private static void SaveMesh(Mesh mesh, Mesh newMesh, BlendShapeLogic blendShapeLabel)
{
// save mesh as asset
var assetPath = string.Format("{0}{1}", Path.GetFileNameWithoutExtension(mesh.name), ASSET_SUFFIX);
Debug.Log(assetPath);
if (!string.IsNullOrEmpty((AssetDatabase.GetAssetPath(mesh))))
{
var directory = Path.GetDirectoryName(AssetDatabase.GetAssetPath(mesh)).Replace("\\", "/");
assetPath = string.Format("{0}/{1}{2}", directory, Path.GetFileNameWithoutExtension(mesh.name) + "_" + blendShapeLabel.ToString(), ASSET_SUFFIX);
}
else
{
assetPath = string.Format("Assets/{0}{1}", Path.GetFileNameWithoutExtension(mesh.name) + "_" + blendShapeLabel.ToString(), ASSET_SUFFIX);
}
Debug.LogFormat("CreateAsset: {0}", assetPath);
AssetDatabase.CreateAsset(newMesh, assetPath);
}
private static void BuildNewMesh(SkinnedMeshRenderer skinnedMeshRenderer, Dictionary <int, int> newIndexLookUpDict,
Dictionary <int, int[]> subMeshes, BlendShapeLogic blendShapeLabel)
{
// get original mesh data
var materialList = new List <Material>();
skinnedMeshRenderer.GetSharedMaterials(materialList);
var mesh = skinnedMeshRenderer.sharedMesh;
var meshVertices = mesh.vertices;
var meshNormals = mesh.normals;
var meshTangents = mesh.tangents;
var meshColors = mesh.colors;
var meshBoneWeights = mesh.boneWeights;
var meshUVs = mesh.uv;
// build new mesh
var materialListNew = new List <Material>();
var newMesh = new Mesh();
if (mesh.vertexCount > ushort.MaxValue)
{
#if UNITY_2017_3_OR_NEWER
Debug.LogFormat("exceed 65535 vertices: {0}", mesh.vertexCount);
newMesh.indexFormat = UnityEngine.Rendering.IndexFormat.UInt32;
#else
throw new NotImplementedException(String.Format("exceed 65535 vertices: {0}", integrator.Positions.Count.ToString()));
#endif
}
var newDataLength = newIndexLookUpDict.Count;
var newIndexLookUp = newIndexLookUpDict.Keys.ToArray();
newMesh.vertices = newIndexLookUp.Select(x => meshVertices[x]).ToArray();
if (meshNormals.Length > 0)
{
newMesh.normals = newIndexLookUp.Select(x => meshNormals[x]).ToArray();
}
if (meshTangents.Length > 0)
{
newMesh.tangents = newIndexLookUp.Select(x => meshTangents[x]).ToArray();
}
if (meshColors.Length > 0)
{
newMesh.colors = newIndexLookUp.Select(x => meshColors[x]).ToArray();
}
if (meshBoneWeights.Length > 0)
{
newMesh.boneWeights = newIndexLookUp.Select(x => meshBoneWeights[x]).ToArray();
}
if (meshUVs.Length > 0)
{
newMesh.uv = newIndexLookUp.Select(x => meshUVs[x]).ToArray();
}
newMesh.bindposes = mesh.bindposes;
// add BlendShape data
if (blendShapeLabel == BlendShapeLogic.WithBlendShape)
{
for (int i = 0; i < mesh.blendShapeCount; i++)
{
// get original BlendShape data
var srcVertices = new Vector3[mesh.vertexCount];
var srcNormals = new Vector3[mesh.vertexCount];
var srcTangents = new Vector3[mesh.vertexCount];
mesh.GetBlendShapeFrameVertices(i, 0, srcVertices, srcNormals, srcTangents);
// declare the size for the destination array
var dstVertices = new Vector3[newDataLength];
var dstNormals = new Vector3[newDataLength];
var dstTangents = new Vector3[newDataLength];
dstVertices = newIndexLookUp.Select(x => srcVertices[x]).ToArray();
dstNormals = newIndexLookUp.Select(x => srcNormals[x]).ToArray();
dstTangents = newIndexLookUp.Select(x => srcTangents[x]).ToArray();
newMesh.AddBlendShapeFrame(mesh.GetBlendShapeName(i), mesh.GetBlendShapeFrameWeight(i, 0),
dstVertices, dstNormals, dstTangents);
}
}
newMesh.subMeshCount = subMeshes.Count;
var cosMaterialIndex = subMeshes.Keys.ToArray();
// build material list
for (int i = 0; i < subMeshes.Count; i++)
{
newMesh.SetTriangles(subMeshes[cosMaterialIndex[i]], i);
materialListNew.Add(materialList[cosMaterialIndex[i]]);
}
skinnedMeshRenderer.sharedMaterials = materialListNew.ToArray();
