max/MA_TextureAtlasser
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Code Issues Projects Releases Wiki Activity

Support old prefab system

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Added support for the prefab system used before Unity 2018.
This commit is contained in:
max
2019-11-29 00:03:18 +01:00
parent 406720d718
commit 0dfa466d78
5 changed files with 516 additions and 521 deletions
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353
Assets/MA_ToolBox/MA_Utilities/MeshUtils/MA_MeshUtils.cs
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@ -15,91 +15,102 @@ using UnityEditor;
namespace MA_Mesh
{
public static class MA_MeshUtils
{
public static string MA_SaveMeshAsset(Mesh mesh, string meshName, string savePath)
{
Mesh newMesh = mesh;
public static class MA_MeshUtils
{
public static string MA_SaveMeshAsset(Mesh mesh, string savePath)
{
if (string.IsNullOrEmpty(mesh.name))
{
mesh.name = UnityEngine.Random.Range(11111, 99999).ToString();
}
if(meshName == "")
{
newMesh.name = mesh.name;
}
else
{
newMesh.name = meshName;
}
string assetPath = savePath + mesh.name + ".asset";
string assetPath = savePath + newMesh.name + ".asset";
AssetDatabase.CreateAsset(newMesh, assetPath);
AssetDatabase.CreateAsset(mesh, assetPath);
AssetDatabase.SaveAssets();
return assetPath;
}
}
public static string MA_SaveMeshPrefab(Mesh mesh, string meshName, string savePath, string material)
public static string MA_SaveMeshPrefab(Mesh mesh, string prefabName, string savePath, string materialPath)
{
string assetPath = "";
string assetPath = null;
if (meshName == "")
{
meshName = mesh.name;
}
string meshAssetPath = MA_SaveMeshAsset(mesh, savePath);
Mesh meshAsset = AssetDatabase.LoadAssetAtPath<Mesh>(meshAssetPath);
string meshPath = MA_SaveMeshAsset(mesh, meshName, savePath);
Mesh curMesh = AssetDatabase.LoadAssetAtPath<Mesh>(meshPath);
if (curMesh != null)
if (meshAsset != null)
{
GameObject gameObject = new GameObject
{
name = meshName
name = prefabName
};
gameObject.AddComponent<MeshFilter>().mesh = curMesh;
gameObject.AddComponent<MeshFilter>().mesh = meshAsset;
gameObject.AddComponent<MeshRenderer>();
Material curMaterial = AssetDatabase.LoadAssetAtPath<Material>(material);
Material curMaterial = AssetDatabase.LoadAssetAtPath<Material>(materialPath);
if (curMaterial != null)
{
gameObject.GetComponent<MeshRenderer>().material = curMaterial;
}
assetPath = savePath + meshName + ".prefab";
if (string.IsNullOrEmpty(prefabName))
{
prefabName = UnityEngine.Random.Range(11111, 99999).ToString();
}
assetPath = savePath + prefabName + ".prefab";
#if UNITY_2018_4_OR_NEWER
PrefabUtility.SaveAsPrefabAsset(gameObject, assetPath);
#else
GameObject go = AssetDatabase.LoadAssetAtPath<GameObject>(assetPath);
if (go != null)
{
PrefabUtility.ReplacePrefab(gameObject, go, ReplacePrefabOptions.ReplaceNameBased);
}
else
{
PrefabUtility.CreatePrefab(assetPath, gameObject, ReplacePrefabOptions.ReplaceNameBased);
}
#endif
UnityEngine.GameObject.DestroyImmediate(gameObject);
}
return assetPath;
}
public static Mesh MA_DuplicateMesh(Mesh mesh)
{
Mesh newMesh = new Mesh
{
name = mesh.name,
bounds = mesh.bounds,
subMeshCount = mesh.subMeshCount
};
public static Mesh MA_DuplicateMesh(Mesh mesh)
{
Mesh newMesh = new Mesh
{
name = mesh.name,
bounds = mesh.bounds,
subMeshCount = mesh.subMeshCount
};
newMesh.SetVertices(new List<Vector3>(mesh.vertices));
for (int i = 0; i < mesh.subMeshCount; i++)
{
newMesh.SetTriangles(mesh.GetTriangles(i), i);
}
newMesh.SetNormals(new List<Vector3>(mesh.normals));
newMesh.SetUVs(0, new List<Vector2>(mesh.uv));
newMesh.SetTangents(new List<Vector4>(mesh.tangents));
newMesh.SetVertices(new List<Vector3>(mesh.vertices));
for (int i = 0; i < mesh.subMeshCount; i++)
{
newMesh.SetTriangles(mesh.GetTriangles(i), i);
}
newMesh.SetNormals(new List<Vector3>(mesh.normals));
newMesh.SetUVs(0, new List<Vector2>(mesh.uv));
newMesh.SetTangents(new List<Vector4>(mesh.tangents));
newMesh.SetColors(new List<Color>(mesh.colors));
