Angle == 0.0f)
+		{
+			m = Matrix4x4.Ortho(-0.5f * m_Size.x, 0.5f * m_Size.x, -0.5f * m_Size.y, 0.5f * m_Size.y, 0, -m_Size.z);
+		}
+		else
+		{
+			float near = GetNearToCenter();
+			if (linearZ)
+			{
+				m = PerspectiveLinearZ(m_Angle, m_Size.x/m_Size.y, near, near + m_Size.z);
+			}
+			else
+			{
+				m = Matrix4x4.Perspective(m_Angle, m_Size.x/m_Size.y, near, near + m_Size.z);
+				m = m * Matrix4x4.Scale(new Vector3(1, 1, -1));
+			}
+			m = m * GetOffsetMatrix(near);
+		}
+		
+		return m * transform.worldToLocalMatrix;
+	}
+
+	public Vector4 MultiplyPoint(Matrix4x4 m, Vector3 v)
+	{
+		Vector4 res;
+		res.x = m.m00 * v.x + m.m01 * v.y + m.m02 * v.z + m.m03;
+		res.y = m.m10 * v.x + m.m11 * v.y + m.m12 * v.z + m.m13;
+		res.z = m.m20 * v.x + m.m21 * v.y + m.m22 * v.z + m.m23;
+		res.w = m.m30 * v.x + m.m31 * v.y + m.m32 * v.z + m.m33;
+		return res;
+	}
+
+	Matrix4x4 PerspectiveLinearZ(float fov, float aspect, float near, float far)
+	{
+		// A vector transformed with this matrix should get perspective division on x and y only:
+		// Vector4 vClip = MultiplyPoint(PerspectiveLinearZ(...), vEye);
+		// Vector3 vNDC = Vector3(vClip.x / vClip.w, vClip.y / vClip.w, vClip.z);
+		// vNDC is [-1, 1]^3 and z is linear, i.e. z = 0 is half way between near and far in world space.
+
+		float rad = Mathf.Deg2Rad * fov * 0.5f;
+		float cotan = Mathf.Cos(rad) / Mathf.Sin(rad);
+		float deltainv = 1.0f / (far - near);
+		Matrix4x4 m;
+
+		m.m00 = cotan / aspect;	m.m01 = 0.0f;	m.m02 = 0.0f;			 m.m03 = 0.0f;
+		m.m10 = 0.0f;			m.m11 = cotan; 	m.m12 = 0.0f;			 m.m13 = 0.0f;
+		m.m20 = 0.0f;			m.m21 = 0.0f;	m.m22 = 2.0f * deltainv; m.m23 = - (far + near) * deltainv;
+		m.m30 = 0.0f;			m.m31 = 0.0f;	m.m32 = 1.0f;			 m.m33 = 0.0f;
+
+		return m;
+	}
+
+	public Vector4 GetPosition()
+	{
+		Transform t = transform;
+
+		if (m_Angle == 0.0f)
+		{
+			Vector3 dir = -t.forward;
+			return new Vector4(dir.x, dir.y, dir.z, 0);
+		}
+
+		Vector3 pos = t.position - GetNearToCenter() * t.forward;
+		return new Vector4(pos.x, pos.y, pos.z, 1);
+	}
+
+	Bounds GetFrustumBounds()
+	{
+		if (m_Angle == 0.0f)
+			return new Bounds(Vector3.zero, m_Size);
+
+		float tanhalffov = Mathf.Tan(m_Angle * 0.5f * Mathf.Deg2Rad);
+		float near = m_Size.y * 0.5f / tanhalffov;
+		float z = m_Size.z;
+		float y = (near + m_Size.z) * tanhalffov * 2.0f;
+		float x = m_Size.x * y / m_Size.y;
+		return new Bounds(Vector3.forward * m_Size.z * 0.5f, new Vector3(x, y, z));
+	}
+
+	void OnDrawGizmosSelected()
+	{
+		Gizmos.color = Color.white;
+
+		if (m_Angle == 0.0f)
+		{
+			Gizmos.matrix = transform.localToWorldMatrix;
+			Gizmos.DrawWireCube(new Vector3(0, 0, 0.5f * m_Size.z), m_Size);
+			return;
+		}
+
+		float near = GetNearToCenter();
+		Gizmos.matrix = transform.localToWorldMatrix * GetOffsetMatrix(-near);
+
+		Gizmos.DrawFrustum(Vector3.zero, m_Angle, near + m_Size.z, near, m_Size.x/m_Size.y);
+
+		Gizmos.matrix = transform.localToWorldMatrix;
+		Gizmos.color = Color.yellow;
+		Bounds bounds = GetFrustumBounds();
+		Gizmos.DrawWireCube(bounds.center, bounds.size);
+	}
+}
--- a/Assets/AreaLight/Scripts/AreaLight.cs.meta
+++ b/Assets/AreaLight/Scripts/AreaLight.cs.meta
@ -0,0 +1,16 @@
+fileFormatVersion: 2
+guid: 792909cacf2415c48a1d7eebef426b5d
+timeCreated: 1453121021
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences:
+  - m_Cube: {fileID: 10202, guid: 0000000000000000e000000000000000, type: 0}
+  - m_ProxyShader: {fileID: 4800000, guid: 2b28be3523d190a41910088d1ee68ef7, type: 3}
+  - m_Quad: {fileID: 10210, guid: 0000000000000000e000000000000000, type: 0}
+  - m_ShadowmapShader: {fileID: 4800000, guid: 2c4cd42b134f7864fa579350e9cf6896, type: 3}
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
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+  assetBundleVariant: 
--- a/Assets/AreaLight/Scripts/AreaLightLUT.DisneyDiffuse.cs
+++ b/Assets/AreaLight/Scripts/AreaLightLUT.DisneyDiffuse.cs
--- a/Assets/AreaLight/Scripts/AreaLightLUT.DisneyDiffuse.cs.meta
+++ b/Assets/AreaLight/Scripts/AreaLightLUT.DisneyDiffuse.cs.meta
@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 9cbf86f9b2114924a91acc43796a307b
+timeCreated: 1454419446
+licenseType: Pro
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+  serializedVersion: 2
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+  executionOrder: 0
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+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/AreaLight/Scripts/AreaLightLUT.GGX.cs
+++ b/Assets/AreaLight/Scripts/AreaLightLUT.GGX.cs
--- a/Assets/AreaLight/Scripts/AreaLightLUT.GGX.cs.meta
+++ b/Assets/AreaLight/Scripts/AreaLightLUT.GGX.cs.meta
@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 2b0041ac2ad0ef8459f7565f64f4d731
+timeCreated: 1453066169
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/AreaLight/Scripts/AreaLightLUT.Load.cs
+++ b/Assets/AreaLight/Scripts/AreaLightLUT.Load.cs
@ -0,0 +1,68 @@
+using UnityEngine;
+
+public partial class AreaLightLUT
+{
+	const int kLUTResolution = 64;
+	const int kLUTMatrixDim = 3;
+
+	public enum LUTType
+	{
+		TransformInv_DisneyDiffuse,
+		TransformInv_GGX,
+		AmpDiffAmpSpecFresnel
+	}
+
+	public static Texture2D LoadLUT(LUTType type)
+	{
+		switch(type)
+		{
+			case LUTType.TransformInv_DisneyDiffuse: return LoadLUT(s_LUTTransformInv_DisneyDiffuse);
+			case LUTType.TransformInv_GGX: return LoadLUT(s_LUTTransformInv_GGX);
+			case LUTType.AmpDiffAmpSpecFresnel: return LoadLUT(s_LUTAmplitude_DisneyDiffuse, s_LUTAmplitude_GGX, s_LUTFresnel_GGX);
+		}
+
+		return null;
+	}
+
+	static Texture2D CreateLUT(TextureFormat format, Color[] pixels)
+	{
+		Texture2D tex = new Texture2D(kLUTResolution, kLUTResolution, format, false /*mipmap*/, true /*linear*/);
+		tex.hideFlags = HideFlags.HideAndDontSave;
+		tex.wrapMode = TextureWrapMode.Clamp;
+		tex.SetPixels(pixels);
+		tex.Apply();
+		return tex;
+	}
+
+	static Texture2D LoadLUT(double[,] LUTTransformInv)
+	{
+		const int count = kLUTResolution * kLUTResolution;
+		Color[] pixels = new Color[count];
+		
+		// transformInv
+		for (int i = 0; i < count; i++)
+		{
+			// Only columns 0, 2, 4 and 6 contain interesting values (at least in the case of GGX).
+			pixels[i] = new Color(	(float)LUTTransformInv[i, 0],
+									(float)LUTTransformInv[i, 2],
+									(float)LUTTransformInv[i, 4],
+									(float)LUTTransformInv[i, 6]);
+		}
+
+		return CreateLUT(TextureFormat.RGBAHalf, pixels);
+	}
+
+	static Texture2D LoadLUT(float[] LUTScalar0, float[] LUTScalar1, float[] LUTScalar2)
+	{
+		const int count = kLUTResolution * kLUTResolution;
+		Color[] pixels = new Color[count];
+
+		// amplitude
+		for (int i = 0; i < count; i++)
+		{
+			pixels[i] = new Color(LUTScalar0[i], LUTScalar1[i], LUTScalar2[i], 0);
+		}
+
+		return CreateLUT(TextureFormat.RGBAHalf, pixels);
+	}
+}
--- a/Assets/AreaLight/Scripts/AreaLightLUT.Load.cs.meta
+++ b/Assets/AreaLight/Scripts/AreaLightLUT.Load.cs.meta
@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 0c08d6c4951e30c42a4bd6209323dfb8
+timeCreated: 1453070529
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/AreaLight/Shaders.meta
+++ b/Assets/AreaLight/Shaders.meta
@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: d622c47de56b9e84e971b5a72b861f95
+folderAsset: yes
+timeCreated: 1477749207
+licenseType: Pro
+DefaultImporter:
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/AreaLight/Shaders/AreaLight.cginc
+++ b/Assets/AreaLight/Shaders/AreaLight.cginc
@ -0,0 +1,224 @@
+// Based on 'Real-Time Polygonal-Light Shading with Linearly Transformed Cosines'
+// https://labs.unity.com/article/real-time-polygonal-light-shading-linearly-transformed-cosines
+
+#if AREA_LIGHT_ENABLE_DIFFUSE
+sampler2D _TransformInv_Diffuse;
+#endif
+sampler2D _TransformInv_Specular;
+sampler2D _AmpDiffAmpSpecFresnel;
+float4x4 _LightVerts;
+
+half IntegrateEdge(half3 v1, half3 v2)
+{
+	half d = dot(v1,v2);
+	half theta = acos(max(-0.9999, dot(v1,v2)));
+	half theta_sintheta = theta / sin(theta);
+	return theta_sintheta * (v1.x*v2.y - v1.y*v2.x);
+}
+
+// Baum's equation
+// Expects non-normalized vertex positions
+half PolygonRadiance(half4x3 L)
+{
+	// detect clipping config	
+	uint config = 0;
+	if (L[0].z > 0) config += 1;
+	if (L[1].z > 0) config += 2;
+	if (L[2].z > 0) config += 4;
+	if (L[3].z > 0) config += 8;
+
+
+	// The fifth vertex for cases when clipping cuts off one corner.
+	// Due to a compiler bug, copying L into a vector array with 5 rows
+	// messes something up, so we need to stick with the matrix + the L4 vertex.
+	half3 L4 = L[3];
+
+	// This switch is surprisingly fast. Tried replacing it with a lookup array of vertices.
+	// Even though that replaced the switch with just some indexing and no branches, it became
+	// way, way slower - mem fetch stalls?
+
+	// clip
+	uint n = 0;
+	switch(config)
+	{
+		case 0: // clip all
+			break;
+			
+		case 1: // V1 clip V2 V3 V4
+			n = 3;
+			L[1] = -L[1].z * L[0] + L[0].z * L[1];
+			L[2] = -L[3].z * L[0] + L[0].z * L[3];
+			break;
+			
+		case 2: // V2 clip V1 V3 V4
+			n = 3;
+			L[0] = -L[0].z * L[1] + L[1].z * L[0];
+			L[2] = -L[2].z * L[1] + L[1].z * L[2];
+			break;
+			
+		case 3: // V1 V2 clip V3 V4
+			n = 4;
+			L[2] = -L[2].z * L[1] + L[1].z * L[2];
+			L[3] = -L[3].z * L[0] + L[0].z * L[3];
+			break;
+			
+		case 4: // V3 clip V1 V2 V4
+			n = 3;	
+			L[0] = -L[3].z * L[2] + L[2].z * L[3];
+			L[1] = -L[1].z * L[2] + L[2].z * L[1];				
+			break;
+			
+		case 5: // V1 V3 clip V2 V4: impossible
+			break;
+			
+		case 6: // V2 V3 clip V1 V4
+			n = 4;
+			L[0] = -L[0].z * L[1] + L[1].z * L[0];
+			L[3] = -L[3].z * L[2] + L[2].z * L[3];			
+			break;
+			
+		case 7: // V1 V2 V3 clip V4
+			n = 5;
+			L4 = -L[3].z * L[0] + L[0].z * L[3];
+			L[3] = -L[3].z * L[2] + L[2].z * L[3];
+			break;
+			
+		case 8: // V4 clip V1 V2 V3
+			n = 3;
+			L[0] = -L[0].z * L[3] + L[3].z * L[0];
+			L[1] = -L[2].z * L[3] + L[3].z * L[2];
+			L[2] =  L[3];
+			break;
+			
+		case 9: // V1 V4 clip V2 V3
+			n = 4;
+			L[1] = -L[1].z * L[0] + L[0].z * L[1];
+			L[2] = -L[2].z * L[3] + L[3].z * L[2];
+			break;
+			
+		case 10: // V2 V4 clip V1 V3: impossible
+			break;
+			
+		case 11: // V1 V2 V4 clip V3
+			n = 5;
+			L[3] = -L[2].z * L[3] + L[3].z * L[2];
+			L[2] = -L[2].z * L[1] + L[1].z * L[2];			
+			break;
+			
+		case 12: // V3 V4 clip V1 V2
+			n = 4;
+			L[1] = -L[1].z * L[2] + L[2].z * L[1];
+			L[0] = -L[0].z * L[3] + L[3].z * L[0];
+			break;
+			
+		case 13: // V1 V3 V4 clip V2
+			n = 5;
+			L[3] = L[2];
+			L[2] = -L[1].z * L[2] + L[2].z * L[1];
+			L[1] = -L[1].z * L[0] + L[0].z * L[1];
+			break;
+			
+		case 14: // V2 V3 V4 clip V1
+			n = 5;
+			L4 = -L[0].z * L[3] + L[3].z * L[0];
+			L[0] = -L[0].z * L[1] + L[1].z * L[0];
+			break;
+			
+		case 15: // V1 V2 V3 V4
+			n = 4;
+			break;
+	}
+
+	if (n == 0)
+		return 0;
+
+	// normalize
+	L[0] = normalize(L[0]);
+	L[1] = normalize(L[1]);
+	L[2] = normalize(L[2]);
+	if(n == 3)
+		L[3] = L[0];
+	else
+	{
+		L[3] = normalize(L[3]);
+		if (n == 4)
+			L4 = L[0];
+		else
+			L4 = normalize(L4);
+	}
+	
+	// integrate
+	half sum = 0;
+	sum += IntegrateEdge(L[0], L[1]);
+	sum += IntegrateEdge(L[1], L[2]);
+	sum += IntegrateEdge(L[2], L[3]);
+	if(n >= 4)	
+		sum += IntegrateEdge(L[3], L4);
+	if(n == 5)
+		sum += IntegrateEdge(L4, L[0]);
+	
+	sum *= 0.15915; // 1/2pi
+
+	return max(0, sum);
+}
+
+half TransformedPolygonRadiance(half4x3 L, half2 uv, sampler2D transformInv, half amplitude)
+{
+	// Get the inverse LTC matrix M
+	half3x3 Minv = 0;
+	Minv._m22 = 1;
+	Minv._m00_m02_m11_m20 = tex2D(transformInv, uv);
+			
+	// Transform light vertices into diffuse configuration
+	half4x3 LTransformed = mul(L, Minv);
+
+	// Polygon radiance in transformed configuration - specular
+	return PolygonRadiance(LTransformed) * amplitude;
+}
+
+half3 CalculateLight (half3 position, half3 diffColor, half3 specColor, half oneMinusRoughness, half3 N,
+	half3 lightPos, half3 lightColor)
+{
+#if AREA_LIGHT_SHADOWS
+	half shadow = Shadow(position);
+	if (shadow == 0.0)
+		return 0;
+#endif
+	// TODO: larger and smaller values cause artifacts - why?
