public void LoadFrom(MeshBuffers meshBuffers, bool welded = false)
{
vertexCount = meshBuffers.vertexCount;
vertexTriangles.Allocate(vertexCount, vertexCount * 8);
vertexVertices.Allocate(vertexCount, vertexCount * 8);
vertexWelded.Allocate(vertexCount, vertexCount);
ArrayUtils.ResizeCheckedIfLessThan(ref vertexResolve, vertexCount);
triangleCount = meshBuffers.triangleCount / 3;
triangleTriangles.Allocate(triangleCount, triangleCount * 8);
triangleVertices.Allocate(triangleCount, triangleCount * 3);
int[] triangles = meshBuffers.triangles;
// build vertex-triangle
{
for (int i = 0; i != triangleCount; i++)
{
int _0 = i * 3;
int v0 = triangles[_0 + 0];
int v1 = triangles[_0 + 1];
int v2 = triangles[_0 + 2];
vertexTriangles.Append(v0, i);
vertexTriangles.Append(v1, i);
vertexTriangles.Append(v2, i);
}
}
// build vertex-welded
unsafe
{
if (welded)
{
// for each vertex
// if vertex != closest vertex
// replace references to vertex with closest vertex
triangles = triangles.Clone() as int[];
using (var vertexWeldedMap = new UnsafeArrayBool(meshBuffers.vertexCount))
{
vertexWeldedMap.Clear(false);
var vertexBSP = new KdTree3(meshBuffers.vertexPositions, meshBuffers.vertexCount);
for (int i = 0; i != vertexCount; i++)
{
int j = vertexBSP.FindNearest(ref meshBuffers.vertexPositions[i]);
if (j != i)
{
//Debug.Assert(vertexWeldedMap.val[j] == false);
// replace references to i with j, keeping j
foreach (var triangle in vertexTriangles[i])
{
int _0 = triangle * 3;
int v0 = triangles[_0 + 0];
int v1 = triangles[_0 + 1];
//..v2 = triangles[_0 + 2];
if (v0 == i)
{
triangles[_0 + 0] = j;
}
else if (v1 == i)
{
triangles[_0 + 1] = j;
}
else // (v2 == i)
{
triangles[_0 + 2] = j;
}
// store i under j, so we can recover i at a later time
if (vertexWeldedMap.val[i] == false)
{
vertexWeldedMap.val[i] = true;
vertexWelded.Append(j, i);
}
}
}
}
}
// rebuild vertex-triangle
vertexTriangles.Clear();
for (int i = 0; i != triangleCount; i++)
{
int _0 = i * 3;
int v0 = triangles[_0 + 0];
int v1 = triangles[_0 + 1];
int v2 = triangles[_0 + 2];
vertexTriangles.Append(v0, i);
vertexTriangles.Append(v1, i);
vertexTriangles.Append(v2, i);
}
}
}
// build vertex-resolve
{
for (int i = 0; i != vertexCount; i++)
{
vertexResolve[i] = i;
}
for (int i = 0; i != vertexCount; i++)
{
foreach (var j in vertexWelded[i])
{
vertexResolve[j] = i;
}
}
}
// build vertex-vertex
unsafe
{
using (var vertexAdded = new UnsafeArrayBool(vertexCount))
{
vertexAdded.Clear(false);
for (int i = 0; i != vertexCount; i++)
{
foreach (int triangle in vertexTriangles[i])
{
int _0 = triangle * 3;
int v0 = triangles[_0 + 0];
int v1 = triangles[_0 + 1];
int v2 = triangles[_0 + 2];
int vA, vB;
if (i == v0)
{
vA = v1;
vB = v2;
}
else if (i == v1)
{
vA = v2;
vB = v0;
}
else // (i == v2)
{
vA = v0;
vB = v1;
}
if (vertexAdded.val[vA] == false && (vertexAdded.val[vA] = true))
{
vertexVertices.Append(i, vA);
}
if (vertexAdded.val[vB] == false && (vertexAdded.val[vB] = true))
{
vertexVertices.Append(i, vB);
}
}
foreach (int j in vertexVertices[i])
{
vertexAdded.val[j] = false;
}
}
}
}
// build triangle-triangle
unsafe
{
using (var triangleAdded = new UnsafeArrayBool(triangleCount))
{
triangleAdded.Clear(false);
for (int i = 0; i != triangleCount; i++)
{
int _0 = i * 3;
int v0 = triangles[_0 + 0];
int v1 = triangles[_0 + 1];
int v2 = triangles[_0 + 2];
triangleAdded.val[i] = true;
foreach (int j in vertexTriangles[v0])
{
if (triangleAdded.val[j] == false && (triangleAdded.val[j] = true))
{
triangleTriangles.Append(i, j);
}
}
foreach (int j in vertexTriangles[v1])
{
if (triangleAdded.val[j] == false && (triangleAdded.val[j] = true))
{
triangleTriangles.Append(i, j);
}
}
foreach (int j in vertexTriangles[v2])
{
if (triangleAdded.val[j] == false && (triangleAdded.val[j] = true))
{
triangleTriangles.Append(i, j);
}
}
triangleAdded.val[i] = false;
foreach (int j in triangleTriangles[i])
{
triangleAdded.val[j] = false;
}
}
}
}
// build triangle-vertex
{
for (int i = 0; i != triangleCount; i++)
{
int _0 = i * 3;
int v0 = triangles[_0 + 0];
int v1 = triangles[_0 + 1];
int v2 = triangles[_0 + 2];
triangleVertices.Append(i, v0);
triangleVertices.Append(i, v1);
triangleVertices.Append(i, v2);
}
}
}
static void ImportClip(SkinDeformationClip clip)
{
var sourceObjsPreloaded = null as NativeMeshSOA[];
try
{
var progressTitle = "Importing '" + clip.name + "'";
var progressIndex = 0;
var progressCount = 4.0f;