skinnedMeshRenderer.sharedMesh = newMesh;
}
private static void BuildNewMesh(SkinnedMeshRenderer skinnedMeshRenderer, Dictionary <int, int> newIndexLookUpDict,
Dictionary <int, int[]> subMeshes, BlendShapeLogic blendShapeLabel)
{
// get original mesh data
var materialList = new List <Material>();
skinnedMeshRenderer.GetSharedMaterials(materialList);
var mesh = skinnedMeshRenderer.sharedMesh;
var meshVertices = mesh.vertices;
var meshNormals = mesh.normals;
var meshTangents = mesh.tangents;
var meshColors = mesh.colors;
var meshBoneWeights = mesh.boneWeights;
var meshUVs = mesh.uv;
// build new mesh
var materialListNew = new List <Material>();
var newMesh = new Mesh();
if (mesh.vertexCount > ushort.MaxValue)
{
#if UNITY_2017_3_OR_NEWER
Debug.LogFormat("exceed 65535 vertices: {0}", mesh.vertexCount);
newMesh.indexFormat = UnityEngine.Rendering.IndexFormat.UInt32;
#else
throw new NotImplementedException(String.Format("exceed 65535 vertices: {0}", integrator.Positions.Count.ToString()));
#endif
}
var newDataLength = newIndexLookUpDict.Count;
var newIndexLookUp = newIndexLookUpDict.Keys.ToArray();
newMesh.vertices = newIndexLookUp.Select(x => meshVertices[x]).ToArray();
if (meshNormals.Length > 0)
{
newMesh.normals = newIndexLookUp.Select(x => meshNormals[x]).ToArray();
}
if (meshTangents.Length > 0)
{
newMesh.tangents = newIndexLookUp.Select(x => meshTangents[x]).ToArray();
}
if (meshColors.Length > 0)
{
newMesh.colors = newIndexLookUp.Select(x => meshColors[x]).ToArray();
}
if (meshBoneWeights.Length > 0)
{
newMesh.boneWeights = newIndexLookUp.Select(x => meshBoneWeights[x]).ToArray();
}
if (meshUVs.Length > 0)
{
newMesh.uv = newIndexLookUp.Select(x => meshUVs[x]).ToArray();
}
newMesh.bindposes = mesh.bindposes;
// add BlendShape data
if (blendShapeLabel == BlendShapeLogic.WithBlendShape)
{
for (int i = 0; i < mesh.blendShapeCount; i++)
{
// get original BlendShape data
var srcVertices = new Vector3[mesh.vertexCount];
var srcNormals = new Vector3[mesh.vertexCount];
var srcTangents = new Vector3[mesh.vertexCount];
mesh.GetBlendShapeFrameVertices(i, 0, srcVertices, srcNormals, srcTangents);
// declare the size for the destination array
var dstVertices = new Vector3[newDataLength];
var dstNormals = new Vector3[newDataLength];
var dstTangents = new Vector3[newDataLength];
dstVertices = newIndexLookUp.Select(x => srcVertices[x]).ToArray();
dstNormals = newIndexLookUp.Select(x => srcNormals[x]).ToArray();
dstTangents = newIndexLookUp.Select(x => srcTangents[x]).ToArray();
newMesh.AddBlendShapeFrame(mesh.GetBlendShapeName(i), mesh.GetBlendShapeFrameWeight(i, 0),
dstVertices, dstNormals, dstTangents);
}
}
newMesh.subMeshCount = subMeshes.Count;
var cosMaterialIndex = subMeshes.Keys.ToArray();
// build material list
for (int i = 0; i < subMeshes.Count; i++)
{
newMesh.SetTriangles(subMeshes[cosMaterialIndex[i]], i);
materialListNew.Add(materialList[cosMaterialIndex[i]]);
}
skinnedMeshRenderer.sharedMaterials = materialListNew.ToArray();
skinnedMeshRenderer.sharedMesh = newMesh;
// save mesh as asset
var assetPath = string.Format("{0}{1}", Path.GetFileNameWithoutExtension(mesh.name), ASSET_SUFFIX);
Debug.Log(assetPath);
if (!string.IsNullOrEmpty((AssetDatabase.GetAssetPath(mesh))))
{
var directory = Path.GetDirectoryName(AssetDatabase.GetAssetPath(mesh)).Replace("\\", "/");
assetPath = string.Format("{0}/{1}{2}", directory, Path.GetFileNameWithoutExtension(mesh.name) + "_" + blendShapeLabel.ToString(), ASSET_SUFFIX);
}
else
{
assetPath = string.Format("Assets/{0}{1}", Path.GetFileNameWithoutExtension(mesh.name) + "_" + blendShapeLabel.ToString(), ASSET_SUFFIX);
}
Debug.LogFormat("CreateAsset: {0}", assetPath);
AssetDatabase.CreateAsset(newMesh, assetPath);
}