+	oneMinusRoughness = clamp(oneMinusRoughness, 0.01, 0.93);
+	half roughness = 1 - oneMinusRoughness;
+	half3 V = normalize(_WorldSpaceCameraPos - position);
+
+	// Construct orthonormal basis around N, aligned with V
+	half3x3 basis;
+	basis[0] = normalize(V - N * dot(V, N));
+	basis[1] = normalize(cross(N, basis[0]));
+	basis[2] = N;
+		
+	// Transform light vertices into that space
+	half4x3 L;
+	L = _LightVerts - half4x3(position, position, position, position);
+	L = mul(L, transpose(basis));
+
+	// UVs for sampling the LUTs
+	half theta = acos(dot(V, N));
+	half2 uv = half2(roughness, theta/1.57);
+
+	half3 AmpDiffAmpSpecFresnel = tex2D(_AmpDiffAmpSpecFresnel, uv).rgb;
+
+	half3 result = 0;
+#if AREA_LIGHT_ENABLE_DIFFUSE
+	half diffuseTerm = TransformedPolygonRadiance(L, uv, _TransformInv_Diffuse, AmpDiffAmpSpecFresnel.x);
+	result = diffuseTerm * diffColor;
+#endif
+
+	half specularTerm = TransformedPolygonRadiance(L, uv, _TransformInv_Specular, AmpDiffAmpSpecFresnel.y);
+	half fresnelTerm = specColor + (1.0 - specColor) * AmpDiffAmpSpecFresnel.z;
+	result += specularTerm * fresnelTerm * UNITY_PI;
+
+#if AREA_LIGHT_SHADOWS
+	result *= shadow;
+#endif
+
+	return result * lightColor;
+}
--- a/Assets/AreaLight/Shaders/AreaLight.cginc.meta
+++ b/Assets/AreaLight/Shaders/AreaLight.cginc.meta
@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: fd7e771f2b4bdf14da1d4e099b8bd629
+timeCreated: 1453121090
+licenseType: Pro
+ShaderImporter:
+  defaultTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/AreaLight/Shaders/AreaLight.shader
+++ b/Assets/AreaLight/Shaders/AreaLight.shader
@ -0,0 +1,110 @@
+Shader "Hidden/AreaLight" {
+SubShader {
+	Tags { "Queue"="Geometry-1" }
+
+CGINCLUDE
+#include "UnityCG.cginc"
+#include "UnityPBSLighting.cginc"
+#include "UnityDeferredLibrary.cginc"
+
+#define AREA_LIGHT_ENABLE_DIFFUSE 1
+
+#if AREA_LIGHT_SHADOWS
+#include "AreaLightShadows.cginc"
+#endif
+#include "AreaLight.cginc"
+
+sampler2D _CameraGBufferTexture0;
+sampler2D _CameraGBufferTexture1;
+sampler2D _CameraGBufferTexture2;
+
+void DeferredCalculateLightParams (
+	unity_v2f_deferred i,
+	out float3 outWorldPos,
+	out float2 outUV)
+{
+	i.ray = i.ray * (_ProjectionParams.z / i.ray.z);
+	float2 uv = i.uv.xy / i.uv.w;
+	
+	// read depth and reconstruct world position
+	float depth = SAMPLE_DEPTH_TEXTURE(_CameraDepthTexture, uv);
+	depth = Linear01Depth (depth);
+	float4 vpos = float4(i.ray * depth,1);
+	float3 wpos = mul (unity_CameraToWorld, vpos).xyz;
+
+	outWorldPos = wpos;
+	outUV = uv;
+}
+
+half4 CalculateLightDeferred (unity_v2f_deferred i)
+{
+	float3 worldPos;
+	float2 uv;
+	DeferredCalculateLightParams (i, worldPos, uv);
+
+	half4 gbuffer0 = tex2D (_CameraGBufferTexture0, uv);
+	half4 gbuffer1 = tex2D (_CameraGBufferTexture1, uv);
+	half4 gbuffer2 = tex2D (_CameraGBufferTexture2, uv);
+
+	half3 baseColor = gbuffer0.rgb;
+	half3 specColor = gbuffer1.rgb;
+	half oneMinusRoughness = gbuffer1.a;
+	half3 normalWorld = gbuffer2.rgb * 2 - 1;
+	normalWorld = normalize(normalWorld);
+	
+	return CalculateLight (worldPos, baseColor, specColor, oneMinusRoughness, normalWorld,
+		_LightPos.xyz, _LightColor.xyz).rgbb;
+}
+ENDCG
+
+// shadows
+Pass
+{
+	Fog { Mode Off }
+	ZWrite Off
+	Blend One One
+	Cull Front
+	ZTest Always
+	
+	CGPROGRAM
+	#pragma target 3.0
+	#pragma vertex vert_deferred
+	#pragma fragment frag
+	#pragma exclude_renderers nomrt
+	// only one option, so it will always be set and before any includes
+	#pragma multi_compile AREA_LIGHT_SHADOWS
+
+	fixed4 frag (unity_v2f_deferred i) : SV_Target
+	{
+		return CalculateLightDeferred(i);
+	}
+
+	ENDCG
+}
+
+// no shadows
+Pass
+{
+	Fog { Mode Off }
+	ZWrite Off
+	Blend One One
+	Cull Front
+	ZTest Always
+	
+	CGPROGRAM
+	#pragma target 3.0
+	#pragma vertex vert_deferred
+	#pragma fragment frag
+	#pragma exclude_renderers nomrt
+
+	fixed4 frag (unity_v2f_deferred i) : SV_Target
+	{
+		return CalculateLightDeferred(i);
+	}
+
+	ENDCG
+}
+
+}
+Fallback Off
+}
--- a/Assets/AreaLight/Shaders/AreaLight.shader.meta
+++ b/Assets/AreaLight/Shaders/AreaLight.shader.meta
@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: 2b28be3523d190a41910088d1ee68ef7
+timeCreated: 1453120999
+licenseType: Pro
+ShaderImporter:
+  defaultTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/AreaLight/Shaders/AreaLightShadows.cginc
+++ b/Assets/AreaLight/Shaders/AreaLightShadows.cginc
@ -0,0 +1,103 @@
+cbuffer POISSON_DISKS {
+	static half2 poisson[40] = {
+		half2(0.02971195f, 0.8905211f),
+		half2(0.2495298f, 0.732075f),
+		half2(-0.3469206f, 0.6437836f),
+		half2(-0.01878909f, 0.4827394f),
+		half2(-0.2725213f, 0.896188f),
+		half2(-0.6814336f, 0.6480481f),
+		half2(0.4152045f, 0.2794172f),
+		half2(0.1310554f, 0.2675925f),
+		half2(0.5344744f, 0.5624411f),
+		half2(0.8385689f, 0.5137348f),
+		half2(0.6045052f, 0.08393857f),
+		half2(0.4643163f, 0.8684642f),
+		half2(0.335507f, -0.110113f),
+		half2(0.03007669f, -0.0007075319f),
+		half2(0.8077537f, 0.2551664f),
+		half2(-0.1521498f, 0.2429521f),
+		half2(-0.2997617f, 0.0234927f),
+		half2(0.2587779f, -0.4226915f),
+		half2(-0.01448214f, -0.2720358f),
+		half2(-0.3937779f, -0.228529f),
+		half2(-0.7833176f, 0.1737299f),
+		half2(-0.4447537f, 0.2582748f),
+		half2(-0.9030743f, 0.406874f),
+		half2(-0.729588f, -0.2115215f),
+		half2(-0.5383645f, -0.6681151f),
+		half2(-0.07709587f, -0.5395499f),
+		half2(-0.3402214f, -0.4782109f),
+		half2(-0.5580465f, 0.01399586f),
+		half2(-0.105644f, -0.9191031f),
+		half2(-0.8343651f, -0.4750755f),
+		half2(-0.9959937f, -0.0540134f),
+		half2(0.1747736f, -0.936202f),
+		half2(-0.3642297f, -0.926432f),
+		half2(0.1719682f, -0.6798802f),
+		half2(0.4424475f, -0.7744268f),
+		half2(0.6849481f, -0.3031401f),
+		half2(0.5453879f, -0.5152272f),
+		half2(0.9634013f, -0.2050581f),
+		half2(0.9907925f, 0.08320642f),
+		half2(0.8386722f, -0.5428791f)
+	};
+};
+
+Texture2D _Shadowmap;
+SamplerComparisonState sampler_Shadowmap;
+
+// To get a sampler, which doesn't do comparison
+Texture2D _ShadowmapDummy;
+SamplerState sampler_ShadowmapDummy;
+
+half _ShadowReceiverWidth;
+half _ShadowReceiverDistanceScale;
+half2 _ShadowLightWidth;
+half _ShadowBias;
+float4x4 _ShadowProjectionMatrix;
+
+half EdgeSmooth(half2 xy)
+{
+	// Magic tweaks to the shape
+	float corner = 0.4;
+	float outset = 1.0;
+	float smooth = 0.5;
+
+	float d = length(max(abs(xy) - 1 + corner*outset, 0.0)) - corner;
+	return saturate(1 - smoothstep(-smooth, 0, d));	
+}
+
+half Shadow(half3 position)
+{
+	half4 pClip = mul(_ShadowProjectionMatrix, half4(position, 1));
+	half3 p = pClip.xyz/pClip.w;
+	if (any(step(1.0, abs(p.xy))))
+		return 0;
+
+	// The texture contains just 0. But we need to sample it somewhere for Unity to initialize the corresponding sampler.
+	float dist = _ShadowmapDummy.Sample(sampler_ShadowmapDummy, 0).a;
+
+	half edgeSmooth = EdgeSmooth(p.xy);
+	p = p * 0.5 + 0.5;
+
+	for(int j = 0; j < 10; ++j)
+	{
+		half2 offset = poisson[j + 24] * _ShadowReceiverWidth;
+		float depth = _Shadowmap.SampleLevel(sampler_ShadowmapDummy, p.xy + offset, 0).r;
+
+		dist += max(0.0, p.z - depth);
+	}
+
+	dist *= _ShadowReceiverDistanceScale;
+
+	p.z -= _ShadowBias/pClip.w;
+	half shadow = 0;
+	for(int i = 0; i < 32; ++i)
+	{
+		half lightWidth = lerp(_ShadowLightWidth.x, _ShadowLightWidth.y, min(1.0, dist));
+		const half2 offset = poisson[i] * lightWidth;
+		shadow += _Shadowmap.SampleCmpLevelZero(sampler_Shadowmap, p.xy + offset, p.z);
+	} 
+
+	return shadow * edgeSmooth / 32.0;
+}
--- a/Assets/AreaLight/Shaders/AreaLightShadows.cginc.meta
+++ b/Assets/AreaLight/Shaders/AreaLightShadows.cginc.meta
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+fileFormatVersion: 2
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+timeCreated: 1456842264
+licenseType: Pro
+ShaderImporter:
+  defaultTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/AreaLight/Shaders/AreaLightSource.mat
+++ b/Assets/AreaLight/Shaders/AreaLightSource.mat
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--- a/Assets/LightManager/LightManagerFogEllipsoids.prefab.meta
+++ b/Assets/LightManager/LightManagerFogEllipsoids.prefab.meta
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--- a/Assets/LightManager/LightManagerFogLights.prefab
+++ b/Assets/LightManager/LightManagerFogLights.prefab
@ -0,0 +1,52 @@
+%YAML 1.1
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--- a/Assets/LightManager/LightManagerFogLights.prefab.meta
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--- a/Assets/LightManager/Scripts.meta
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+  assetBundleVariant: 
--- a/Assets/LightManager/Scripts/LightManager.cs
+++ b/Assets/LightManager/Scripts/LightManager.cs
@ -0,0 +1,45 @@
+using UnityEngine;
+using System.Collections.Generic;
+
+public class LightManager<T> : MonoBehaviour
+{
+	static LightManager<T> s_Instance;
+	HashSet<T> m_Container = new HashSet<T>();
+
+	static LightManager<T> Instance
+	{
+		get
+		{
+			if (s_Instance != null)
+				return s_Instance;
+
+			s_Instance = (LightManager<T>) FindObjectOfType(typeof(LightManager<T>));
+			return s_Instance;
+		}
+	}
+
+	public static HashSet<T> Get()
+	{
+		LightManager<T> instance = Instance;
+		return instance == null ? new HashSet<T>() : instance.m_Container;
+	}
+
+	public static bool Add(T t)
+	{
+		LightManager<T> instance = Instance;
+		if (instance == null)
+			return false;
+	
+		instance.m_Container.Add(t);
+		return true;
+	}
+
+	public static void Remove(T t)
+	{
+		LightManager<T> instance = Instance;
+		if (instance == null)
+			return;
+	
+		instance.m_Container.Remove(t);
+	}
+}
--- a/Assets/LightManager/Scripts/LightManager.cs.meta
+++ b/Assets/LightManager/Scripts/LightManager.cs.meta
@ -0,0 +1,12 @@
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--- a/Assets/LightManager/Scripts/LightManagerFogEllipsoids.cs
+++ b/Assets/LightManager/Scripts/LightManagerFogEllipsoids.cs
@ -0,0 +1,4 @@
+public class LightManagerFogEllipsoids : LightManager<FogEllipsoid>
+{
+
+}
--- a/Assets/LightManager/Scripts/LightManagerFogEllipsoids.cs.meta
+++ b/Assets/LightManager/Scripts/LightManagerFogEllipsoids.cs.meta
@ -0,0 +1,12 @@
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+  assetBundleVariant: 
--- a/Assets/LightManager/Scripts/LightManagerFogLights.cs
+++ b/Assets/LightManager/Scripts/LightManagerFogLights.cs
@ -0,0 +1,4 @@
+public class LightManagerFogLights : LightManager<FogLight>
+{
+
+}
--- a/Assets/LightManager/Scripts/LightManagerFogLights.cs.meta
+++ b/Assets/LightManager/Scripts/LightManagerFogLights.cs.meta
@ -0,0 +1,12 @@
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+timeCreated: 1454678969
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+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
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+  userData: 
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--- a/Assets/LightOverride.meta
+++ b/Assets/LightOverride.meta
@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: d10a5eee313f53847b6aed96428c054d
+folderAsset: yes
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+DefaultImporter:
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/LightOverride/LightOverride.cs
+++ b/Assets/LightOverride/LightOverride.cs
@ -0,0 +1,81 @@
+using UnityEngine;
+
+public abstract class LightOverride : MonoBehaviour
+{
+
+	[Header("Overrides")]
+	public float m_IntensityMult = 1.0f;
+	[MinValue(0.0f)]
+	public float m_RangeMult = 1.0f;
+
+	public enum Type{None, Point, Tube, Area, Directional}
+
+	Type m_Type = Type.None;
+	bool m_Initialized = false;
+	Light m_Light;
+	TubeLight m_TubeLight;
+	AreaLight m_AreaLight;
+
+	public bool isOn
+	{
+		get
+		{
+			if (!isActiveAndEnabled)
+				return false;
+
+			Init();
+
+			switch(m_Type)
+			{
+				case Type.Point: return m_Light.enabled || GetForceOn();
+				case Type.Tube: return m_TubeLight.enabled || GetForceOn();
+				case Type.Area: return m_AreaLight.enabled || GetForceOn();
+				case Type.Directional: return m_Light.enabled || GetForceOn();
+			}
+
+			return false;
+		}
+
+		private set{}
+	}
+
+	new public Light light {get{Init(); return m_Light;} private set{}}
