mirror of
https://github.com/maxartz15/VertexAnimation.git
synced 2024-12-04 17:20:44 +01:00
Switched to Houdini vector packing
This commit is contained in:
parent
de17fa3ffb
commit
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@ -151,7 +151,7 @@ namespace TAO.VertexAnimation
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{
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positionMap.SetPixel(x, y,
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new Color(verts[v].x, verts[v].y, verts[v].z,
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VectorUtils.Float3ToFloat(normals[v]))
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VectorUtils.EncodeFloat3ToFloat1(normals[v]))
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);
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x++;
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@ -4,9 +4,11 @@ namespace TAO.VertexAnimation
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{
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public static class VectorUtils
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{
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#region Custom Packing
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// Encode.
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public static Vector2 Float3ToFloat2(this Vector3 f3)
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{
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Vector3 rotation = Vector3.Normalize(new Vector3(f3.x, 0, f3.z));
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Vector3 rotation = Vector3.Normalize(new Vector3(f3.x, 0, f3.y));
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Vector2 f2 = new Vector2();
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f2.x = Mathf.Acos(Vector3.Dot(rotation, new Vector3(1, 0, 0))) * Mathf.Sign(f3.z);
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@ -30,5 +32,94 @@ namespace TAO.VertexAnimation
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{
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return Float2ToFloat(Float3ToFloat2(f3));
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}
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// Decode.
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public static Vector2 FloatToFloat2(float f1)
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{
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f1 *= 256;
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Vector2 f2;
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f2.x = (f1 % 16) / 15;
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f2.y = ((f1 / 256) * 16);
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f2.y = Mathf.Floor(f2.y) / 15;
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return f2;
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}
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public static Vector3 Float2ToFloat3(Vector2 f2)
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{
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float dist = 1 - Mathf.Abs((f2.y - 0.5f) * 2);
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float temp = (f2.x * (Mathf.PI * 2)) - Mathf.PI;
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Vector3 f3;
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f3.x = Mathf.Sin(temp + (Mathf.PI * 2)) * dist;
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f3.z = Mathf.Cos((temp - Mathf.PI) + (Mathf.PI * 2)) * dist;
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f3.y = (f2.y - 0.5f) * -2;
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f3 = f3.normalized;
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return f3;
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}
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public static Vector3 FloatToFloat3(float f1)
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{
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return Float2ToFloat3(FloatToFloat2(f1));
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}
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#endregion
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#region Houdini Style Packing
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// Encode.
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public static float EncodeFloat3ToFloat1(Vector3 f3)
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{
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float f1;
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float z = Mathf.Sqrt(f3.z * 8 + 8);
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float y = (f3.y / z + 0.5f) * 31;
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float x = Mathf.Floor((f3.x / z + 0.5f) * 31) * 32;
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f1 = (x + y) / 1023;
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return f1;
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}
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// Decode.
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public static Vector2 DecodeFloat1ToFloat2(float f1)
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{
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Vector2 f2;
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f1 *= 1024;
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f2.x = Mathf.Floor(f1 / 32.0f) / 31.5f;
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f2.y = (f1 - (Mathf.Floor(f1 / 32.0f) * 32.0f)) / 31.5f;
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return f2;
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}
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public static Vector3 DecodeFloat2ToFloat3(Vector2 f2)
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{
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Vector3 f3;
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f2 *= 4;
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f2.x -= 2;
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f2.y -= 2;
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float f2dot = Vector3.Dot(f2, f2);
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f3.x = Mathf.Sqrt(1 - (f2dot / 4.0f)) * f2.x;
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f3.y = Mathf.Sqrt(1 - (f2dot / 4.0f)) * f2.y;
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f3.z = 1 - (f2dot / 2.0f);
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//f3.x = Mathf.Clamp(f3.x, -1.0f, 1.0f);
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//f3.y = Mathf.Clamp(f3.x, -1.0f, 1.0f);
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//f3.z = Mathf.Clamp(f3.x, -1.0f, 1.0f);
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f3 = Vector3.ClampMagnitude(f3, 1);
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return f3;
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}
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public static Vector3 DecodeFloat1ToFloat3(float f1)
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{
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return DecodeFloat2ToFloat3(DecodeFloat1ToFloat2(f1));
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}
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#endregion
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}
