void OnGUI_Mesh()
{
GUILayout.Label("Mesh Baking", EditorStyles.boldLabel);
m_Mesh = (Mesh)EditorGUILayout.ObjectField(Contents.mesh, m_Mesh, typeof(Mesh), false);
m_Distribution = (Distribution)EditorGUILayout.EnumPopup(Contents.distribution, m_Distribution);
if (m_Distribution != Distribution.RandomUniformArea)
{
m_MeshBakeMode = (MeshBakeMode)EditorGUILayout.EnumPopup(Contents.meshBakeMode, m_MeshBakeMode);
}
m_ExportNormals = EditorGUILayout.Toggle("Export Normals", m_ExportNormals);
m_ExportColors = EditorGUILayout.Toggle("Export Colors", m_ExportColors);
m_ExportUV = EditorGUILayout.Toggle("Export UVs", m_ExportUV);
m_OutputPointCount = EditorGUILayout.IntField("Point Count", m_OutputPointCount);
if (m_Distribution != Distribution.Sequential)
{
m_SeedMesh = EditorGUILayout.IntField("Seed", m_SeedMesh);
}
m_OutputFormat = (PCache.Format)EditorGUILayout.EnumPopup("File Format", m_OutputFormat);
if (m_Mesh != null)
{
if (GUILayout.Button("Save to pCache file..."))
{
string fileName = EditorUtility.SaveFilePanelInProject("pCacheFile", m_Mesh.name, "pcache", "Save PCache");
if (fileName != null)
{
try
{
EditorUtility.DisplayProgressBar("pCache bake tool", "Capturing data...", 0.0f);
var file = ComputePCacheFromMesh();
if (file != null)
{
EditorUtility.DisplayProgressBar("pCache bake tool", "Saving pCache file", 1.0f);
file.SaveToFile(fileName, m_OutputFormat);
AssetDatabase.ImportAsset(fileName, ImportAssetOptions.ForceUpdate | ImportAssetOptions.ForceSynchronousImport);
}
}
catch (System.Exception e)
{
Debug.LogException(e);
}
EditorUtility.ClearProgressBar();
}
}
EditorGUILayout.Space();
using (new GUILayout.VerticalScope(EditorStyles.helpBox))
{
EditorGUILayout.LabelField("Mesh Statistics", EditorStyles.boldLabel);
EditorGUI.indentLevel++;
EditorGUILayout.IntField("Vertices", m_Mesh.vertexCount);
EditorGUILayout.IntField("Triangles", m_Mesh.triangles.Length);
EditorGUILayout.IntField("Sub Meshes", m_Mesh.subMeshCount);
EditorGUI.indentLevel--;
}
}
EditorGUILayout.Space();
}
public static PCache ComputePCacheFromMesh(Mesh mesh, int mapSize = 512, int pointCount = 4096, int seed = 0, Distribution distribution = Distribution.RandomUniformArea, MeshBakeMode meshBakeMode = MeshBakeMode.Triangle)
{
if (mapSize % 8 != 0)
{
Debug.LogError("Position map dimensions should be a multiple of 8.");
return(null);
}
if (computeShader == null)
{
computeShader = computeShader = Resources.Load <ComputeShader>("Shaders/ComputeMeshToMap");
}
PCache pCache = new PCache();
// From PointCacheBakeTool
MeshData meshCache = ComputeDataCache(mesh);
Picker picker = null;
if (distribution == Distribution.Sequential)
{
if (meshBakeMode == MeshBakeMode.Vertex)
{
picker = new SequentialPickerVertex(meshCache);
}
else if (meshBakeMode == MeshBakeMode.Triangle)
{
picker = new SequentialPickerTriangle(meshCache);
}
}
else if (distribution == Distribution.Random)
{
if (meshBakeMode == MeshBakeMode.Vertex)
{
picker = new RandomPickerVertex(meshCache, seed);
}
else if (meshBakeMode == MeshBakeMode.Triangle)
{
picker = new RandomPickerTriangle(meshCache, seed);
}
}
else if (distribution == Distribution.RandomUniformArea)
{
picker = new RandomPickerUniformArea(meshCache, seed);
}
if (picker == null)
{
throw new InvalidOperationException("Unable to find picker");
}
pCache.mesh = mesh;
pCache.mapSize = mapSize;
pCache.positions = new List <Vector3>();
pCache.normals = new List <Vector3>();
for (int i = 0; i < pointCount; ++i)
{
var vertex = picker.GetNext();
pCache.positions.Add(vertex.position);
pCache.normals.Add(vertex.normal);
}
// From SMRVFX
pCache.positionMap = new RenderTexture(mapSize, mapSize, 0, RenderTextureFormat.ARGBFloat);
pCache.positionMap.enableRandomWrite = true;
pCache.positionMap.Create();
pCache.normalMap = new RenderTexture(mapSize, mapSize, 0, RenderTextureFormat.ARGBFloat);
pCache.normalMap.enableRandomWrite = true;
pCache.normalMap.Create();
// Transfer data
var vcount = pCache.positions.Count;
var vcount_x3 = vcount * 3;
pCache.positionBuffer = new ComputeBuffer(vcount_x3, sizeof(float));
pCache.normalBuffer = new ComputeBuffer(vcount_x3, sizeof(float));
computeShader.SetInt("VertexCount", vcount);
pCache.positionBuffer.SetData(pCache.positions);
pCache.normalBuffer.SetData(pCache.normals);
computeShader.SetBuffer(0, "PositionBuffer", pCache.positionBuffer);
computeShader.SetBuffer(0, "NormalBuffer", pCache.normalBuffer);
computeShader.SetTexture(0, "PositionMap", pCache.positionMap);
computeShader.SetTexture(0, "NormalMap", pCache.normalMap);
computeShader.Dispatch(0, pCache.mapSize / 8, pCache.mapSize / 8, 1);
return(pCache);
}