+	public TubeLight tubeLight {get{Init(); return m_TubeLight;} private set{}}
+	public AreaLight areaLight {get{Init(); return m_AreaLight;} private set{}}
+
+	public Type type {get{Init(); return m_Type;} private set{}}
+
+	// To get the "enabled" state checkbox
+	void Update()
+	{
+
+	}
+
+	public abstract bool GetForceOn();
+
+	void Init()
+	{
+		if (m_Initialized)
+			return;
+
+		if ((m_Light = GetComponent<Light>()) != null)
+		{
+			switch(m_Light.type)
+			{
+				case LightType.Point: m_Type = Type.Point; break;
+				case LightType.Directional: m_Type = Type.Directional; break;
+				default: m_Type = Type.None; break;
+			}
+		}
+		else if ((m_TubeLight = GetComponent<TubeLight>()) != null)
+		{
+			m_Type = Type.Tube;
+		}
+		else if ((m_AreaLight = GetComponent<AreaLight>()) != null)
+		{
+			m_Type = Type.Area;
+		}
+
+		m_Initialized = true;
+	}
+}
--- a/Assets/LightOverride/LightOverride.cs.meta
+++ b/Assets/LightOverride/LightOverride.cs.meta
@ -0,0 +1,12 @@
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--- a/Assets/MinValueAttribute.meta
+++ b/Assets/MinValueAttribute.meta
@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: 9ad541daae932084a874bba45d821e60
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--- a/Assets/MinValueAttribute/Editor.meta
+++ b/Assets/MinValueAttribute/Editor.meta
@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: 32a49e8d55dc4c848ae0d5a0aca3b357
+folderAsset: yes
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+licenseType: Pro
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+  userData: 
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+  assetBundleVariant: 
--- a/Assets/MinValueAttribute/Editor/MinValueDrawer.cs
+++ b/Assets/MinValueAttribute/Editor/MinValueDrawer.cs
@ -0,0 +1,23 @@
+using UnityEngine;
+using UnityEditor;
+
+[CustomPropertyDrawer (typeof (MinValueAttribute))]
+public class MinValueDrawer : PropertyDrawer {
+
+	public override void OnGUI (Rect position, SerializedProperty property, GUIContent label)
+	{
+		if (property.propertyType != SerializedPropertyType.Float && property.propertyType != SerializedPropertyType.Integer)
+		{
+			EditorGUI.LabelField (position, label.text, "Use MinValue with float or int.");
+			return;
+		}
+
+		EditorGUI.PropertyField(position, property, label);
+
+		if (GUI.changed)
+		{
+			MinValueAttribute minValue = attribute as MinValueAttribute;
+			property.floatValue = Mathf.Max(property.floatValue, minValue.min);
+		}
+	}
+}
--- a/Assets/MinValueAttribute/Editor/MinValueDrawer.cs.meta
+++ b/Assets/MinValueAttribute/Editor/MinValueDrawer.cs.meta
@ -0,0 +1,12 @@
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+  assetBundleVariant: 
--- a/Assets/MinValueAttribute/MinValueAttribute.cs
+++ b/Assets/MinValueAttribute/MinValueAttribute.cs
@ -0,0 +1,11 @@
+using UnityEngine;
+
+public class MinValueAttribute : PropertyAttribute
+{
+	public float min;
+
+	public MinValueAttribute (float min)
+	{
+		this.min = min;
+	}
+}
--- a/Assets/MinValueAttribute/MinValueAttribute.cs.meta
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--- a/Assets/Scenes/Area
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--- a/Assets/Scenes/Area
+++ b/Assets/Scenes/Area
@ -0,0 +1,8 @@
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+++ b/Assets/Scenes/Materials/blck.mat
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+++ b/Assets/Scenes/Materials/blck.mat.meta
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--- a/Assets/Scenes/Tube
+++ b/Assets/Scenes/Tube
--- a/density.unity.meta
+++ b/density.unity.meta
@ -0,0 +1,8 @@
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+timeCreated: 1477692305
+licenseType: Pro
+DefaultImporter:
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/Scenes/Tube
+++ b/Assets/Scenes/Tube
--- a/density.unity.meta
+++ b/density.unity.meta
@ -0,0 +1,8 @@
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+timeCreated: 1477693506
+licenseType: Pro
+DefaultImporter:
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/TubeLight.meta
+++ b/Assets/TubeLight.meta
@ -0,0 +1,9 @@
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+folderAsset: yes
+timeCreated: 1476957694
+licenseType: Pro
+DefaultImporter:
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/TubeLight/Editor.meta
+++ b/Assets/TubeLight/Editor.meta
@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: 95f79d7423b1c4239ba221be74ca9134
+folderAsset: yes
+timeCreated: 1446582841
+licenseType: Pro
+DefaultImporter:
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/TubeLight/Editor/TubeLightEditor.cs
+++ b/Assets/TubeLight/Editor/TubeLightEditor.cs
@ -0,0 +1,62 @@
+using UnityEngine;
+using UnityEditor;
+using UnityEditor.AnimatedValues;
+
+[CustomEditor(typeof(TubeLight))]
+[CanEditMultipleObjects]
+public class TubeLightEditor : Editor {
+
+	AnimFloat m_ShowInfo;
+
+	void OnEnable()
+	{
+		m_ShowInfo = new AnimFloat(0);
+		m_ShowInfo.valueChanged.AddListener(Repaint);
+		m_ShowInfo.speed = 0.5f;
+	}
+
+	override public void OnInspectorGUI()
+	{
+		DrawDefaultInspector();
+
+		if (targets.Length > 1)
+			return;
+
+		EditorGUILayout.Space();
+
+		if(GUILayout.Button("Add a shadow plane"))
+			m_ShowInfo.value = AddShadowPlane() ? 0 : 100;
+
+		foreach (TubeLightShadowPlane shadowPlane in ((TubeLight)target).m_ShadowPlanes)
+			if (shadowPlane != null)
+				EditorGUILayout.ObjectField("Shadow Plane", shadowPlane, typeof(TubeLightShadowPlane), !EditorUtility.IsPersistent(target));
+
+		m_ShowInfo.target = 0;
+		if (EditorGUILayout.BeginFadeGroup(Mathf.Min(1.0f, m_ShowInfo.value)))
+			EditorGUILayout.HelpBox("Limit of " + TubeLight.maxPlanes + " planes reached. Delete an existing one.", MessageType.Info);
+		EditorGUILayout.EndFadeGroup();
+	}
+
+	bool AddShadowPlane()
+	{
+		TubeLight tubeLight = (TubeLight)target;
+
+		int i = 0;
+		for (; i < TubeLight.maxPlanes; i++)
+		{
+			if (tubeLight.m_ShadowPlanes[i] != null)
+				continue;
+			
+			GameObject go = new GameObject("Shadow Plane");
+			TubeLightShadowPlane shadowPlane = go.AddComponent<TubeLightShadowPlane>();
+
+			go.transform.position = tubeLight.transform.position + go.transform.forward;
+			go.transform.parent = tubeLight.transform;
+			tubeLight.m_ShadowPlanes[i] = shadowPlane;
+			EditorUtility.SetDirty (tubeLight);
+			break;
+		}
+
+		return i < TubeLight.maxPlanes;
+	}
+}
--- a/Assets/TubeLight/Editor/TubeLightEditor.cs.meta
+++ b/Assets/TubeLight/Editor/TubeLightEditor.cs.meta
@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 00a6ee99a4a9a44879507a5c4077d7a0
+timeCreated: 1446582855
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/TubeLight/Scripts.meta
+++ b/Assets/TubeLight/Scripts.meta
@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: fa6f2ae72d2fc9643afe34db34a35a28
+folderAsset: yes
+timeCreated: 1477748611
+licenseType: Pro
+DefaultImporter:
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/TubeLight/Scripts/TubeLight.cs
+++ b/Assets/TubeLight/Scripts/TubeLight.cs
@ -0,0 +1,327 @@
+using UnityEngine;
+using UnityEngine.Rendering;
+using System.Collections.Generic;
+
+[ExecuteInEditMode]
+public class TubeLight : MonoBehaviour
+{
+	public float m_Intensity = 0.8f;
+	public Color m_Color = Color.white;
+	public float m_Range = 10.0f;
+	public float m_Radius = 0.3f;
+	public float m_Length = 0.0f;
+
+	[HideInInspector]
+	public Mesh m_Sphere;
+	[HideInInspector]
+	public Mesh m_Capsule;
+	[HideInInspector]
+	public Shader m_ProxyShader;
+	Material m_ProxyMaterial;
+
+	public bool m_RenderSource = false;
+	Renderer m_SourceRenderer;
+	Transform m_SourceTransform;
+	Mesh m_SourceMesh;
+	float m_LastLength = -1;
+
+	public const int maxPlanes = 2;
+	[HideInInspector]
+	public TubeLightShadowPlane[] m_ShadowPlanes = new TubeLightShadowPlane[maxPlanes];
+
+	bool m_Initialized = false;
+	MaterialPropertyBlock m_props;
+
+	const float kMinRadius = 0.001f;
+	bool renderSource {get{return m_RenderSource && m_Radius >= kMinRadius;}}
+
+	Dictionary<Camera, CommandBuffer> m_Cameras = new Dictionary<Camera, CommandBuffer>();
+	static CameraEvent kCameraEvent = CameraEvent.AfterLighting;
+
+	void Start()
+	{
+		if(!Init())
+			return;
+		UpdateMeshesAndBounds();
+	}
+
+	bool Init()
+	{
+		if (m_Initialized)
+			return true;
+
+		// Sometimes on editor startup (especially after project upgrade?), Init() gets called
+		// while m_ProxyShader, m_Sphere or m_Capsule is still null/hasn't loaded.
+		if (m_ProxyShader == null || m_Sphere  == null || m_Capsule == null)
+			return false;
+
+		// Proxy
+		m_ProxyMaterial = new Material(m_ProxyShader);
+		m_ProxyMaterial.hideFlags = HideFlags.HideAndDontSave;
+
+		// Source
+		m_SourceMesh = Instantiate<Mesh>(m_Capsule);
+		m_SourceMesh.hideFlags = HideFlags.HideAndDontSave;
+
+		// Can't create the MeshFilter here, since for some reason the DontSave flag has
+		// no effect on it. Has to be added to the prefab instead.
+		//m_SourceMeshFilter = gameObject.AddComponent<MeshFilter>();
+		MeshFilter mfs = gameObject.GetComponent<MeshFilter>();
+		// Hmm, causes trouble
+		// mfs.hideFlags = HideFlags.HideInInspector;
+		mfs.sharedMesh = m_SourceMesh;
+
+		// A similar problem here.
+		// m_SourceRenderer = gameObject.AddComponent<MeshRenderer>();
+		m_SourceRenderer = gameObject.GetComponent<MeshRenderer>();
+		m_SourceRenderer.enabled = true;
+
+		// We want it to be pickable in the scene view, so no HideAndDontSave
+		// Hmm, causes trouble
+		// m_SourceRenderer.hideFlags = HideFlags.DontSave | HideFlags.HideInInspector;
+
+		m_SourceTransform = transform;
+
+		m_Initialized = true;
+		return true;
+	}
+
+	void OnEnable()
+	{
+		if(m_props == null)
+			m_props = new MaterialPropertyBlock();
+
+		if(!Init())
+			return;
+		UpdateMeshesAndBounds();
+	}
+
+	void OnDisable()
+	{
+		if(!Application.isPlaying)
+			Cleanup();
+		else
+			for(var e = m_Cameras.GetEnumerator(); e.MoveNext();)
+				if(e.Current.Value != null)
+					e.Current.Value.Clear();
+	}
+
+	void OnDestroy()
+	{
+		if (m_ProxyMaterial != null)
+			DestroyImmediate(m_ProxyMaterial);
+		if (m_SourceMesh != null)
+			DestroyImmediate(m_SourceMesh);
+		Cleanup();
+	}
+
+	void Cleanup()
+	{
+		for(var e = m_Cameras.GetEnumerator(); e.MoveNext();)
+		{
+			var cam = e.Current;
+			if(cam.Key != null && cam.Value != null)
+				cam.Key.RemoveCommandBuffer (kCameraEvent, cam.Value);
+		}
+		m_Cameras.Clear();
+	}
+
+	void UpdateMeshesAndBounds()
+	{
+		// Sanitize
+		m_Range = Mathf.Max(m_Range, 0);
+		m_Radius = Mathf.Max(m_Radius, 0);
+		m_Length = Mathf.Max(m_Length, 0);
+		m_Intensity = Mathf.Max(m_Intensity, 0);
+
+		Vector3 sourceSize = renderSource ? Vector3.one * m_Radius * 2.0f : Vector3.one;
+		if (m_SourceTransform.localScale != sourceSize || m_Length != m_LastLength)
+		{
+			m_LastLength = m_Length;
+			
+			Vector3[] vertices = m_Capsule.vertices;
+			for (int i = 0; i < vertices.Length; i++)
+			{
+				if (renderSource)
+					vertices[i].y += Mathf.Sign(vertices[i].y) * (- 0.5f + 0.25f * m_Length / m_Radius);
+				else
+					vertices[i] = Vector3.one * 0.0001f;
+			}
+
+			m_SourceMesh.vertices = vertices;
+		}
+
+		m_SourceTransform.localScale = sourceSize;
+
+		float range = m_Range + m_Radius;
+
+		// TODO: lazy for now, should draw a tight capsule
+		range += 0.5f * m_Length;
+		range *= 1.02f;
+
+		range /= m_Radius;
+
+		m_SourceMesh.bounds = new Bounds(Vector3.zero, Vector3.one * range);
+	}
+
+	void Update()
+	{
+		if(!Init())
+			return;
+
+		UpdateMeshesAndBounds();
+
+		if(Application.isPlaying)
+			for(var e = m_Cameras.GetEnumerator(); e.MoveNext();)
+				if(e.Current.Value != null)
+					e.Current.Value.Clear();
+	}
+
+	Color GetColor()
+	{
+		if (QualitySettings.activeColorSpace == ColorSpace.Gamma)
+			return m_Color * m_Intensity;
+
+		return new Color(
+			Mathf.GammaToLinearSpace(m_Color.r * m_Intensity),
+			Mathf.GammaToLinearSpace(m_Color.g * m_Intensity),
+			Mathf.GammaToLinearSpace(m_Color.b * m_Intensity),
+			1.0f
+		);
+	}
+
+	void OnWillRenderObject()
+	{
+		if(InsideShadowmapCameraRender())
+			return;
+
+		if(!Init())
+			return;
+
+		// TODO: This is just a very rough guess. Need to properly calculate the surface emission
+		// intensity based on light's intensity.