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}
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@ -178,9 +178,6 @@
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@ -219,6 +216,9 @@
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@ -307,9 +307,9 @@
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@ -368,6 +368,20 @@
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@ -578,20 +592,6 @@
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@ -1301,9 +1301,9 @@
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@ -1443,10 +1443,10 @@
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@ -1472,7 +1472,7 @@
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@ -1824,6 +1824,21 @@
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@ -2048,9 +2063,9 @@
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@ -2183,6 +2198,47 @@
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@ -2836,29 +2892,17 @@
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@ -3356,47 +3400,6 @@
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@ -4824,33 +4827,6 @@
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},
|
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"m_DefaultValue": {
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"x": 0.0,
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"y": 0.0,
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"z": 0.0
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},
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"m_Labels": [
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"X",
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"Y",
|
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"Z"
|
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]
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}
|
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|
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{
|
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"m_SGVersion": 0,
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"m_Type": "UnityEditor.ShaderGraph.Vector1MaterialSlot",
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@ -5163,23 +5139,6 @@
|
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"m_DefaultType": 0
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}
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{
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"m_SGVersion": 0,
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"m_Type": "UnityEditor.ShaderGraph.Vector1MaterialSlot",
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"m_ObjectId": "d39aa5bc230343b8871723ace888b86b",
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"m_Id": 654627568,
|
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"m_DisplayName": "Vector1",
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"m_SlotType": 0,
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"m_Hidden": false,
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"m_ShaderOutputName": "Vector1_771ac3b08a1144b086078a0d07c220da",
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"m_StageCapability": 3,
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"m_Value": 0.23919999599456788,
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"m_DefaultValue": 0.0,
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"m_Labels": [
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"X"
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]
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}
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{
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"m_SGVersion": 0,
|
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"m_Type": "UnityEditor.ShaderGraph.UVMaterialSlot",
|
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@ -5736,6 +5695,29 @@
|
||||
"m_Labels": []
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}
|
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|
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{
|
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"m_SGVersion": 0,
|
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"m_Type": "UnityEditor.ShaderGraph.Vector3MaterialSlot",
|
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"m_ObjectId": "e78abbe7b9df407ea285f6a0b2b764db",
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"m_Id": 1,
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"m_DisplayName": "Vector3",
|
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"m_SlotType": 1,
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"m_Hidden": false,
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"m_ShaderOutputName": "Vector3",
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"m_StageCapability": 3,
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"m_Value": {
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"x": 0.0,
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"y": 0.0,
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"z": 0.0
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},
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"m_DefaultValue": {
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"x": 0.0,
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"y": 0.0,
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"z": 0.0
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},
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"m_Labels": []
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}
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{
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"m_SGVersion": 0,
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"m_Type": "UnityEditor.ShaderGraph.TangentMaterialSlot",
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|
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@ -6,62 +6,17 @@
|
||||
#define V_TWO_PI 6.28318530718f
|
||||
#define V_HALF_PI 1.57079632679f
|
||||
|
||||
void EncodeFloat3ToFloat1_float(float3 f3, out float f1)
|
||||
{
|
||||
float z = sqrt(f3.z * 8 + 8);
|
||||
float y = (f3.y / z + 0.5f) * 31;
|
||||
float x = floor((f3.x / z + 0.5f) * 31) * 32;
|
||||
f1 = (x + y) / 1023;
|
||||
}
|
||||
|
||||
void DecodeFloat1ToFloat2_float(float f1, out float2 f2)
|
||||
{
|
||||
f1 *= 1024;
|
||||
f2.x = floor(f1 / 32.0) / 31.5;
|
||||
f2.y = (f1 - (floor(f1 / 32.0) * 32.0)) / 31.5;
|
||||
}
|
||||
|
||||
void DecodeFloat2ToFloat3_float(float f2, out float3 f3)
|
||||
{
|
||||
f2 *= 4;
|
||||
f2 -= 2;
|
||||
float f2dot = dot(f2, f2);
|
||||
f3.xy = sqrt(1 - (f2dot / 4.0)) * f2;
|
||||
f3.z = 1 - (f2dot / 2.0);
|
||||
f3 = clamp(f3, -1.0, 1.0);
|
||||
}
|
||||
|
||||
void DecodeFloat1ToFloat3_float(float f1, out float3 f3)
|
||||
{
|
||||
float2 f2;
|
||||
DecodeFloat1ToFloat2_float(f1, f2);
|
||||
DecodeFloat2ToFloat3_float(f2, f3);
|
||||
}
|
||||
|
||||
// Ref:
|
||||
// https://answers.unity.com/questions/733677/cg-shader-float3-to-float-packunpack-functions.html
|
||||
// http://aras-p.info/blog/2009/07/30/encoding-floats-to-rgba-the-final/
|
||||
void Encode2Float3ToFloat1_float(float3 f3, out float f1)
|
||||
{
|
||||
f1 = (dot(round((f3) * 255), float3(65536, 256, 1)));
|
||||
}
|
||||
|
||||
void Decode2Float1ToFloat3_float(float f1, out float3 f3)
|
||||
{
|
||||
f3 = (frac((f1) / float3(16777216, 65536, 256)));
|
||||
}
|
||||
|
||||
// Custom
|
||||
// Custom Packing.