return newMesh;
}
return newMesh;
}
public static Mesh MA_ReMapUV(this Mesh mesh, Vector2 atlasSize, Vector2 textureSize, Vector2 texturePosition, int uvChannel = 0)
{
/*
public static Mesh MA_ReMapUV(this Mesh mesh, Vector2 atlasSize, Vector2 textureSize, Vector2 texturePosition, int uvChannel = 0)
{
/*
0 1
512 x 512
@ -109,154 +120,154 @@ namespace MA_Mesh
+ pos
*/
List<Vector2> uvs = new List<Vector2>();
//Get UV's
mesh.GetUVs(uvChannel, uvs);
List<Vector2> uvs = new List<Vector2>();
foreach (Vector2 uvCordinate in uvs)
{
float x = (uvCordinate.x / atlasSize.x * textureSize.x) + texturePosition.x;
float y = (uvCordinate.y / atlasSize.y * textureSize.y) + texturePosition.y;
uvCordinate.Set(x, y);
}
//Get UV's
mesh.GetUVs(uvChannel, uvs);
mesh.SetUVs(uvChannel, uvs);
foreach (Vector2 uvCordinate in uvs)
{
float x = (uvCordinate.x / atlasSize.x * textureSize.x) + texturePosition.x;
float y = (uvCordinate.y / atlasSize.y * textureSize.y) + texturePosition.y;
uvCordinate.Set(x, y);
}
return mesh;
}
mesh.SetUVs(uvChannel, uvs);
public static Mesh MA_UVReMap(this Mesh mesh, Vector2 atlasSize, Rect textureRect, int uvChannel = 0, bool flipY = true, bool wrap = true)
{
//Get UV's
List<Vector2> uvs = new List<Vector2>();
mesh.GetUVs(uvChannel, uvs);
return mesh;
}
//Min and max bounds in 0-1 space.
float xMin, xMax, yMin, yMax;
xMin = (1f / atlasSize.x * textureRect.width);
xMax = (1f / atlasSize.x * textureRect.x);
yMin = (1f / atlasSize.y * textureRect.height);
public static Mesh MA_UVReMap(this Mesh mesh, Vector2 atlasSize, Rect textureRect, int uvChannel = 0, bool flipY = true, bool wrap = true)
{
//Get UV's
List<Vector2> uvs = new List<Vector2>();
mesh.GetUVs(uvChannel, uvs);
//Flip uv's if needed.
if (flipY)
{
yMax = (1f / atlasSize.y * (atlasSize.y - textureRect.height - textureRect.y));
}
else
{
yMax = (1f / atlasSize.y * textureRect.y);
}
//Min and max bounds in 0-1 space.
float xMin, xMax, yMin, yMax;
xMin = (1f / atlasSize.x * textureRect.width);
xMax = (1f / atlasSize.x * textureRect.x);
yMin = (1f / atlasSize.y * textureRect.height);
for (int i = 0; i < uvs.Count; i++)
{
float newX = uvs[i].x * xMin + xMax;
float newY = uvs[i].y * yMin + yMax;
//Flip uv's if needed.
if (flipY)
{
yMax = (1f / atlasSize.y * (atlasSize.y - textureRect.height - textureRect.y));
}
else
{
yMax = (1f / atlasSize.y * textureRect.y);
}
//Wrap the verts outside of the uv space around back into the uv space.
if (wrap)
{
newX = Wrap(newX, xMax, xMin + xMax);
newY = Wrap(newY, yMax, yMin + yMax);
}
for (int i = 0; i < uvs.Count; i++)
{
float newX = uvs[i].x * xMin + xMax;
float newY = uvs[i].y * yMin + yMax;
uvs[i] = new Vector2(newX, newY);
}
//Wrap the verts outside of the uv space around back into the uv space.
if (wrap)
{
newX = Wrap(newX, xMax, xMin + xMax);
newY = Wrap(newY, yMax, yMin + yMax);
}
mesh.SetUVs(uvChannel, uvs);
uvs[i] = new Vector2(newX, newY);
}
return mesh;
}
mesh.SetUVs(uvChannel, uvs);
public static float Wrap(float val, float min, float max)
{
val -= (float)Math.Round((val - min) / (max - min)) * (max - min);
if (val < min)
val = val + max - min;
return val;
}
return mesh;
}
//Start http://wiki.unity3d.com/index.php?title=ObjExporter
public static string MeshToString(Mesh mesh)
{
int vertexOffset = 0;
int normalOffset = 0;
int uvOffset = 0;
public static float Wrap(float val, float min, float max)
{
val -= (float)Math.Round((val - min) / (max - min)) * (max - min);
if (val < min)
val = val + max - min;
return val;
}
Material material = new Material(Shader.Find("Standard"));
StringBuilder sb = new StringBuilder();
sb.Append("g ").Append(mesh.name).Append("\n");
//Start http://wiki.unity3d.com/index.php?title=ObjExporter
public static string MeshToString(Mesh mesh)
{
int vertexOffset = 0;
int normalOffset = 0;
int uvOffset = 0;
foreach(Vector3 v in mesh.vertices)
{
//This is sort of ugly - inverting x-component since we're in
//a different coordinate system than "everyone" is "used to".