+		m_props.SetVector("_EmissionColor", m_Color * Mathf.Sqrt(m_Intensity) * 2.0f);
+		m_SourceRenderer.SetPropertyBlock(m_props);
+
+		SetUpCommandBuffer();
+	}
+
+	void SetUpCommandBuffer()
+	{
+		Camera cam = Camera.current;
+		CommandBuffer buf = null;
+		if (!m_Cameras.ContainsKey(cam))
+		{
+			buf = new CommandBuffer();
+			buf.name = gameObject.name;
+			m_Cameras[cam] = buf;
+			cam.AddCommandBuffer(kCameraEvent, buf);
+			cam.depthTextureMode |= DepthTextureMode.Depth;
+		}
+		else
+		{
+			buf = m_Cameras[cam];
+			buf.Clear();
+		}
+
+		Transform t = transform;
+		Vector3 lightAxis = t.up;
+		Vector3 lightPos = t.position - 0.5f * lightAxis * m_Length;
+		buf.SetGlobalVector("_LightPos", new Vector4(lightPos.x, lightPos.y, lightPos.z, 1.0f/(m_Range*m_Range)));
+		buf.SetGlobalVector("_LightAxis", new Vector4(lightAxis.x, lightAxis.y, lightAxis.z, 0.0f));
+		buf.SetGlobalFloat("_LightAsQuad", 0);
+		buf.SetGlobalFloat("_LightRadius", m_Radius);
+		buf.SetGlobalFloat("_LightLength", m_Length);
+		buf.SetGlobalVector("_LightColor", GetColor());
+
+		SetShadowPlaneVectors(buf);
+
+		float range = m_Range + m_Radius;
+		// TODO: lazy for now, should draw a tight capsule
+		range += 0.5f * m_Length;
+		range *= 1.02f;
+		range /= m_Radius;
+
+		Matrix4x4 m = Matrix4x4.Scale(Vector3.one * range);
+		buf.DrawMesh(m_Sphere, t.localToWorldMatrix * m, m_ProxyMaterial, 0, 0);
+	}
+
+	public TubeLightShadowPlane.Params[] GetShadowPlaneParams(ref TubeLightShadowPlane.Params[] p)
+	{
+		if (p == null || p.Length != maxPlanes)
+			p = new TubeLightShadowPlane.Params[maxPlanes];
+		for(int i = 0; i < maxPlanes; i++)
+		{
+			TubeLightShadowPlane sp = m_ShadowPlanes[i];
+			p[i].plane = sp == null ? new Vector4(0, 0, 0, 1) : sp.GetShadowPlaneVector();
+			p[i].feather = sp == null ? 1 : sp.feather;
+		}
+		return p;
+	}
+
+	TubeLightShadowPlane.Params[] sppArr = new TubeLightShadowPlane.Params[maxPlanes];
+
+	void SetShadowPlaneVectors(CommandBuffer buf)
+	{
+		var p = GetShadowPlaneParams(ref sppArr);
+
+		for (int i = 0, n = p.Length; i < n; ++i)
+		{
+			var spp = p[i];
+			if(i == 0) {
+				buf.SetGlobalVector("_ShadowPlane0", spp.plane);
+				buf.SetGlobalFloat("_ShadowPlaneFeather0", spp.feather);
+			} else if(i == 1) {
+				buf.SetGlobalVector("_ShadowPlane1", spp.plane);
+				buf.SetGlobalFloat("_ShadowPlaneFeather1", spp.feather);
+			} else {
+				buf.SetGlobalVector("_ShadowPlane" + i, spp.plane);
+				buf.SetGlobalFloat("_ShadowPlaneFeather" + i, spp.feather);
+			}
+		}
+	}
+
+	void OnDrawGizmosSelected()
+	{
+		if (m_SourceTransform == null)
+			return;
+
+		Gizmos.color = Color.white;
+		// Skip the scale
+		Matrix4x4 m = new Matrix4x4();
+		m.SetTRS(m_SourceTransform.position, m_SourceTransform.rotation, Vector3.one);
+		Gizmos.matrix = m;
+
+		Gizmos.DrawWireSphere(Vector3.zero, m_Radius + m_Range + 0.5f * m_Length);
+
+		Vector3 start = 0.5f * Vector3.up * m_Length;
+		Gizmos.DrawWireSphere(start, m_Radius);
+
+		if (m_Length == 0.0f)
+			return;
+
+		Vector3 end = - 0.5f * Vector3.up * m_Length;
+		Gizmos.DrawWireSphere(end, m_Radius);
+
+		Vector3 r = Vector3.forward * m_Radius;
+		Gizmos.DrawLine(start + r, end + r);
+		Gizmos.DrawLine(start - r, end - r);
+
+		r = Vector3.right * m_Radius;
+		Gizmos.DrawLine(start + r, end + r);
+		Gizmos.DrawLine(start - r, end - r);
+
+	}
+
+	void OnDrawGizmos()
+	{
+		// TODO: Looks like this changed the name. Find a more robust way to use the icon.
+        // Gizmos.DrawIcon(transform.position, "PointLight Gizmo_MIP0.png", true);
+    }
+
+    bool InsideShadowmapCameraRender()
+	{
+		RenderTexture target = Camera.current.targetTexture;
+		return target != null && target.format == RenderTextureFormat.Shadowmap;
+	}
+}
--- a/Assets/TubeLight/Scripts/TubeLight.cs.meta
+++ b/Assets/TubeLight/Scripts/TubeLight.cs.meta
@ -0,0 +1,16 @@
+fileFormatVersion: 2
+guid: 5a3b99ed98424ea4587ec18d930a1d77
+timeCreated: 1444638222
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences:
+  - m_Sphere: {fileID: 10207, guid: 0000000000000000e000000000000000, type: 0}
+  - m_Capsule: {fileID: 10208, guid: 0000000000000000e000000000000000, type: 0}
+  - m_ProxyShader: {fileID: 4800000, guid: 2e6fd90941a3e3c458d01f851dca21ed, type: 3}
+  - m_SourceShader: {fileID: 10755, guid: 0000000000000000f000000000000000, type: 0}
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/TubeLight/Scripts/TubeLightShadowPlane.cs
+++ b/Assets/TubeLight/Scripts/TubeLightShadowPlane.cs
@ -0,0 +1,32 @@
+using UnityEngine;
+
+public class TubeLightShadowPlane : MonoBehaviour
+{
+	[MinValue(0)]
+	public float m_Feather = 1.0f;
+
+	public float feather {get{ return m_Feather * 0.1f;}}
+
+	public Vector4 GetShadowPlaneVector()
+	{
+		Transform t = transform;
+		Vector3 v = t.forward;
+		float d = Vector3.Dot(t.position, v);
+		return new Vector4(v.x, v.y, v.z, d);
+	}
+
+	void OnDrawGizmosSelected()
+	{
+		Matrix4x4 m = Matrix4x4.zero;
+		Transform t = transform;
+		m.SetTRS(t.position, t.rotation, new Vector3(1, 1, 0));
+		Gizmos.matrix = m;
+		Gizmos.DrawWireSphere(Vector3.zero, 1);
+	}
+
+	public struct Params
+	{
+		public Vector4 plane;
+		public float feather;
+	}
+}
--- a/Assets/TubeLight/Scripts/TubeLightShadowPlane.cs.meta
+++ b/Assets/TubeLight/Scripts/TubeLightShadowPlane.cs.meta
@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 66d8e50a047abb54aa901236f0ed84d2
+timeCreated: 1446129202
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/TubeLight/Shaders.meta
+++ b/Assets/TubeLight/Shaders.meta
@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: b041de53e70b28e4fb9256c930c13615
+folderAsset: yes
+timeCreated: 1477749221
+licenseType: Pro
+DefaultImporter:
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/TubeLight/Shaders/TubeLight.cginc
+++ b/Assets/TubeLight/Shaders/TubeLight.cginc
@ -0,0 +1,189 @@
+// Based on 'Real Shading in Unreal Engine 4'
+// http://blog.selfshadow.com/publications/s2013-shading-course/#course_content
+
+#include "TubeLightAttenuation.cginc"
+
+#ifndef SHADOW_PLANES
+#define SHADOW_PLANES 1
+#endif
+
+#if SHADOW_PLANES
+#include "TubeLightShadowPlanes.cginc"
+#endif
+
+#define SHARP_EDGE_FIX 1
+
+void SphereLightToPointLight(float3 pos, float3 lightPos, float3 eyeVec, half3 normal, float sphereRad, half rangeSqInv, inout UnityLight light, out half lightDist)
+{
+	half3 viewDir = -eyeVec;
+	half3 r = reflect (viewDir, normal);
+
+	float3 L = lightPos - pos;
+	float3 centerToRay	= dot (L, r) * r - L;
+	float3 closestPoint	= L + centerToRay * saturate(sphereRad / length(centerToRay));
+
+	lightDist = length(closestPoint);
+	light.dir = closestPoint / lightDist;
+
+	half distLSq = dot(L, L);
+	light.ndotl = saturate(dot(normal, L/sqrt(distLSq)));
+
+	float distNorm = distLSq * rangeSqInv;
+	float atten = AttenuationToZero(distNorm);
+	light.color *= atten;
+}
+
+void TubeLightToPointLight(float3 pos, float3 tubeStart, float3 tubeEnd, float3 normal, float tubeRad, float rangeSqInv, float3 representativeDir, float3 lightColor, out float3 outLightColor, out float3 outLightDir, out float outNdotL, out half outLightDist)
+{
+	half3 N = normal;
+	float3 L0 = tubeStart - pos;
+	float3 L1 = tubeEnd - pos;
+	float L0dotL0 = dot(L0, L0);
+	float distL0 = sqrt(L0dotL0);
+	float distL1 = length(L1);
+	
+	float NdotL0 = dot(L0, N) / (2.0 * distL0);
+	float NdotL1 = dot(L1, N) / (2.0 * distL1);
+	outNdotL = saturate(NdotL0 + NdotL1);
+	
+	float3 Ldir = L1 - L0;
+	float RepdotL0 = dot(representativeDir, L0);
+	float RepdotLdir = dot(representativeDir, Ldir);
+	float L0dotLdir	= dot(L0, Ldir);
+	float LdirdotLdir = dot(Ldir, Ldir);
+	float distLdir = sqrt(LdirdotLdir);
+	
+#if SHARP_EDGE_FIX
+	// There's a very visible discontinuity if we just take the closest distance to ray,
+	// as the original paper suggests. This is an attempt to fix it, but it gets slightly more expensive and
+	// has its own artifact, although this time at least C0 smooth.
+
+	// Smallest angle to ray
+	float t = (L0dotLdir * RepdotL0 - L0dotL0 * RepdotLdir) / (L0dotLdir * RepdotLdir - LdirdotLdir * RepdotL0);
+	t = saturate(t);
+
+	// As representativeDir becomes parallel (well, in some plane) to Ldir and then points away, t flips from 0 to 1 (or vv) and a discontinuity shows up.
+	// Counteract by detecting that relative angle/position and flip t. The discontinuity in t moves to the back side.
+	float3 L0xLdir = cross(L0, Ldir);
+	float3 LdirxR = cross(Ldir, representativeDir);
+	float RepAtLdir = dot(L0xLdir, LdirxR);
+
+	// RepAtLdir is negative if R points away from Ldir.
+	// TODO: check if lerp below is indeed cheaper.
+	// if (RepAtLdir < 0)
+	// 	t = 1 - t;
+	t = lerp(1 - t, t, step(0, RepAtLdir));
+
+#else
+	// Original by Karis
+	// Closest distance to ray
+	float t = (RepdotL0 * RepdotLdir - L0dotLdir) / (distLdir * distLdir - RepdotLdir * RepdotLdir);
+	t = saturate(t);
+
+#endif
+
+	float3 closestPoint = L0 + Ldir * t;
+	float3 centerToRay = dot(closestPoint, representativeDir) * representativeDir - closestPoint;
+
+	closestPoint = closestPoint + centerToRay * saturate(tubeRad / length(centerToRay));
+
+	outLightDist = length(closestPoint);
+	outLightDir = closestPoint / outLightDist;
+
+	float distNorm = 0.5f * (distL0 * distL1 + dot(L0, L1)) * rangeSqInv;
+	outLightColor = lightColor * AttenuationToZero(distNorm);
+}
+
+void TubeLightToPointLight(float3 pos, float3 tubeStart, float3 tubeEnd, float3 eyeVec, float3 normal, float tubeRad, float rangeSqInv, float3 lightColor, out float3 outLightColor, out float3 outLightDir, out float outNdotL, out half outLightDist)
+{
+	half3 viewDir = -eyeVec;
+	half3 representativeDir = reflect (viewDir, normal);
+
+	TubeLightToPointLight(pos, tubeStart, tubeEnd, normal, tubeRad, rangeSqInv, representativeDir, lightColor, outLightColor, outLightDir, outNdotL, outLightDist);
+}
+
+inline half GGXTerm_Area (half NdotH, half roughness, half lightDist, half lightRadius)
+{
+	half a = roughness * roughness;
+	half a2 = a * a;
+	half d = NdotH * NdotH * (a2 - 1.f) + 1.f;
+	d = max(d, 0.000001);
+
+	half aP = saturate( lightRadius / (lightDist*2.0) + a);
+	half aP2 = aP * aP;
+
+	return a2 * a2 / (UNITY_PI * d * d * aP2);
+}
+
+half4 BRDF1_Unity_PBS_Area (half3 diffColor, half3 specColor, half oneMinusReflectivity, half oneMinusRoughness,
+	half3 normal, half3 viewDir,
+	UnityLight light, UnityIndirect gi, half lightDist, half lightRadius)
+{
+	half roughness = 1-oneMinusRoughness;
+	half3 halfDir = Unity_SafeNormalize (light.dir + viewDir);
+
+	half nl = light.ndotl;
+	half nh = BlinnTerm (normal, halfDir);
+	half nv = DotClamped (normal, viewDir);
+	half lv = DotClamped (light.dir, viewDir);
+	half lh = DotClamped (light.dir, halfDir);
+
+	half V = SmithGGXVisibilityTerm (nl, nv, roughness);
+	half D = GGXTerm_Area (nh, roughness, lightDist, lightRadius);
+
+	half nlPow5 = Pow5 (1-nl);
+	half nvPow5 = Pow5 (1-nv);
+	half Fd90 = 0.5 + 2 * lh * lh * roughness;
+	half disneyDiffuse = (1 + (Fd90-1) * nlPow5) * (1 + (Fd90-1) * nvPow5);
+	
+	// HACK: theoretically we should divide by Pi diffuseTerm and not multiply specularTerm!
+	// BUT 1) that will make shader look significantly darker than Legacy ones
+	// and 2) on engine side "Non-important" lights have to be divided by Pi to in cases when they are injected into ambient SH
+	// NOTE: multiplication by Pi is part of single constant together with 1/4 now
+
+	half specularTerm = (V * D) * (UNITY_PI/4); // Torrance-Sparrow model, Fresnel is applied later (for optimization reasons)
+	if (IsGammaSpace())
+		specularTerm = sqrt(max(1e-4h, specularTerm));
+	specularTerm = max(0, specularTerm * nl);
+	half diffuseTerm = disneyDiffuse * nl;
+	
+	half grazingTerm = saturate(oneMinusRoughness + (1-oneMinusReflectivity));
+    half3 color =	diffColor * (gi.diffuse + light.color * diffuseTerm)
+                    + specularTerm * light.color * FresnelTerm (specColor, lh)
+					+ gi.specular * FresnelLerp (specColor, grazingTerm, nv);
+
+	return half4(color, 1);
+}
+
+half4 CalculateLight (float3 worldPos, float2 uv, half3 baseColor, half3 specColor, half oneMinusRoughness, half3 normalWorld,
+	half3 lightStart, half3 lightEnd, half3 lightColor, half lightRadius, half lightRangeSqInv)
+{
+	UnityLight light = (UnityLight)0;
+
+	float3 eyeVec = normalize(worldPos - _WorldSpaceCameraPos);
+	half lightDist = 0;
+
+#if 0
+	// Can't use a keyword, because no keywords in material property blocks.
+	// TODO: is it worth the dynamic branch?