|
||||
// Encode float3 to 0..1 float.
|
||||
void Float3ToFloat2_float(float3 f3, out float2 f2)
|
||||
{
|
||||
//float3 rotation = normalize(float3(f3.x, 0, f3.y));
|
||||
float3 rotation = normalize(float3(f3.x, 0, f3.z));
|
||||
|
||||
f2.x = acos (dot(rotation, float3(1, 0, 0))) * sign(f3.z);
|
||||
f2.x = acos(dot(rotation, float3(1, 0, 0))) * sign(f3.z);
|
||||
f2.x = ((f2.x / V_PI) + 1) * 0.5f;
|
||||
|
||||
f2.y = acos(f3.y) / V_PI;
|
||||
|
||||
f2.y = acos(f3.y) / V_PI;
|
||||
|
||||
f2 *= 15;
|
||||
f2.x = round(f2.x);
|
||||
@ -94,12 +49,12 @@ void Float2ToFloat3_float(float2 f2, out float3 f3)
|
||||
{
|
||||
float dist = 1 - abs((f2.y - 0.5f) * 2);
|
||||
float temp = (f2.x * V_TWO_PI) - V_PI;
|
||||
|
||||
|
||||
f3.x = sin(temp + V_TWO_PI) * dist;
|
||||
f3.z = cos((temp - V_PI) + V_TWO_PI) * dist;
|
||||
|
||||
f3.y = (f2.y - 0.5f) * -2;
|
||||
|
||||
|
||||
f3 = normalize(f3);
|
||||
}
|
||||
|
||||
@ -110,4 +65,53 @@ void FloatToFloat3_float(float f1, out float3 f3)
|
||||
Float2ToFloat3_float(f2, f3);
|
||||
}
|
||||
|
||||
// Houdini Style Packing.
|
||||
// Encode.
|
||||
void EncodeFloat3ToFloat1_float(float3 f3, out float f1)
|
||||
{
|
||||
float z = sqrt(f3.z * 8 + 8);
|
||||
float y = (f3.y / z + 0.5f) * 31;
|
||||
float x = floor((f3.x / z + 0.5f) * 31) * 32;
|
||||
f1 = (x + y) / 1023;
|
||||
}
|
||||
|
||||
// Decode.
|
||||
void DecodeFloat1ToFloat2_float(float f1, out float2 f2)
|
||||
{
|
||||
f1 *= 1024;
|
||||
f2.x = floor(f1 / 32.0) / 31.5;
|
||||
f2.y = (f1 - (floor(f1 / 32.0) * 32.0)) / 31.5;
|
||||
}
|
||||
|
||||
void DecodeFloat2ToFloat3_float(float2 f2, out float3 f3)
|
||||
{
|
||||
f2 *= 4;
|
||||
f2 -= 2;
|
||||
float f2dot = dot(f2, f2);
|
||||
f3.xy = sqrt(1 - (f2dot / 4.0)) * f2;
|
||||
f3.z = 1 - (f2dot / 2.0);
|
||||
f3 = clamp(f3, -1.0, 1.0);
|
||||
}
|
||||
|
||||
void DecodeFloat1ToFloat3_float(float f1, out float3 f3)
|
||||
{
|
||||
float2 f2;
|
||||
DecodeFloat1ToFloat2_float(f1, f2);
|
||||
DecodeFloat2ToFloat3_float(f2, f3);
|
||||
}
|
||||
|
||||
// Test Packing.