sb.Append(string.Format("v {0} {1} {2}\n", -v.x, v.y, v.z));
}
Material material = new Material(Shader.Find("Standard"));
sb.Append("\n");
StringBuilder sb = new StringBuilder();
foreach(Vector3 v in mesh.normals)
{
sb.Append(string.Format("vn {0} {1} {2}\n", -v.x, v.y, v.z));
}
sb.Append("g ").Append(mesh.name).Append("\n");
sb.Append("\n");
foreach (Vector3 v in mesh.vertices)
{
//This is sort of ugly - inverting x-component since we're in
//a different coordinate system than "everyone" is "used to".
sb.Append(string.Format("v {0} {1} {2}\n", -v.x, v.y, v.z));
}
foreach(Vector3 v in mesh.uv)
{
sb.Append(string.Format("vt {0} {1}\n", v.x, v.y));
}
sb.Append("\n");
for (int m = 0 ; m < mesh.subMeshCount; m++)
{
sb.Append("\n");
sb.Append("usemtl ").Append(material.name + m).Append("\n");
sb.Append("usemap ").Append(material.name + m).Append("\n");
// int[] triangles = mesh.GetTriangles(m);
// for (int i = 0; i < triangles.Length; i += 3)
// {
// sb.Append(string.Format("f {0}/{0}/{0} {1}/{1}/{1} {2}/{2}/{2}\n", triangles[i]+1, triangles[i+1]+1, triangles[i+2]+1));
// }
foreach (Vector3 v in mesh.normals)
{
sb.Append(string.Format("vn {0} {1} {2}\n", -v.x, v.y, v.z));
}
int[] triangles = mesh.GetTriangles(m);
for (int i = 0; i < triangles.Length; i += 3)
{
//Because we inverted the x-component, we also needed to alter the triangle winding.
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n", triangles[i]+ 1 + vertexOffset, triangles[i + 1] + 1 + normalOffset, triangles[i +2 ] + 1 + uvOffset));
}
}
sb.Append("\n");
//vertexOffset += mesh.vertices.Length;
//normalOffset += mesh.normals.Length;
//uvOffset += mesh.uv.Length;
foreach (Vector3 v in mesh.uv)
{
sb.Append(string.Format("vt {0} {1}\n", v.x, v.y));
}
return sb.ToString();
}
public static string MeshToFile(Mesh mesh, string filename, string savePath)
{
for (int m = 0; m < mesh.subMeshCount; m++)
{
sb.Append("\n");
sb.Append("usemtl ").Append(material.name + m).Append("\n");
sb.Append("usemap ").Append(material.name + m).Append("\n");
// int[] triangles = mesh.GetTriangles(m);
// for (int i = 0; i < triangles.Length; i += 3)
// {
// sb.Append(string.Format("f {0}/{0}/{0} {1}/{1}/{1} {2}/{2}/{2}\n", triangles[i]+1, triangles[i+1]+1, triangles[i+2]+1));
// }
int[] triangles = mesh.GetTriangles(m);
for (int i = 0; i < triangles.Length; i += 3)
{
//Because we inverted the x-component, we also needed to alter the triangle winding.
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n", triangles[i] + 1 + vertexOffset, triangles[i + 1] + 1 + normalOffset, triangles[i + 2] + 1 + uvOffset));
}
}
//vertexOffset += mesh.vertices.Length;
//normalOffset += mesh.normals.Length;
//uvOffset += mesh.uv.Length;
return sb.ToString();
}
public static string MeshToFile(Mesh mesh, string filename, string savePath)
{
string assetPath = savePath + filename + ".obj";
using (StreamWriter sw = new StreamWriter(assetPath))
{
sw.Write(MeshToString(mesh));
}
using (StreamWriter sw = new StreamWriter(assetPath))
{
sw.Write(MeshToString(mesh));
}
AssetDatabase.Refresh();
return assetPath;
}
//End
}
}
//End
}
//struct ObjMaterial
//{
// public string name;
// public string textureName;
//}
//struct ObjMaterial
//{
// public string name;
// public string textureName;
//}
}
#endif