+	if (sphereLight)
+		SphereLightToPointLight (worldPos, lightStart, eyeVec, normalWorld, lightRadius, lightRangeSqInv, light, lightDist);
+	else
+#else
+		TubeLightToPointLight (worldPos, lightStart, lightEnd, eyeVec, normalWorld, lightRadius, lightRangeSqInv, lightColor, light.color, light.dir, light.ndotl, lightDist);
+#endif
+
+#if SHADOW_PLANES
+	light.color *= ShadowPlanes(worldPos);
+#endif
+
+	half oneMinusReflectivity = 1 - SpecularStrength(specColor.rgb);
+	
+	UnityIndirect ind;
+	UNITY_INITIALIZE_OUTPUT(UnityIndirect, ind);
+	ind.diffuse = 0;
+	ind.specular = 0;
+
+    half4 res = BRDF1_Unity_PBS_Area (baseColor, specColor, oneMinusReflectivity, oneMinusRoughness, normalWorld, -eyeVec, light, ind, lightDist, lightRadius);
+	return res;
+}
--- a/Assets/TubeLight/Shaders/TubeLight.cginc.meta
+++ b/Assets/TubeLight/Shaders/TubeLight.cginc.meta
@ -0,0 +1,9 @@
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+timeCreated: 1452380090
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+  defaultTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/TubeLight/Shaders/TubeLight.shader
+++ b/Assets/TubeLight/Shaders/TubeLight.shader
@ -0,0 +1,87 @@
+Shader "Hidden/TubeLight" {
+SubShader {
+	Tags { "Queue"="Geometry-1" }
+
+CGINCLUDE
+#include "UnityCG.cginc"
+#include "UnityPBSLighting.cginc"
+#include "UnityDeferredLibrary.cginc"
+
+#define SHADOW_PLANES 1
+#include "TubeLight.cginc"
+
+sampler2D _CameraGBufferTexture0;
+sampler2D _CameraGBufferTexture1;
+sampler2D _CameraGBufferTexture2;
+
+float _LightRadius;
+float _LightLength;
+float4 _LightAxis;
+
+
+void DeferredCalculateLightParams (
+	unity_v2f_deferred i,
+	out float3 outWorldPos,
+	out float2 outUV)
+{
+	i.ray = i.ray * (_ProjectionParams.z / i.ray.z);
+	float2 uv = i.uv.xy / i.uv.w;
+	
+	// read depth and reconstruct world position
+	float depth = SAMPLE_DEPTH_TEXTURE(_CameraDepthTexture, uv);
+	depth = Linear01Depth (depth);
+	float4 vpos = float4(i.ray * depth,1);
+	float3 wpos = mul (unity_CameraToWorld, vpos).xyz;
+
+	outWorldPos = wpos;
+	outUV = uv;
+}
+
+half4 CalculateLightDeferred (unity_v2f_deferred i)
+{
+	float3 worldPos;
+	float2 uv;
+	DeferredCalculateLightParams (i, worldPos, uv);
+
+	half4 gbuffer0 = tex2D (_CameraGBufferTexture0, uv);
+	half4 gbuffer1 = tex2D (_CameraGBufferTexture1, uv);
+	half4 gbuffer2 = tex2D (_CameraGBufferTexture2, uv);
+
+	half3 baseColor = gbuffer0.rgb;
+	half3 specColor = gbuffer1.rgb;
+	half oneMinusRoughness = gbuffer1.a;
+	half3 normalWorld = gbuffer2.rgb * 2 - 1;
+	normalWorld = normalize(normalWorld);
+	
+	return CalculateLight (worldPos, uv, baseColor, specColor, oneMinusRoughness, normalWorld,
+		_LightPos.xyz, _LightPos.xyz + _LightAxis.xyz * _LightLength, _LightColor.xyz, _LightRadius, _LightPos.w);
+}
+ENDCG
+
+Pass {
+	Fog { Mode Off }
+	ZWrite Off
+	Blend One One
+	Cull Front
+	ZTest Always
+
+	
+CGPROGRAM
+#pragma target 3.0
+#pragma vertex vert_deferred
+#pragma fragment frag
+#pragma exclude_renderers nomrt
+
+fixed4 frag (unity_v2f_deferred i) : SV_Target
+{
+	half4 light = CalculateLightDeferred(i);
+	// TODO: squash those NaNs at their source
+	return isnan(light) ? 0 : light;
+}
+
+ENDCG
+}
+
+}
+Fallback Off
+}
--- a/Assets/TubeLight/Shaders/TubeLight.shader.meta
+++ b/Assets/TubeLight/Shaders/TubeLight.shader.meta
@ -0,0 +1,9 @@
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--- a/Assets/TubeLight/Shaders/TubeLightAttenuation.cginc
+++ b/Assets/TubeLight/Shaders/TubeLightAttenuation.cginc
@ -0,0 +1,55 @@
+#ifndef TUBE_LIGHT_ATTENUATION_LEGACY
+	#define TUBE_LIGHT_ATTENUATION_LEGACY 0
+#endif
+
+#if TUBE_LIGHT_ATTENUATION_LEGACY
+
+	float Attenuation(float distNorm)
+	{
+		return 1.0 / (1.0 + 25.0 * distNorm);
+	}
+
+	float AttenuationToZero(float distNorm)
+	{
+		float att = Attenuation(distNorm);
+		
+		// Replicating unity light attenuation - pulled to 0 at range
+		// if (distNorm > 0.8 * 0.8)
+		// 		att *= 1 - (distNorm - 0.8 * 0.8) / (1 - 0.8 * 0.8);
+		// Same, simplified
+		float oneDistNorm = 1.0 - distNorm;
+		att *= lerp(1.0, oneDistNorm * 2.78, step(0.64, distNorm));
+
+		att *= step(0.0, oneDistNorm);
+
+		return att;
+	}
+
+#else
+
+	float Attenuation(float distSqr)
+	{
+		float d = sqrt(distSqr);
+		float kDefaultPointLightRadius = 0.25;
+		return 1.0 / pow(1.0 +   d/kDefaultPointLightRadius, 2);
+	}
+
+	float AttenuationToZero(float distSqr)
+	{
+		// attenuation = 1 / (1 + distance_to_light / light_radius)^2
+		//             = 1 / (1 + 2*(d/r) + (d/r)^2)
+		// For more details see: https://imdoingitwrong.wordpress.com/2011/01/31/light-attenuation/
+		float d = sqrt(distSqr);
+		float kDefaultPointLightRadius = 0.25;
+		float atten =         1.0 / pow(1.0 +   d/kDefaultPointLightRadius, 2);
+		float kCutoff = 1.0 / pow(1.0 + 1.0/kDefaultPointLightRadius, 2); // cutoff equal to attenuation at distance 1.0
+
+		// Force attenuation to fall towards zero at distance 1.0
+		atten = (atten - kCutoff) / (1.f - kCutoff);
+		if (d >= 1.f)
+			atten = 0.f;
+		
+		return atten;
+	}
+
+#endif
--- a/Assets/TubeLight/Shaders/TubeLightAttenuation.cginc.meta
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--- a/Assets/TubeLight/Shaders/TubeLightShadowPlanes.cginc
+++ b/Assets/TubeLight/Shaders/TubeLightShadowPlanes.cginc
@ -0,0 +1,38 @@
+half ShadowPlane(half3 worldPos, half4 plane, half feather)
+{
+	half x = plane.w - dot(worldPos, plane.xyz);
+	// Compiler bug workaround
+	x += 0.0001;
+	return smoothstep(-feather, feather, x);
+}
+
+float4 _ShadowPlane0;
+float _ShadowPlaneFeather0;
+float4 _ShadowPlane1;
+float _ShadowPlaneFeather1;
+
+half ShadowPlanes(half3 worldPos)
+{
+	half att = 1;
+	att *= ShadowPlane(worldPos, _ShadowPlane0, _ShadowPlaneFeather0);
+	att *= ShadowPlane(worldPos, _ShadowPlane1, _ShadowPlaneFeather1);
+	return att;
+}
+
+struct TubeLightShadowPlane
+{
+	float4 plane0;
+	float4 plane1;
+	float feather0;
+	float feather1;
+	float padding0;
+	float padding1;
+};
+
+half ShadowPlanes(half3 worldPos, TubeLightShadowPlane params)
+{
+	half att = 1;
+	att *= ShadowPlane(worldPos, params.plane0, params.feather0);
+	att *= ShadowPlane(worldPos, params.plane1, params.feather1);
+	return att;
+}
--- a/Assets/TubeLight/Shaders/TubeLightShadowPlanes.cginc.meta
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+++ b/Assets/VolumetricFog/Editor.meta
@ -0,0 +1,9 @@
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--- a/Assets/VolumetricFog/Editor/FogLightEditor.cs
+++ b/Assets/VolumetricFog/Editor/FogLightEditor.cs
@ -0,0 +1,73 @@
+using UnityEngine;
+using UnityEditor;
+
+[CustomEditor(typeof(FogLight))]
+[CanEditMultipleObjects]
+public class FogLightEditor : Editor
+{
+	SerializedProperty m_IntensityMult;
+	SerializedProperty m_RangeMult;
+	SerializedProperty m_ForceOnForFog;
+	SerializedProperty m_Shadows;
+	SerializedProperty m_ShadowmapRes;
+	SerializedProperty m_BlurIterations;
+	SerializedProperty m_BlurSize;
+	SerializedProperty m_Bounded;
+
+	void OnEnable()
+	{
+		m_IntensityMult = serializedObject.FindProperty ("m_IntensityMult");
+		m_RangeMult = serializedObject.FindProperty ("m_RangeMult");
+		m_ForceOnForFog = serializedObject.FindProperty ("m_ForceOnForFog");
+		m_Shadows = serializedObject.FindProperty ("m_Shadows");
+		m_ShadowmapRes = serializedObject.FindProperty ("m_ShadowmapRes");
+		m_BlurIterations = serializedObject.FindProperty ("m_BlurIterations");
+		m_BlurSize = serializedObject.FindProperty ("m_BlurSize");
+		m_Bounded = serializedObject.FindProperty("m_Bounded");
+	}
+
+	override public void OnInspectorGUI()
+	{
+		serializedObject.Update();
+
+		EditorGUILayout.PropertyField(m_IntensityMult);
+		EditorGUILayout.PropertyField(m_RangeMult);
+		EditorGUILayout.PropertyField(m_ForceOnForFog);
+
+		// Section below just for light types with shadow
+		bool supportsShadows = false;
+		bool isAreaLight = false;
+		foreach (FogLight fogLight in targets)
+		{
+			if (fogLight.type == FogLight.Type.Area)
+			{
+				supportsShadows = true;
+				isAreaLight = true;
+				break;	
+			}
+			else if (fogLight.type == FogLight.Type.Directional)
+			{
+				supportsShadows = true;
+				break;
+			}
+		}
+
+		if (supportsShadows)
+		{
+			EditorGUILayout.Space();
+
+			EditorGUILayout.PropertyField(m_Shadows);
+			EditorGUILayout.PropertyField(m_ShadowmapRes);
+			EditorGUILayout.PropertyField(m_BlurIterations);
+			EditorGUILayout.PropertyField(m_BlurSize);
+		}
+
+		if (isAreaLight)
+		{
+			EditorGUILayout.Space();
+			EditorGUILayout.PropertyField(m_Bounded);
+		}
+
+		serializedObject.ApplyModifiedProperties();
+	}
+}
--- a/Assets/VolumetricFog/Editor/FogLightEditor.cs.meta
+++ b/Assets/VolumetricFog/Editor/FogLightEditor.cs.meta
@ -0,0 +1,12 @@
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--- a/Assets/VolumetricFog/FogEllipsoid.prefab
+++ b/Assets/VolumetricFog/FogEllipsoid.prefab
@ -0,0 +1,54 @@
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--- a/Assets/VolumetricFog/FogEllipsoid.prefab.meta
+++ b/Assets/VolumetricFog/FogEllipsoid.prefab.meta
@ -0,0 +1,8 @@
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--- a/Assets/VolumetricFog/Scripts.meta
+++ b/Assets/VolumetricFog/Scripts.meta
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--- a/Assets/VolumetricFog/Scripts/FogEllipsoid.cs
+++ b/Assets/VolumetricFog/Scripts/FogEllipsoid.cs
@ -0,0 +1,59 @@
+using UnityEngine;
+
+[ExecuteInEditMode]
+public class FogEllipsoid : MonoBehaviour
+{
+	public enum Blend
+	{
+		Additive,
+		Multiplicative
+	}
+
+	public Blend m_Blend = Blend.Additive;
+	public float m_Density = 1.0f;
+	[MinValue(0)]
+	public float m_Radius = 1.0f;
+	[MinValue(0)]
+	public float m_Stretch = 2.0f;
+	[Range(0, 1)]
+	public float m_Feather = 0.7f;
+	[Range(0, 1)]
+	public float m_NoiseAmount = 0.0f;
+	public float m_NoiseSpeed = 1.0f;
+	[MinValue(0)]
+	public float m_NoiseScale = 1.0f;
+
+	bool m_AddedToLightManager = false;
+
+	void AddToLightManager()
+	{
+		if (!m_AddedToLightManager)
+			m_AddedToLightManager = LightManagerFogEllipsoids.Add(this);
+	}
+
+	void OnEnable()
+	{
+		AddToLightManager();
+	}
+
+	void Update()
+	{
+		// LightManager might not have been available during this light's OnEnable(), so keep trying.
+		AddToLightManager();
+	}
+
+	void OnDisable()
+	{
+		LightManagerFogEllipsoids.Remove(this);
+		m_AddedToLightManager = false;
+	}	
+
+	void OnDrawGizmosSelected()
+	{
+		Matrix4x4 m = Matrix4x4.identity;
+		Transform t = transform;
+		m.SetTRS(t.position, t.rotation, new Vector3(1.0f, m_Stretch, 1.0f));
+		Gizmos.matrix =  m;
+		Gizmos.DrawWireSphere(Vector3.zero, m_Radius);
+	}
+}
--- a/Assets/VolumetricFog/Scripts/FogEllipsoid.cs.meta
+++ b/Assets/VolumetricFog/Scripts/FogEllipsoid.cs.meta
@ -0,0 +1,12 @@
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+  defaultReferences: []
+  executionOrder: 0
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+  userData: 
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+  assetBundleVariant: 
--- a/Assets/VolumetricFog/Scripts/FogLight.DirectionalShadow.cs
+++ b/Assets/VolumetricFog/Scripts/FogLight.DirectionalShadow.cs
@ -0,0 +1,157 @@
+using UnityEngine;
+using UnityEngine.Rendering;
+
+public partial class FogLight : LightOverride
+{
+	CommandBuffer m_BufGrabShadowmap;
+	CommandBuffer m_BufGrabShadowParams;
+	RenderTexture m_Shadowmap;
+
+	ComputeBuffer m_ShadowParamsCB;
+	//[HideInInspector]
+	public Shader m_BlurShadowmapShader;
+	Material m_BlurShadowmapMaterial;
+
+	public Shader m_CopyShadowParamsShader;
+	Material m_CopyShadowParamsMaterial;
+
+	bool directionalShadow {get{ return m_Shadows && type == Type.Directional; }}
+
+	void InitDirectionalShadowmap()
+	{
+		if (m_BufGrabShadowmap != null || !directionalShadow)
+			return;
+
+		Light light = GetComponent<Light>();
+
+		m_BufGrabShadowmap = new CommandBuffer();
+		m_BufGrabShadowmap.name = "Grab shadowmap for Volumetric Fog";
+		light.AddCommandBuffer(LightEvent.AfterShadowMap, m_BufGrabShadowmap);
+
+		m_BufGrabShadowParams = new CommandBuffer();
+		m_BufGrabShadowParams.name = "Grab shadow params for Volumetric Fog";
+		light.AddCommandBuffer(LightEvent.BeforeScreenspaceMask, m_BufGrabShadowParams);
+
+		m_BlurShadowmapMaterial = new Material(m_BlurShadowmapShader);
+		m_BlurShadowmapMaterial.hideFlags = HideFlags.HideAndDontSave;
+
+		m_CopyShadowParamsMaterial = new Material(m_CopyShadowParamsShader);
+		m_CopyShadowParamsMaterial.hideFlags = HideFlags.HideAndDontSave;
+	}
+
+	int[] temp;
+
+	public void UpdateDirectionalShadowmap()
+	{
+		InitDirectionalShadowmap();
+
+		if (m_BufGrabShadowmap != null)
+			m_BufGrabShadowmap.Clear();
+		if (m_BufGrabShadowParams != null)
+			m_BufGrabShadowParams.Clear();
+
+		if (!directionalShadow)
+			return;
+
+		// Copy directional shadowmap params - they're only set for regular shaders, but we need them in compute
+		if (m_ShadowParamsCB == null)
+			m_ShadowParamsCB = new ComputeBuffer(1, 336);
+		Graphics.SetRandomWriteTarget(2, m_ShadowParamsCB);
+		m_BufGrabShadowParams.DrawProcedural(Matrix4x4.identity, m_CopyShadowParamsMaterial, 0, MeshTopology.Points, 1);
+
+		// TODO: get the real size of the shadowmap
+		int startRes = 4096;
+		// To make things easier, blurred shadowmap is at most half the size of the regular.