|
||||
// Ref:
|
||||
// https://answers.unity.com/questions/733677/cg-shader-float3-to-float-packunpack-functions.html
|
||||
// http://aras-p.info/blog/2009/07/30/encoding-floats-to-rgba-the-final/
|
||||
void Encode2Float3ToFloat1_float(float3 f3, out float f1)
|
||||
{
|
||||
f1 = (dot(round((f3) * 255), float3(65536, 256, 1)));
|
||||
}
|
||||
|
||||
void Decode2Float1ToFloat3_float(float f1, out float3 f3)
|
||||
{
|
||||
f3 = (frac((f1) / float3(16777216, 65536, 256)));
|
||||
}
|
||||
|
||||
#endif
|
||||
@ -25,7 +25,7 @@ float2 VA_UV_float(float2 uv, int maxFrames, float time)
|
||||
}
|
||||
|
||||
void VA_float(float2 uv, SamplerState texSampler, Texture2D positionMap, float time, int maxFrames,
|
||||
out float3 position, out float3 alpha)
|
||||
out float3 position, out float alpha)
|
||||
{
|
||||
float2 uvPosition = VA_UV_float(uv, maxFrames, time);
|
||||
|
||||
@ -39,7 +39,7 @@ void VA_float(float2 uv, SamplerState texSampler, Texture2D positionMap, float t
|
||||
}
|
||||
|
||||
void VA_ARRAY_float(float2 uv, SamplerState texSampler, Texture2DArray positionMap, float positionMapIndex, float time, int maxFrames,
|
||||
out float3 position, out float3 alpha)
|
||||
out float3 position, out float alpha)
|
||||
{
|
||||
float2 uvPosition = VA_UV_float(uv, maxFrames, time);
|
||||
|
||||
|
||||
@ -196,7 +196,7 @@
|
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"m_Id": "b89a68670a6642e19ae1063415132848"
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},
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{
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"m_Id": "68e1750097114f2d9801fda29c1a4a1a"
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"m_Id": "55359b5ca883410595a9cc7689b25421"
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}
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],
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"synonyms": [],
|
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@ -340,6 +340,21 @@
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"m_StageCapability": 3
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}
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{
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"m_SGVersion": 0,
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"m_Type": "UnityEditor.ShaderGraph.Vector1MaterialSlot",
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"m_ObjectId": "55359b5ca883410595a9cc7689b25421",
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"m_Id": 2,
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"m_DisplayName": "Alpha",
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"m_SlotType": 0,
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"m_Hidden": false,
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"m_ShaderOutputName": "Alpha",
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"m_StageCapability": 3,
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"m_Value": 0.0,
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"m_DefaultValue": 0.0,
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"m_Labels": []
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}
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{
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"m_SGVersion": 0,
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"m_Type": "UnityEditor.ShaderGraph.PropertyNode",
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@ -374,33 +389,6 @@
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}
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}
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{
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"m_SGVersion": 0,
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"m_Type": "UnityEditor.ShaderGraph.Vector3MaterialSlot",
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"m_ObjectId": "68e1750097114f2d9801fda29c1a4a1a",
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"m_Id": 2,
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"m_DisplayName": "Alpha",
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"m_SlotType": 0,
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"m_Hidden": false,
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"m_ShaderOutputName": "Alpha",
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"m_StageCapability": 3,
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"m_Value": {
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"x": 0.0,
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"y": 0.0,
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"z": 0.0
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},
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"m_DefaultValue": {
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"x": 0.0,
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"y": 0.0,
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"z": 0.0
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},
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"m_Labels": [
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"X",
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"Y",
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"Z"
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]
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}
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|
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{
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"m_SGVersion": 0,
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"m_Type": "UnityEditor.ShaderGraph.Vector2MaterialSlot",
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@ -463,7 +451,7 @@
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"m_Id": "f08b7a93deeb46548e0a57309906d22a"
|
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},
|
||||
{
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"m_Id": "f3afc10b499a42c4bbcd332b713c9635"
|
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"m_Id": "fe7d42cad1e74435a269788bd8805aab"
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}
|
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],
|
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"synonyms": [],
|
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@ -759,33 +747,6 @@
|
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}
|
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}
|
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|
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{
|
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"m_SGVersion": 0,
|
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"m_Type": "UnityEditor.ShaderGraph.Vector3MaterialSlot",
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"m_ObjectId": "f3afc10b499a42c4bbcd332b713c9635",
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"m_Id": 10,
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"m_DisplayName": "alpha",
|
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"m_SlotType": 1,
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"m_Hidden": false,
|
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"m_ShaderOutputName": "alpha",
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"m_StageCapability": 3,
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"m_Value": {
|
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"x": 0.0,
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"y": 0.0,
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"z": 0.0
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},
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"m_DefaultValue": {
|
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"x": 0.0,
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"y": 0.0,
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"z": 0.0
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},
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"m_Labels": [
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"X",
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"Y",
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"Z"
|
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]
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}
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|
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{
|
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"m_SGVersion": 1,
|
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"m_Type": "UnityEditor.ShaderGraph.Internal.Vector1ShaderProperty",
|
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@ -809,6 +770,21 @@
|
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}
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}
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|
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{
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"m_SGVersion": 0,
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"m_Type": "UnityEditor.ShaderGraph.Vector1MaterialSlot",
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"m_ObjectId": "fe7d42cad1e74435a269788bd8805aab",
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"m_Id": 10,