+		int targetRes = Mathf.Min((int)m_ShadowmapRes, startRes/2);
+		int downsampleSteps = (int)Mathf.Log(startRes / targetRes, 2);
+
+		RenderTargetIdentifier shadowmap = BuiltinRenderTextureType.CurrentActive;
+		m_BufGrabShadowmap.SetShadowSamplingMode(shadowmap, ShadowSamplingMode.RawDepth);
+
+		// RFloat for ESM, RGHalf for VSM
+		RenderTextureFormat format = RenderTextureFormat.RGHalf;
+
+		ReleaseTemporary(ref m_Shadowmap);
+		m_Shadowmap = RenderTexture.GetTemporary(targetRes, targetRes, 0, format, RenderTextureReadWrite.Linear);
+		m_Shadowmap.filterMode = FilterMode.Bilinear;
+		m_Shadowmap.wrapMode = TextureWrapMode.Clamp;
+
+		if (temp == null || temp.Length != downsampleSteps - 1)
+			temp = new int[downsampleSteps - 1];
+
+		for (int i = 0, currentRes = startRes/2; i < downsampleSteps; i++)
+		{
+			m_BufGrabShadowmap.SetGlobalVector("_TexelSize", new Vector4(0.5f/currentRes, 0.5f/currentRes, 0, 0));
+			
+			RenderTargetIdentifier targetRT;
+
+			if (i < downsampleSteps - 1)
+			{
+				temp[i] = Shader.PropertyToID("ShadowmapDownscaleTemp" + i);
+				m_BufGrabShadowmap.GetTemporaryRT(temp[i], currentRes, currentRes, 0, FilterMode.Bilinear, format, RenderTextureReadWrite.Linear);
+				targetRT = new RenderTargetIdentifier(temp[i]);
+			}
+			else
+			{
+				// Last step: write into the shadowmap texture
+				targetRT = new RenderTargetIdentifier(m_Shadowmap);
+			}
+
+			if (i == 0)
+			{
+				// This step should convert to ESM/VSM
+				// m_BufGrabShadowmap.Blit(shadowmap, targetRT);
+				m_BufGrabShadowmap.SetGlobalTexture("_DirShadowmap", shadowmap);
+				m_BufGrabShadowmap.Blit(null, targetRT, m_BlurShadowmapMaterial, /*sample & convert to VSM*/ 4);
+			}
+			else
+			{
+				m_BufGrabShadowmap.Blit(temp[i - 1], targetRT, m_BlurShadowmapMaterial, /*regular sample*/ 5);
+			}
+
+			currentRes /= 2;
+		}
+
+		//var directionalShadowmapBlurred = Shader.PropertyToID("_DirectionalShadowmapBlurred");
+		//m_BufGrabShadowmap.GetTemporaryRT(directionalShadowmapBlurred, 1024, 1024, 0, FilterMode.Bilinear, RenderTextureFormat.RFloat, RenderTextureReadWrite.Linear);
+		//m_BufGrabShadowmap.Blit(shadowmap, m_Shadowmap);
+		//m_BufGrabShadowmap.SetGlobalTexture(directionalShadowmapBlurred, directionalShadowmapBlurred);
+	}
+
+	void CleanupDirectionalShadowmap()
+	{
+		if (m_BufGrabShadowmap != null)
+			m_BufGrabShadowmap.Clear();
+
+		if (m_BufGrabShadowParams != null)
+			m_BufGrabShadowParams.Clear();
+
+		if(m_ShadowParamsCB != null)
+			m_ShadowParamsCB.Release();
+		m_ShadowParamsCB = null;
+	}
+
+	public bool SetUpDirectionalShadowmapForSampling(bool shadows, ComputeShader cs, int kernel)
+	{
+		if (!shadows || m_ShadowParamsCB == null || m_Shadowmap == null)
+		{
+			cs.SetFloat("_DirLightShadows", 0);
+			return false;
+		}
+
+		cs.SetFloat("_DirLightShadows", 1);
+		cs.SetBuffer(kernel, "_ShadowParams", m_ShadowParamsCB);
+		cs.SetTexture(kernel, "_DirectionalShadowmap", m_Shadowmap);
+
+		return true;
+	}
+
+	void ReleaseTemporary(ref RenderTexture rt)
+	{
+		if (rt == null)
+			return;
+
+		RenderTexture.ReleaseTemporary(rt);
+		rt = null;
+	}
+}
--- a/Assets/VolumetricFog/Scripts/FogLight.DirectionalShadow.cs.meta
+++ b/Assets/VolumetricFog/Scripts/FogLight.DirectionalShadow.cs.meta
@ -0,0 +1,12 @@
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--- a/Assets/VolumetricFog/Scripts/FogLight.cs
+++ b/Assets/VolumetricFog/Scripts/FogLight.cs
@ -0,0 +1,60 @@
+using UnityEngine;
+
+[ExecuteInEditMode]
+public partial class FogLight : LightOverride
+{
+	public bool m_ForceOnForFog = false;
+	[Tooltip("Only one shadowed fog AreaLight at a time.")]
+	[Header("Shadows")]
+	public bool m_Shadows = false;
+
+	public enum TextureSize
+	{
+		x256 = 256,
+		x512 = 512,
+		x1024 = 1024,
+	}
+
+	[Tooltip("Always at most half the res of the AreaLight's shadowmap.")]
+	public TextureSize m_ShadowmapRes = TextureSize.x256;
+	[Range(0, 3)]
+	public int m_BlurIterations = 0;
+	[MinValue(0)]
+	public float m_BlurSize = 1.0f;
+	[MinValue(0)]
+	[Tooltip("Affects shadow softness.")]
+	public float m_ESMExponent = 40.0f;
+
+	public bool m_Bounded = true;
+
+	public override bool GetForceOn()
+	{
+		return m_ForceOnForFog;
+	}
+
+	bool m_AddedToLightManager = false;
+
+	void AddToLightManager()
+	{
+		if (!m_AddedToLightManager)
+			m_AddedToLightManager = LightManagerFogLights.Add(this);
+	}
+
+	void OnEnable()
+	{
+		AddToLightManager();
+	}
+
+	void Update()
+	{
+		// LightManager might not have been available during this light's OnEnable(), so keep trying.
+		AddToLightManager();
+	}
+
+	void OnDisable()
+	{
+		LightManagerFogLights.Remove(this);
+		m_AddedToLightManager = false;
+		CleanupDirectionalShadowmap();
+	}
+}
--- a/Assets/VolumetricFog/Scripts/FogLight.cs.meta
+++ b/Assets/VolumetricFog/Scripts/FogLight.cs.meta
@ -0,0 +1,16 @@
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+  serializedVersion: 2
+  defaultReferences:
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+      type: 3}
+  - m_CopyShadowParamsShader: {fileID: 4800000, guid: 33fc45db43408764c8dd7647b877e561,
+      type: 3}
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--- a/Assets/VolumetricFog/Scripts/VolumetricFog.cs
+++ b/Assets/VolumetricFog/Scripts/VolumetricFog.cs
@ -0,0 +1,719 @@
+using UnityEngine;
+using UnityEngine.Serialization;
+using System.Collections.Generic;
+
+[ExecuteInEditMode]
+[RequireComponent (typeof(Camera))]
+public class VolumetricFog : MonoBehaviour
+{
+	Material m_DebugMaterial;
+	[HideInInspector]
+	public Shader m_DebugShader;
+	[HideInInspector]
+	public Shader m_ShadowmapShader;
+	[HideInInspector]
+	public ComputeShader m_InjectLightingAndDensity;
+	[HideInInspector]
+	public ComputeShader m_Scatter;
+	Material m_ApplyToOpaqueMaterial;
+	[HideInInspector]
+	public Shader m_ApplyToOpaqueShader;
+	Material m_BlurShadowmapMaterial;
+	[HideInInspector]
+	public Shader m_BlurShadowmapShader;
+	[HideInInspector]
+	public Texture2D m_Noise;
+	[HideInInspector]
+	public bool m_Debug = false;
+	[HideInInspector]
+	[Range(0.0f, 1.0f)]
+	public float m_Z = 1.0f;
+
+	[Header("Size")]
+	[MinValue(0.1f)]
+	public float m_NearClip = 0.1f;
+	[MinValue(0.1f)]
+	public float m_FarClipMax = 100.0f;
+
+	[Header("Fog Density")]
+	[FormerlySerializedAs("m_Density")]
+	public float m_GlobalDensityMult = 1.0f;
+	Vector3i m_InjectNumThreads = new Vector3i(16, 2, 16);
+	Vector3i m_ScatterNumThreads = new Vector3i(32, 2, 1);
+	RenderTexture m_VolumeInject;
+	RenderTexture m_VolumeScatter;
+	Vector3i m_VolumeResolution = new Vector3i(160, 90, 128);
+	Camera m_Camera;
+	Camera m_ShadowmapCamera;
+	RenderTexture m_Shadowmap;
+	RenderTexture m_ShadowmapBlurred;
+	int m_ShadowmapRes = 1024;
+
+	// Density
+	public float m_ConstantFog = 0;
+	public float m_HeightFogAmount = 0;
+	public float m_HeightFogExponent = 0;
+	public float m_HeightFogOffset = 0;
+
+	[Tooltip("Noise multiplies with constant fog and height fog, but not with fog ellipsoids.")]
+	[Range(0.0f, 1.0f)]
+	public float m_NoiseFogAmount = 0;
+	public float m_NoiseFogScale = 1;
+	public Wind m_Wind;
+
+	[Range(0.0f, 0.999f)]
+	public float m_Anisotropy = 0.0f;
+
+	[Header("Lights")]
+	[FormerlySerializedAs("m_Intensity")]
+	public float m_GlobalIntensityMult = 1.0f;
+	[MinValue(0)]
+	public float m_AmbientLightIntensity = 0.0f;
+	public Color m_AmbientLightColor = Color.white;
+
+	[HideInInspector]
+	public bool m_BlurShadowmap = false;
+	[HideInInspector]
+	[Range(0, 2)]
+	public int m_ShadowmapDownsample = 1;
+	[HideInInspector]
+	[Range(0.0f, 10.0f)]
+	public float m_BlurSize = 3.0f;
+	[HideInInspector]
+	[Range(1, 4)]
+	public int m_BlurIterations = 2;
+
+	struct Vector3i
+	{
+		public int x, y, z;
+		public Vector3i(int x, int y, int z)
+		{
+			this.x = x;
+			this.y = y;
+			this.z = z;
+		}
+	}
+
+	struct PointLightParams
+	{
+		public Vector3 pos;
+		public float range;
+		public Vector3 color;
+		float padding;
+	}
+
+	PointLightParams[] m_PointLightParams;
+	ComputeBuffer m_PointLightParamsCB;
+
+	struct TubeLightParams
+	{
+		public Vector3 start;
+		public float range;
+		public Vector3 end;
+		public float radius;
+		public Vector3 color;
+		float padding;
+	}
+
+	TubeLightParams[] m_TubeLightParams;
+	ComputeBuffer m_TubeLightParamsCB;
+
+	struct TubeLightShadowPlaneParams
+	{
+		public Vector4 plane0;
+		public Vector4 plane1;
+		public float feather0;
+		public float feather1;
+		float padding0;
+		float padding1;
+	}
+
+	TubeLightShadowPlaneParams[] m_TubeLightShadowPlaneParams;
+	ComputeBuffer m_TubeLightShadowPlaneParamsCB;
+
+	struct AreaLightParams
+	{
+		public Matrix4x4 mat;
+		public Vector4 pos;
+		public Vector3 color;
+		public float bounded;
+	}
+
+	AreaLightParams[] m_AreaLightParams;
+	ComputeBuffer m_AreaLightParamsCB;
+
+	struct FogEllipsoidParams
+	{
+		public Vector3 pos;
+		public float radius;
+		public Vector3 axis;
+		public float stretch;
+		public float density;
+		public float noiseAmount;
+		public float noiseSpeed;
+		public float noiseScale;
+		public float feather;
+		public float blend;
+		public float padding1;
+		public float padding2;
+	}
+
+	FogEllipsoidParams[] m_FogEllipsoidParams;
+	ComputeBuffer m_FogEllipsoidParamsCB;
+
+	Camera cam{ get { if (m_Camera == null) m_Camera = GetComponent<Camera>(); return m_Camera; }}
+
+	float nearClip { get { return Mathf.Max(0, m_NearClip); } }
+	float farClip { get { return Mathf.Min(cam.farClipPlane, m_FarClipMax); } }
+
+	void ReleaseComputeBuffer(ref ComputeBuffer buffer)
+	{
+		if(buffer != null)
+			buffer.Release();
+		buffer = null;
+	}
+
+	void OnDestroy()
+	{
+		Cleanup();
+	}
+
+	void OnDisable()
+	{
+		Cleanup();
+	}
+
+	void Cleanup()
+	{
+		DestroyImmediate(m_VolumeInject);
+		DestroyImmediate(m_VolumeScatter);
+		ReleaseComputeBuffer(ref m_PointLightParamsCB);
+		ReleaseComputeBuffer(ref m_TubeLightParamsCB);
+		ReleaseComputeBuffer(ref m_TubeLightShadowPlaneParamsCB);
+		ReleaseComputeBuffer(ref m_AreaLightParamsCB);
+		ReleaseComputeBuffer(ref m_FogEllipsoidParamsCB);
+		m_VolumeInject = null;
+		m_VolumeScatter = null;
+	}
+
+	void SanitizeInput()
+	{
+		m_GlobalDensityMult = Mathf.Max(m_GlobalDensityMult, 0);
+		m_ConstantFog = Mathf.Max(m_ConstantFog, 0);
+		m_HeightFogAmount = Mathf.Max(m_HeightFogAmount, 0);
+	}
+
+	void SetUpPointLightBuffers(int kernel)
+	{
+		int count = m_PointLightParamsCB == null ? 0 : m_PointLightParamsCB.count;
+		m_InjectLightingAndDensity.SetFloat("_PointLightsCount", count);
+		if (count == 0)
+			return;
+
+		if (m_PointLightParams == null || m_PointLightParams.Length != count)
+			m_PointLightParams = new PointLightParams[count];
+
+		HashSet<FogLight> fogLights = LightManagerFogLights.Get();
+
+		int j = 0;
+		for (var x = fogLights.GetEnumerator(); x.MoveNext();)
+		{
+			var fl = x.Current;
+			if (fl == null || fl.type != FogLight.Type.Point || !fl.isOn)
+				continue;
+
+			Light light = fl.light;
+			m_PointLightParams[j].pos = light.transform.position;
+			float range = light.range * fl.m_RangeMult;
+			m_PointLightParams[j].range = 1.0f / (range * range);
+			m_PointLightParams[j].color = new Vector3(light.color.r, light.color.g, light.color.b) * light.intensity * fl.m_IntensityMult;
+			j++;
+		}
+
+		// TODO: try a constant buffer with setfloats instead for perf
+		m_PointLightParamsCB.SetData(m_PointLightParams);
+		m_InjectLightingAndDensity.SetBuffer(kernel, "_PointLights", m_PointLightParamsCB);
+	}
+
+	TubeLightShadowPlane.Params[] sppArr;
+
+	void SetUpTubeLightBuffers(int kernel)
+	{
+		int count = m_TubeLightParamsCB == null ? 0 : m_TubeLightParamsCB.count;
+		m_InjectLightingAndDensity.SetFloat("_TubeLightsCount", count);
+		if (count == 0)
+			return;
+
+		if (m_TubeLightParams == null || m_TubeLightParams.Length != count)
+			m_TubeLightParams = new TubeLightParams[count];
+
+		if (m_TubeLightShadowPlaneParams == null || m_TubeLightShadowPlaneParams.Length != count)
+			m_TubeLightShadowPlaneParams = new TubeLightShadowPlaneParams[count];
+
+		HashSet<FogLight> fogLights = LightManagerFogLights.Get();
+
+		int j = 0;
+		for (var x = fogLights.GetEnumerator(); x.MoveNext();)
+		{
+			var fl = x.Current;
+			if (fl == null || fl.type != FogLight.Type.Tube || !fl.isOn)
+				continue;
+
+			TubeLight light = fl.tubeLight;
+			Transform t = light.transform;
+			Vector3 pos = t.position;
+			Vector3 halfLength = 0.5f * t.up * light.m_Length;
+
+			// Tube lights
+			m_TubeLightParams[j].start = pos + halfLength;
+			m_TubeLightParams[j].end = pos - halfLength;
+			float range = light.m_Range * fl.m_RangeMult;
+			m_TubeLightParams[j].range = 1.0f / (range * range);
+			m_TubeLightParams[j].color = new Vector3(light.m_Color.r, light.m_Color.g, light.m_Color.b) * light.m_Intensity * fl.m_IntensityMult;
+			m_TubeLightParams[j].radius = light.m_Radius;
+
+			// Tube light shadow planes
+			var p = light.GetShadowPlaneParams(ref sppArr);
+			m_TubeLightShadowPlaneParams[j].plane0 = p[0].plane;
+			m_TubeLightShadowPlaneParams[j].plane1 = p[1].plane;
+			m_TubeLightShadowPlaneParams[j].feather0 = p[0].feather;
+			m_TubeLightShadowPlaneParams[j].feather1 = p[1].feather;
+
+			j++;
+		}
+
+		m_TubeLightParamsCB.SetData(m_TubeLightParams);
+		m_InjectLightingAndDensity.SetBuffer(kernel, "_TubeLights", m_TubeLightParamsCB);
+		m_TubeLightShadowPlaneParamsCB.SetData(m_TubeLightShadowPlaneParams);
+		m_InjectLightingAndDensity.SetBuffer(kernel, "_TubeLightShadowPlanes", m_TubeLightShadowPlaneParamsCB);
+	}
+
+	void SetUpAreaLightBuffers(int kernel)
+	{
+		int count = m_AreaLightParamsCB == null ? 0 : m_AreaLightParamsCB.count;
+		m_InjectLightingAndDensity.SetFloat("_AreaLightsCount", count);
+		if (count == 0)
+			return;
+
+		if (m_AreaLightParams == null || m_AreaLightParams.Length != count)
+			m_AreaLightParams = new AreaLightParams[count];
+
+		HashSet<FogLight> fogLights = LightManagerFogLights.Get();
+
+		int shadowedAreaLightIndex = fogLights.Count;
+		int j = 0;
+		for (var x = fogLights.GetEnumerator(); x.MoveNext();)
+		{
+			var fl = x.Current;
+			if (fl == null || fl.type != FogLight.Type.Area || !fl.isOn)
+				continue;
+
+			AreaLight light = fl.areaLight;
+
+			m_AreaLightParams[j].mat = light.GetProjectionMatrix(true);
+			m_AreaLightParams[j].pos = light.GetPosition();
+			m_AreaLightParams[j].color = new Vector3(light.m_Color.r, light.m_Color.g, light.m_Color.b) * light.m_Intensity * fl.m_IntensityMult;
+			m_AreaLightParams[j].bounded = fl.m_Bounded ? 1 : 0;
+
+			if (fl.m_Shadows)
+			{
+				RenderTexture shadowmap = light.GetBlurredShadowmap();
+				if (shadowmap != null)
+				{
+					m_InjectLightingAndDensity.SetTexture(kernel, "_AreaLightShadowmap", shadowmap);
+					m_InjectLightingAndDensity.SetFloat("_ESMExponentAreaLight", fl.m_ESMExponent);
+					shadowedAreaLightIndex = j;
+				}
+			}
+
+			j++;
+		}
+
+		m_AreaLightParamsCB.SetData(m_AreaLightParams);
+		m_InjectLightingAndDensity.SetBuffer(kernel, "_AreaLights", m_AreaLightParamsCB);
+		m_InjectLightingAndDensity.SetFloat("_ShadowedAreaLightIndex", shadowedAreaLightIndex);
+	}
+
+	void SetUpFogEllipsoidBuffers(int kernel)
+	{
+		int count = 0;
+		HashSet<FogEllipsoid> fogEllipsoids = LightManagerFogEllipsoids.Get();
+		for (var x = fogEllipsoids.GetEnumerator(); x.MoveNext();) {
+			var fe = x.Current;
+			if (fe != null && fe.enabled && fe.gameObject.activeSelf)
+				count++;
+		}
+
+		m_InjectLightingAndDensity.SetFloat("_FogEllipsoidsCount", count);
+		if (count == 0)
+			return;
+
+		if (m_FogEllipsoidParams == null || m_FogEllipsoidParams.Length != count)
+			m_FogEllipsoidParams = new FogEllipsoidParams[count];
+
+		int j = 0;
+		for (var x = fogEllipsoids.GetEnumerator(); x.MoveNext();)
+		{
+			var fe = x.Current;
+			if (fe == null || !fe.enabled || !fe.gameObject.activeSelf)
+				continue;
+
+			Transform t = fe.transform;
+
+			m_FogEllipsoidParams[j].pos = t.position;
+			m_FogEllipsoidParams[j].radius = fe.m_Radius * fe.m_Radius;
+			m_FogEllipsoidParams[j].axis = -t.up;
+			m_FogEllipsoidParams[j].stretch = 1.0f/fe.m_Stretch - 1.0f;
+			m_FogEllipsoidParams[j].density = fe.m_Density;
+			m_FogEllipsoidParams[j].noiseAmount = fe.m_NoiseAmount;
+			m_FogEllipsoidParams[j].noiseSpeed = fe.m_NoiseSpeed;
+			m_FogEllipsoidParams[j].noiseScale = fe.m_NoiseScale;
+			m_FogEllipsoidParams[j].feather = 1.0f - fe.m_Feather;
+			m_FogEllipsoidParams[j].blend = fe.m_Blend == FogEllipsoid.Blend.Additive ? 0 : 1;
+			j++;
+		}
+
+		m_FogEllipsoidParamsCB.SetData(m_FogEllipsoidParams);
+		m_InjectLightingAndDensity.SetBuffer(kernel, "_FogEllipsoids", m_FogEllipsoidParamsCB);
+	}
+
+	FogLight GetDirectionalLight()
+	{
+		HashSet<FogLight> fogLights = LightManagerFogLights.Get();
+		FogLight fogLight = null;
+
+		for (var x = fogLights.GetEnumerator(); x.MoveNext();)
+		{
+			var fl = x.Current;
+			if (fl == null || fl.type != FogLight.Type.Directional || !fl.isOn)
+				continue;
+
+			fogLight = fl;
+			break;
+		}
+
+		return fogLight;
+	}
+
+	FogLight m_DirectionalLight;
+
+	void OnPreRender()
+	{
+		m_DirectionalLight = GetDirectionalLight();
+
+		if (m_DirectionalLight != null)
+			m_DirectionalLight.UpdateDirectionalShadowmap();
+	}
+
+	float[] m_dirLightColor;
+	float[] m_dirLightDir;
+
+	void SetUpDirectionalLight(int kernel)
+	{
+		if (m_dirLightColor == null || m_dirLightColor.Length != 3)
+			m_dirLightColor = new float[3];
+		if (m_dirLightDir == null || m_dirLightDir.Length != 3)
+			m_dirLightDir = new float[3];
+
+		if (m_DirectionalLight == null)
+		{
+			m_dirLightColor[0] = 0;
+			m_dirLightColor[1] = 0;
+			m_dirLightColor[2] = 0;
+			m_InjectLightingAndDensity.SetFloats("_DirLightColor", m_dirLightColor);
+			return;
+		}
+
+		m_DirectionalLight.SetUpDirectionalShadowmapForSampling(m_DirectionalLight.m_Shadows, m_InjectLightingAndDensity, kernel);
+		// TODO: if above fails, disable shadows
+
+		Light light = m_DirectionalLight.light;
+		Vector4 color = light.color;
+		color *= light.intensity * m_DirectionalLight.m_IntensityMult;
+		m_dirLightColor[0] = color.x;
+		m_dirLightColor[1] = color.y;
+		m_dirLightColor[2] = color.z;
+		m_InjectLightingAndDensity.SetFloats("_DirLightColor", m_dirLightColor);
+		Vector3 dir = light.GetComponent<Transform>().forward;
+		m_dirLightDir[0] = dir.x;
+		m_dirLightDir[1] = dir.y;
+		m_dirLightDir[2] = dir.z;
+		m_InjectLightingAndDensity.SetFloats("_DirLightDir", m_dirLightDir);
+		
+	}
+
+	float[] m_fogParams;
+	float[] m_windDir;
+	float[] m_ambientLight;
+
+	void SetUpForScatter(int kernel)
+	{
+		SanitizeInput();
+		InitResources();
+		SetFrustumRays();
+		
+		// Compensate for more light and density being injected in per world space meter when near and far are closer.
+		// TODO: Not quite correct yet.
+		float depthCompensation = (farClip - nearClip) * 0.01f;
+		m_InjectLightingAndDensity.SetFloat("_Density", m_GlobalDensityMult * 0.001f * depthCompensation);
+		m_InjectLightingAndDensity.SetFloat("_Intensity", m_GlobalIntensityMult);
+		m_InjectLightingAndDensity.SetFloat("_Anisotropy", m_Anisotropy);
+		m_InjectLightingAndDensity.SetTexture(kernel, "_VolumeInject", m_VolumeInject);
+		m_InjectLightingAndDensity.SetTexture(kernel, "_Shadowmap", m_BlurShadowmap ? m_ShadowmapBlurred : (m_Shadowmap != null ? m_Shadowmap : (Texture)Texture2D.whiteTexture));
+		m_InjectLightingAndDensity.SetTexture(kernel, "_Noise", m_Noise);
+
+		if (m_fogParams == null || m_fogParams.Length != 4)
+			m_fogParams = new float[4];
+		if (m_windDir == null || m_windDir.Length != 3)
+			m_windDir = new float[3];
+		if (m_ambientLight == null || m_ambientLight.Length != 3)
+			m_ambientLight = new float[3];
+		m_fogParams[0] = m_ConstantFog;
+		m_fogParams[1] = m_HeightFogExponent;
+		m_fogParams[2] = m_HeightFogOffset;
+		m_fogParams[3] = m_HeightFogAmount;
+
+		m_InjectLightingAndDensity.SetFloats("_FogParams", m_fogParams);
+		m_InjectLightingAndDensity.SetFloat("_NoiseFogAmount", m_NoiseFogAmount);
+		m_InjectLightingAndDensity.SetFloat("_NoiseFogScale", m_NoiseFogScale);
+		m_InjectLightingAndDensity.SetFloat("_WindSpeed", m_Wind == null ? 0 : m_Wind.m_Speed);
+		Vector3 windDir = m_Wind == null ? Vector3.forward : m_Wind.transform.forward;
+		m_windDir[0] = windDir.x;
+		m_windDir[1] = windDir.y;
+		m_windDir[2] = windDir.z;
+		m_InjectLightingAndDensity.SetFloats("_WindDir", m_windDir);
+		m_InjectLightingAndDensity.SetFloat("_Time", Time.time);
+		m_InjectLightingAndDensity.SetFloat("_NearOverFarClip", nearClip/farClip);
+		Color ambient = m_AmbientLightColor * m_AmbientLightIntensity * 0.1f;
+		m_ambientLight[0] = ambient.r;
+		m_ambientLight[1] = ambient.g;
+		m_ambientLight[2] = ambient.b;
+		m_InjectLightingAndDensity.SetFloats("_AmbientLight", m_ambientLight);
+
+		SetUpPointLightBuffers(kernel);
+		SetUpTubeLightBuffers(kernel);
+		SetUpAreaLightBuffers(kernel);
+		SetUpFogEllipsoidBuffers(kernel);
+		SetUpDirectionalLight(kernel);
+	}
+
+	void Scatter()
+	{
+		// Inject lighting and density
+		int kernel = 0;
+
+		SetUpForScatter(kernel);
+
+		m_InjectLightingAndDensity.Dispatch(kernel, m_VolumeResolution.x/m_InjectNumThreads.x, m_VolumeResolution.y/m_InjectNumThreads.y, m_VolumeResolution.z/m_InjectNumThreads.z);
+
+		// Solve scattering
+		m_Scatter.SetTexture(0, "_VolumeInject", m_VolumeInject);
+		m_Scatter.SetTexture(0, "_VolumeScatter", m_VolumeScatter);
+		m_Scatter.Dispatch(0, m_VolumeResolution.x/m_ScatterNumThreads.x, m_VolumeResolution.y/m_ScatterNumThreads.y, 1);
+
+		ReleaseTempResources();
+	}
+
+	void DebugDisplay(RenderTexture src, RenderTexture dest)
+	{
+		InitMaterial(ref m_DebugMaterial, m_DebugShader);
+
+		m_DebugMaterial.SetTexture("_VolumeInject", m_VolumeInject);
+		m_DebugMaterial.SetTexture("_VolumeScatter", m_VolumeScatter);
+		m_DebugMaterial.SetTexture("_Shadowmap", m_Shadowmap);
+		m_DebugMaterial.SetTexture("_ShadowmapBlurred", m_ShadowmapBlurred);
+		m_DebugMaterial.SetFloat("_Z", m_Z);
+
+		m_DebugMaterial.SetTexture("_MainTex", src);
+
+		Graphics.Blit(src, dest, m_DebugMaterial);
+	}
+
+	void SetUpGlobalFogSamplingUniforms(int width, int height)
+	{
+		Shader.SetGlobalTexture("_VolumeScatter", m_VolumeScatter);
+		Shader.SetGlobalVector("_Screen_TexelSize", new Vector4(1.0f / width, 1.0f / height, width, height));
+		Shader.SetGlobalVector("_VolumeScatter_TexelSize", new Vector4(1.0f / m_VolumeResolution.x, 1.0f / m_VolumeResolution.y, 1.0f / m_VolumeResolution.z, 0));
+		Shader.SetGlobalFloat("_CameraFarOverMaxFar", cam.farClipPlane / farClip);
+		Shader.SetGlobalFloat("_NearOverFarClip", nearClip / farClip);
+	}
+
+	[ImageEffectOpaque]
+	void OnRenderImage(RenderTexture src, RenderTexture dest)
+	{
+		if(m_Debug)
+		{
+			DebugDisplay(src, dest);
+			return;
+		}
+
+		Scatter();
+
+		InitMaterial(ref m_ApplyToOpaqueMaterial, m_ApplyToOpaqueShader);
+
+		// TODO: This shouldn't be needed. Is it because the shader doesn't have the Property block?
+		m_ApplyToOpaqueMaterial.SetTexture("_MainTex", src);
+
+		SetUpGlobalFogSamplingUniforms(src.width, src.height);
+
+		Graphics.Blit(src, dest, m_ApplyToOpaqueMaterial);
+
+		VolumetricFogInForward(true);
+	}
+
+	void OnPostRender()
+	{
+		VolumetricFogInForward(false);	
+	}
+
+	void VolumetricFogInForward(bool enable)
+	{
+		if (enable)
+			Shader.EnableKeyword("VOLUMETRIC_FOG");
+		else
+			Shader.DisableKeyword("VOLUMETRIC_FOG");
+	}
+
+	Vector3 ViewportToLocalPoint(Camera c, Transform t, Vector3 p)
+	{
+		// TODO: viewporttoworldpoint inverts the clip-to-world matrix every time without caching it.