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"m_DisplayName": "alpha",
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"m_SlotType": 1,
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"m_Hidden": false,
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"m_ShaderOutputName": "alpha",
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"m_StageCapability": 3,
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"m_Value": 0.0,
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"m_DefaultValue": 0.0,
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"m_Labels": []
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}
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{
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"m_SGVersion": 0,
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"m_Type": "UnityEditor.ShaderGraph.Texture2DMaterialSlot",
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@ -216,7 +216,7 @@
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"m_Id": "b89a68670a6642e19ae1063415132848"
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},
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{
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"m_Id": "7106fc4a9e6e4a0a8bdd678ceb7f4f1c"
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"m_Id": "5c5241600e5b40d998b82d09856f71a9"
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}
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],
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"synonyms": [],
|
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@ -356,29 +356,17 @@
|
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|
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{
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"m_SGVersion": 0,
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"m_Type": "UnityEditor.ShaderGraph.Vector3MaterialSlot",
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"m_ObjectId": "7106fc4a9e6e4a0a8bdd678ceb7f4f1c",
|
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"m_Type": "UnityEditor.ShaderGraph.Vector1MaterialSlot",
|
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"m_ObjectId": "5c5241600e5b40d998b82d09856f71a9",
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"m_Id": 2,
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"m_DisplayName": "Alpha",
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"m_SlotType": 0,
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"m_Hidden": false,
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"m_ShaderOutputName": "Alpha",
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"m_StageCapability": 3,
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"m_Value": {
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"x": 0.0,
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"y": 0.0,
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"z": 0.0
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},
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"m_DefaultValue": {
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"x": 0.0,
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"y": 0.0,
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"z": 0.0
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},
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"m_Labels": [
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"X",
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"Y",
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"Z"
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]
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"m_Value": 0.0,
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"m_DefaultValue": 0.0,
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"m_Labels": []
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}
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|
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{
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@ -405,6 +393,21 @@
|
||||
]
|
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}
|
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|
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{
|
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"m_SGVersion": 0,
|
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"m_Type": "UnityEditor.ShaderGraph.Vector1MaterialSlot",
|
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"m_ObjectId": "7fcf2701605d41ac92b93ad9bffa69f0",
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"m_Id": 10,
|
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"m_DisplayName": "alpha",
|
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"m_SlotType": 1,
|
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"m_Hidden": false,
|
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"m_ShaderOutputName": "alpha",
|
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"m_StageCapability": 3,
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"m_Value": 0.0,
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"m_DefaultValue": 0.0,
|
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"m_Labels": []
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}
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|
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{
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"m_SGVersion": 0,
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"m_Type": "UnityEditor.ShaderGraph.CustomFunctionNode",
|
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@ -446,7 +449,7 @@
|
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"m_Id": "c2b10d98649f477bb79b359db258f55a"
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},
|
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{
|
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"m_Id": "c1454b74eac5469eb14d403b66a8283a"
|
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"m_Id": "7fcf2701605d41ac92b93ad9bffa69f0"
|
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}
|
||||
],
|
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"synonyms": [],
|
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@ -663,33 +666,6 @@
|
||||
}
|
||||
}
|
||||
|
||||
{
|
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"m_SGVersion": 0,
|
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"m_Type": "UnityEditor.ShaderGraph.Vector3MaterialSlot",
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"m_ObjectId": "c1454b74eac5469eb14d403b66a8283a",
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"m_Id": 10,
|
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"m_DisplayName": "alpha",
|
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"m_SlotType": 1,
|
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"m_Hidden": false,
|
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"m_ShaderOutputName": "alpha",
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"m_StageCapability": 3,
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"m_Value": {
|
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"x": 0.0,
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"y": 0.0,
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"z": 0.0
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},
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"m_DefaultValue": {
|
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"x": 0.0,
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"y": 0.0,
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"z": 0.0
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},
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"m_Labels": [
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"X",
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"Y",
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"Z"
|
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]
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}
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|
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{
|
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"m_SGVersion": 0,
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"m_Type": "UnityEditor.ShaderGraph.Vector1MaterialSlot",
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|
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@ -194,7 +194,7 @@
|
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"m_Expanded": true,
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"m_Position": {
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"serializedVersion": "2",
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"x": -803.0,
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"x": -762.0,
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"y": 38.0,
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||||
"width": 115.0,
|
||||
"height": 34.0
|
||||
@ -251,8 +251,8 @@
|
||||
"m_Expanded": true,
|
||||
"m_Position": {
|
||||
"serializedVersion": "2",
|
||||
"x": -669.0,
|
||||
"y": -1.0,
|
||||
"x": -628.0,
|
||||
"y": -2.0,
|
||||
"width": 142.0,
|
||||
"height": 94.0
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user