+		return t.InverseTransformPoint(c.ViewportToWorldPoint(p));
+	}
+
+	static readonly Vector2[] frustumUVs = 
+		new Vector2[] {new Vector2(0, 0), new Vector2(1, 0), new Vector2(1, 1), new Vector2(0, 1)};
+	static float[] frustumRays = new float[16];
+
+	void SetFrustumRays()
+	{
+		float far = farClip;
+		Vector3 cameraPos = cam.transform.position;
+		Vector2[] uvs = frustumUVs;
+
+		for (int i = 0; i < 4; i++)
+		{
+			Vector3 ray = cam.ViewportToWorldPoint(new Vector3(uvs[i].x, uvs[i].y, far)) - cameraPos;
+			frustumRays[i*4+0] = ray.x;
+			frustumRays[i*4+1] = ray.y;
+			frustumRays[i*4+2] = ray.z;
+			frustumRays[i*4+3] = 0;
+		}
+
+		m_InjectLightingAndDensity.SetVector("_CameraPos", cameraPos);
+		m_InjectLightingAndDensity.SetFloats("_FrustumRays", frustumRays);
+	}
+
+	void InitVolume(ref RenderTexture volume)
+	{
+		if(volume)
+			return;
+
+		volume = new RenderTexture (m_VolumeResolution.x, m_VolumeResolution.y, 0, RenderTextureFormat.ARGBHalf);
+		volume.volumeDepth = m_VolumeResolution.z;
+		volume.dimension = UnityEngine.Rendering.TextureDimension.Tex3D;
+		volume.enableRandomWrite = true;
+		volume.Create();
+	}
+
+	void CreateBuffer(ref ComputeBuffer buffer, int count, int stride)
+	{
+		if (buffer != null && buffer.count == count)
+			return;
+
+		if(buffer != null)
+		{
+			buffer.Release();
+			buffer = null;
+		}
+
+		if (count <= 0)
+			return;
+
+		buffer = new ComputeBuffer(count, stride);
+	}
+
+	void InitResources ()
+	{
+		// Shadowmap
+		m_Shadowmap = RenderTexture.GetTemporary(m_ShadowmapRes, m_ShadowmapRes, 24, RenderTextureFormat.RFloat);
+		m_Shadowmap.filterMode = FilterMode.Bilinear;
+		m_Shadowmap.wrapMode = TextureWrapMode.Clamp;
+
+		// Volume
+		InitVolume(ref m_VolumeInject);
+		InitVolume(ref m_VolumeScatter);
+
+
+		// Compute buffers
+		int pointLightCount = 0, tubeLightCount = 0, areaLightCount = 0;
+		HashSet<FogLight> fogLights = LightManagerFogLights.Get();
+		for (var x = fogLights.GetEnumerator(); x.MoveNext();)
+		{
+			var fl = x.Current;
+			if (fl == null)
+				continue;
+
+			bool isOn = fl.isOn;
+
+			switch(fl.type)
+			{
+				case FogLight.Type.Point: 	if (isOn) pointLightCount++; break;
+				case FogLight.Type.Tube: 	if (isOn) tubeLightCount++; break;
+				case FogLight.Type.Area: 	if (isOn) areaLightCount++; break;
+			}
+		}
+
+		// PointLightParams {float3 float float3 float} -> 32 bytes
+		CreateBuffer(ref m_PointLightParamsCB, pointLightCount, 32);
+
+		// TubeLightParams {float3 float float3 float float3 float} -> 48 bytes
+		CreateBuffer(ref m_TubeLightParamsCB, tubeLightCount, 48);
+
+		// TubeLightShadowPlaneParams {float4 float4 float float float float} -> 48 bytes
+		CreateBuffer(ref m_TubeLightShadowPlaneParamsCB, tubeLightCount, 48);
+
+		// TubeLightParams {float4x4 float4 float3 float} -> 96 bytes
+		CreateBuffer(ref m_AreaLightParamsCB, areaLightCount, 96);
+
+		// FogEllipsoidParams {float3 float float3 9xfloat} -> 64 bytes
+		HashSet<FogEllipsoid> fogEllipsoids = LightManagerFogEllipsoids.Get();
+		CreateBuffer(ref m_FogEllipsoidParamsCB, fogEllipsoids == null ? 0 : fogEllipsoids.Count, 64);
+	}
+
+	void ReleaseTemporary(ref RenderTexture rt)
+	{
+		if (rt == null)
+			return;
+
+		RenderTexture.ReleaseTemporary(rt);
+		rt = null;
+	}
+
+	void ReleaseTempResources()
+	{
+		ReleaseTemporary(ref m_Shadowmap);
+		ReleaseTemporary(ref m_ShadowmapBlurred);
+	}
+
+	void InitMaterial(ref Material material, Shader shader)
+	{
+		if (material)
+			return;
+
+		if (!shader)
+		{
+			Debug.LogError("Missing shader");
+			return;
+		}
+
+		material = new Material(shader);
+		material.hideFlags = HideFlags.HideAndDontSave;
+	}
+
+	void OnDrawGizmosSelected()
+	{
+		Gizmos.color = Color.yellow;
+		Gizmos.matrix = transform.localToWorldMatrix;
+		Gizmos.DrawFrustum(Vector3.zero, cam.fieldOfView, farClip, nearClip, cam.aspect);
+	}
+}
--- a/Assets/VolumetricFog/Scripts/VolumetricFog.cs.meta
+++ b/Assets/VolumetricFog/Scripts/VolumetricFog.cs.meta
@ -0,0 +1,23 @@
+fileFormatVersion: 2
+guid: f35c02a2c6230584391703bf32006791
+timeCreated: 1432253353
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences:
+  - m_DebugShader: {fileID: 4800000, guid: 91e29ad407521e447a7254f5c1ea9b54, type: 3}
+  - m_ShadowmapShader: {fileID: 4800000, guid: 2c4cd42b134f7864fa579350e9cf6896, type: 3}
+  - m_InjectLightingAndDensity: {fileID: 7200000, guid: 55812fd61bd54104aa23612fc28bfeb8,
+      type: 3}
+  - m_Scatter: {fileID: 7200000, guid: 2a7c01c2354d03a4e9c31096bf130b6a, type: 3}
+  - m_ApplyToOpaqueShader: {fileID: 4800000, guid: 6f73df8e11615074dbf62a3a384af521,
+      type: 3}
+  - m_BlurShadowmapShader: {fileID: 4800000, guid: 701192b62a7678549918bc87434699fe,
+      type: 3}
+  - m_Noise: {fileID: 2800000, guid: 35eb47181d630134c97488476efbda59, type: 3}
+  - m_Sun: {instanceID: 0}
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/VolumetricFog/Shaders.meta
+++ b/Assets/VolumetricFog/Shaders.meta
@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: f9f2001f237efb348b16ef606855bab7
+folderAsset: yes
+timeCreated: 1477749236
+licenseType: Pro
+DefaultImporter:
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/VolumetricFog/Shaders/ApplyToOpaque.shader
+++ b/Assets/VolumetricFog/Shaders/ApplyToOpaque.shader
@ -0,0 +1,48 @@
+Shader "Hidden/ApplyToOpaque" {
+SubShader {
+Pass {
+	ZTest Always Cull Off ZWrite Off
+	Blend Off
+
+CGPROGRAM
+	#pragma target 3.0
+	#include "UnityCG.cginc"
+	#include "VolumetricFog.cginc"
+	#pragma vertex vert
+	#pragma fragment frag
+
+	sampler2D _CameraDepthTexture;
+	sampler2D _MainTex;
+
+	struct v2f
+	{
+		float4 pos : SV_POSITION;
+		float2 uv : TEXCOORD0;
+	};
+
+	v2f vert (appdata_img v)
+	{
+		v2f o;
+		o.pos = v.vertex;
+		o.pos.xy = o.pos.xy * 2 - 1;
+		o.uv = v.texcoord.xy;
+		
+		#if UNITY_UV_STARTS_AT_TOP
+		if (_ProjectionParams.x < 0)
+			o.uv.y = 1-o.uv.y;
+		#endif				
+		
+		return o;
+	}
+		
+	half4 frag (v2f i) : SV_Target
+	{
+		half linear01Depth = Linear01Depth(SAMPLE_DEPTH_TEXTURE(_CameraDepthTexture, i.uv));
+		half4 fog = Fog(linear01Depth, i.uv);
+		return tex2D(_MainTex, i.uv) * fog.a + fog;
+	}
+
+ENDCG
+}
+}
+}
--- a/Assets/VolumetricFog/Shaders/ApplyToOpaque.shader.meta
+++ b/Assets/VolumetricFog/Shaders/ApplyToOpaque.shader.meta
@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: 6f73df8e11615074dbf62a3a384af521
+timeCreated: 1432216767
+licenseType: Pro
+ShaderImporter:
+  defaultTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/VolumetricFog/Shaders/BlurShadowmap.shader
+++ b/Assets/VolumetricFog/Shaders/BlurShadowmap.shader
@ -0,0 +1,240 @@
+
+Shader "Hidden/BlurShadowmap" {
+	Properties
+	{
+		_MainTex ("Base (RGB)", 2D) = "white" {}
+		_Bloom ("Bloom (RGB)", 2D) = "black" {}
+	}
+	
+	CGINCLUDE
+	#include "UnityCG.cginc"
+
+	half4 _TexelSize;
+
+	struct v2f_tap
+	{
+		float4 pos : SV_POSITION;
+		half2 uv20 : TEXCOORD0;
+		half2 uv21 : TEXCOORD1;
+		half2 uv22 : TEXCOORD2;
+		half2 uv23 : TEXCOORD3;
+	};			
+
+	v2f_tap vert4Tap ( appdata_img v )
+	{
+		v2f_tap o;
+		o.pos = v.vertex;
+
+		o.uv20 = v.texcoord + _TexelSize.xy;				
+		o.uv21 = v.texcoord + _TexelSize.xy * half2(-0.5, -0.5);	
+		o.uv22 = v.texcoord + _TexelSize.xy * half2( 0.5, -0.5);		
+		o.uv23 = v.texcoord + _TexelSize.xy * half2(-0.5,  0.5);		
+
+		return o; 
+	}
+
+	// TODO: consolidate with the above, but make sure both area and dir shadows work
+	v2f_tap vert4TapDir ( appdata_img v )
+	{
+		v2f_tap o;
+		o.pos = UnityObjectToClipPos(v.vertex);
+
+		o.uv20 = v.texcoord + _TexelSize.xy;				
+		o.uv21 = v.texcoord + _TexelSize.xy * half2(-0.5, -0.5);	
+		o.uv22 = v.texcoord + _TexelSize.xy * half2( 0.5, -0.5);		
+		o.uv23 = v.texcoord + _TexelSize.xy * half2(-0.5,  0.5);		
+
+		return o; 
+	}
+
+	float4 _ZParams;
+	float _ESMExponent;
+	Texture2D _Shadowmap;
+	SamplerComparisonState sampler_Shadowmap;
+
+	// To get a sampler, which doesn't do comparison
+	Texture2D _ShadowmapDummy;
+	SamplerState sampler_ShadowmapDummy;
+
+	#define VSM 1
+
+	float4 fragDownsampleFromShadowmapFormat ( v2f_tap i ) : SV_Target
+	{
+		float4 z;
+		z.r = _Shadowmap.Sample(sampler_ShadowmapDummy, i.uv20).r;
+		z.g = _Shadowmap.Sample(sampler_ShadowmapDummy, i.uv21).r;
+		z.b = _Shadowmap.Sample(sampler_ShadowmapDummy, i.uv22).r;
+		z.a = _Shadowmap.Sample(sampler_ShadowmapDummy, i.uv23).r;
+
+		// The texture contains just 0. But we need to sample it somewhere for Unity to initialize the corresponding sampler.
+		z.r += _ShadowmapDummy.Sample(sampler_ShadowmapDummy, 0).a;
+
+		// Transform to linear z, 0 at near, 1 at far
+		z = z * 2 - 1;
+		z = _ZParams.x * (z + 1.0) / (z + _ZParams.y);	
+
+	#if VSM
+		// TODO: this is wrong. We can't average/blur z values before converting to VSM.
+		// This doesn't affect m, but affects m * m, so I should swap those two lines.
+		float m = dot(z, 0.25);
+		return float4(m, m * m, 0, 0);
+	#else
+		z = exp(_ESMExponent * z);
+		return dot(z, 0.25);
+	#endif
+	}
+
+	sampler2D _DirShadowmap;
+
+	float4 fragDownsampleFromShadowmapFormatDir ( v2f_tap i ) : SV_Target
+	{
+		float4 z;
+		z.r = tex2D (_DirShadowmap, i.uv20).r;
+		z.g = tex2D (_DirShadowmap, i.uv21).r;
+		z.b = tex2D (_DirShadowmap, i.uv22).r;
+		z.a = tex2D (_DirShadowmap, i.uv23).r;
+
+		return z.r;
+
+		// Transform to linear z, 0 at near, 1 at far
+		// z = z * 2 - 1;
+		// z = _ZParams.x * (z + 1.0) / (z + _ZParams.y);	
+
+	#if 1
+		// float m = dot(z, 0.25);
+		// return float4(m, m * m, 0, 0);
+		float4 z2 = z * z;
+		return float4(dot(z, 0.25), dot(z2, 0.25), 0, 0);
+	#else
+		//z = exp(_ESMExponent * z);
+		z = exp(40.0 * z);
+		return dot(z, 0.25);
+	#endif
+	}
+
+	sampler2D _MainTex;
+
+	float4 fragDownsample ( v2f_tap i ) : SV_Target
+	{		
+		float4 color = tex2D (_MainTex, i.uv20);
+		color += tex2D (_MainTex, i.uv21);
+		color += tex2D (_MainTex, i.uv22);
+		color += tex2D (_MainTex, i.uv23);
+		return color * 0.25;
+	}
+
+	struct v2f
+	{
+		float4 pos : SV_POSITION;
+		half4 uv : TEXCOORD0;
+		half2 offs : TEXCOORD1;
+	};
+
+	float _BlurSize;
+
+	v2f vertBlurHorizontal (appdata_img v)
+	{
+		v2f o;
+		o.pos = v.vertex;
+		
+		o.uv = half4(v.texcoord.xy,1,1);
+		o.offs = _TexelSize.xy * half2(1.0, 0.0) * _BlurSize;
+
+		return o; 
+	}
+	
+	v2f vertBlurVertical (appdata_img v)
+	{
+		v2f o;
+		o.pos = v.vertex;
+		
+		o.uv = half4(v.texcoord.xy, 1, 1);
+		o.offs = _TexelSize.xy * half2(0.0, 1.0) * _BlurSize;
+		 
+		return o; 
+	}	
+
+	float4 fragBlur8 (v2f i) : SV_Target
+	{
+		half2 coords = i.uv.xy - i.offs * 5.0;  
+		
+		float4 color = 0;
+		for(int k = 0; k < 11; k++)  
+		{
+			color += tex2D(_MainTex, coords);
+			coords += i.offs;
+		}
+		return color/11.0;
+	}	
+					
+	ENDCG
+	
+	SubShader {
+	  ZTest Off Cull Off ZWrite Off Blend Off
+
+	// 0
+	Pass 
+	{ 
+		CGPROGRAM
+		#pragma vertex vert4Tap
+		#pragma fragment fragDownsampleFromShadowmapFormat
+		ENDCG	 
+	}
+
+	// 1
+	Pass 
+	{ 
+		CGPROGRAM
+		#pragma vertex vert4Tap
+		#pragma fragment fragDownsample
+		ENDCG	 
+	}
+
+	// 2
+	Pass {
+		ZTest Always
+		Cull Off
+		
+		CGPROGRAM 
+		
+		#pragma vertex vertBlurVertical
+		#pragma fragment fragBlur8
+		
+		ENDCG 
+		}	
+		
+	// 3
+	Pass {		
+		ZTest Always
+		Cull Off
+				
+		CGPROGRAM
+		
+		#pragma vertex vertBlurHorizontal
+		#pragma fragment fragBlur8
+		
+		ENDCG
+		}
+
+	// 4
+	Pass 
+	{ 
+		CGPROGRAM
+		#pragma vertex vert4TapDir
+		#pragma fragment fragDownsampleFromShadowmapFormatDir
+		ENDCG	 
+	}
+
+	// 5
+	Pass 
+	{ 
+		CGPROGRAM
+		#pragma vertex vert4TapDir
+		#pragma fragment fragDownsample
+		ENDCG	 
+	}
+
+	}	
+
+	FallBack Off
+}
--- a/Assets/VolumetricFog/Shaders/BlurShadowmap.shader.meta
+++ b/Assets/VolumetricFog/Shaders/BlurShadowmap.shader.meta
@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: 701192b62a7678549918bc87434699fe
+timeCreated: 1432227463
+licenseType: Pro
+ShaderImporter:
+  defaultTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/VolumetricFog/Shaders/CopyShadowParams.shader
+++ b/Assets/VolumetricFog/Shaders/CopyShadowParams.shader
@ -0,0 +1,43 @@
+Shader "Hidden/CopyShadowParams"
+{
+	SubShader
+	{
+		Pass
+		{
+			CGPROGRAM
+			#pragma target 5.0
+			#pragma only_renderers d3d11
+			#pragma vertex vert
+			#pragma fragment frag
+			#include "UnityCG.cginc"
+
+			struct ShadowParams
+			{
+				float4x4 worldToShadow[4];
+				float4 shadowSplitSpheres[4];
+				float4 shadowSplitSqRadii;
+			};
+
+			// Hmm, we can't be sure u2 doesn't conflict with other effects.
+			RWStructuredBuffer<ShadowParams> _ShadowParams : register(u2);
+
+			float4 vert () : SV_POSITION
+			{
+				for (int i = 0; i < 4; i++)
+				{
+					_ShadowParams[0].worldToShadow[i] = unity_WorldToShadow[i];
+					_ShadowParams[0].shadowSplitSpheres[i] = unity_ShadowSplitSpheres[i];
+				}
+				_ShadowParams[0].shadowSplitSqRadii = unity_ShadowSplitSqRadii;
+
+				return float4(0, 0, 0, 1);
+			}
+			
+			fixed4 frag () : SV_Target
+			{
+				return 0;
+			}
+			ENDCG
+		}
+	}
+}
--- a/Show More
+++ b/Show More