EditorUtility.DisplayProgressBar(progressTitle, "Loading assets", progressIndex++ / progressCount);
var sourceObjPaths = null as string[];
var sourceMeshAssets = null as Mesh[];
var sourceAlbedoAssets = null as Texture2D[];
var referenceObjPath = clip.settings.referenceObjPath;
var referenceMeshAsset = clip.settings.referenceMeshAsset;
var referenceIsFirstFrame = clip.settings.referenceIsFirstFrame;
int frameCount = 0;
int frameVertexCount = 0;
int frameFaceIndicesCount = 0;
var useExternalLoader = (clip.settings.sourceFrom == SkinDeformationClip.SourceType.ExternalObj);
if (useExternalLoader)
{
sourceObjPaths = GetFilesAtPath(clip.settings.externalObjPath, clip.settings.externalObjPattern);
Debug.Assert(sourceObjPaths.Length > 0, "source obj count == 0 (check import settings)");
if (referenceIsFirstFrame)
{
referenceObjPath = sourceObjPaths[0];
sourceObjPaths = sourceObjPaths.Skip(1).ToArray();
}
using (var nativeMesh = NativeMeshObjLoader.Parse(referenceObjPath))
{
frameCount = sourceObjPaths.Length;
frameVertexCount = nativeMesh.vertexCount;
frameFaceIndicesCount = nativeMesh.faceIndicesCount;
}
if (clip.settings.externalObjPreloadThreaded)
{
sharedJobData.paths = sourceObjPaths;
sharedJobData.vertexAttribs = NativeMeshObjLoader.VertexAttribs.Position; // ignored for now
sharedJobData.vertexOrder = NativeMeshObjLoader.VertexOrder.ByDefinition;
sharedJobData.result = new NativeMeshSOA[sourceObjPaths.Length];
sharedJobData.resultTouched = new bool[sourceObjPaths.Length];
for (int i = 0; i != sharedJobData.result.Length; i++)
{
sharedJobData.result[i].Allocate(frameVertexCount, frameFaceIndicesCount, Allocator.Persistent);
}
unsafe
{
fixed(bool *resultTouched = sharedJobData.resultTouched)
{
var jobDef = new ObjLoaderJob();
var job = jobDef.Schedule(sourceObjPaths.Length, 1);
JobHandle.ScheduleBatchedJobs();
while (true)
{
int numTotal = sourceObjPaths.Length;
int numTouched = 0;
for (int i = 0; i != numTotal; i++)
{
if (resultTouched[i])
{
numTouched++;
}
}
EditorUtility.DisplayProgressBar(progressTitle, "Loading assets (" + numTouched + " / " + numTotal + ")", (progressIndex - 1 + ((float)numTouched / numTotal)) / progressCount);
if (job.IsCompleted)
{
break;
}
}
job.Complete();
}
}
sourceObjsPreloaded = sharedJobData.result;
}
}
else
{
sourceMeshAssets = GetAssetsAtPath <Mesh>(clip.settings.meshAssetFolder, clip.settings.meshAssetPrefix);
Debug.Assert(sourceMeshAssets.Length > 0, "source mesh count == 0 (check import settings)");
sourceAlbedoAssets = GetAssetsAtPath <Texture2D>(clip.settings.albedoAssetFolder, clip.settings.albedoAssetPrefix);
if (sourceAlbedoAssets.Length != sourceMeshAssets.Length)
{
sourceAlbedoAssets = null;
Debug.LogWarning("source albedo count != mesh count (SKIPPING albedo assets)");
}
if (referenceIsFirstFrame)
{
referenceMeshAsset = sourceMeshAssets[0];
sourceMeshAssets = sourceMeshAssets.Skip(1).ToArray();
if (sourceAlbedoAssets != null)
{
sourceAlbedoAssets = sourceAlbedoAssets.Skip(1).ToArray();
}
}
Debug.Assert(referenceMeshAsset != null);
frameCount = sourceMeshAssets.Length;
frameVertexCount = referenceMeshAsset.vertexCount;
}
Debug.Log("frameCount: " + frameCount);
Debug.Log("frameVertexCount: " + frameVertexCount);
int frameFittedWeightsCount = 0; // modified later
var frames = new SkinDeformation[frameCount];
int subframeCount = frameCount - 1;
var subframes = new SkinDeformationClip.Subframe[subframeCount];
MeshBuffers meshBuffers = new MeshBuffers(frameVertexCount);
MeshBuffers meshBuffersReference = new MeshBuffers(frameVertexCount);
MeshAdjacency weldedAdjacency = new MeshAdjacency(meshBuffersReference, clip.settings.solveWelded);
EditorUtility.DisplayProgressBar(progressTitle, "Importing frames", progressIndex++ / progressCount);
{
var sourceRotation = Quaternion.Euler(clip.settings.applyRotation);
var sourceScale = clip.settings.applyScaling;
if (useExternalLoader)
{
using (var referenceObj = NativeMeshObjLoader.Parse(referenceObjPath))
{
meshBuffersReference.LoadFrom(referenceObj);
meshBuffersReference.ApplyRotation(sourceRotation);
meshBuffersReference.ApplyScale(sourceScale);
}
}
else
{
meshBuffersReference.LoadFrom(referenceMeshAsset);
meshBuffersReference.ApplyRotation(sourceRotation);
meshBuffersReference.ApplyScale(sourceScale);
}
var denoiseIndices = ResolveIndexArrayFromVertexSelectionArray(clip.settings.denoiseRegions, weldedAdjacency);
var denoiseFactor = clip.settings.denoiseStrength;
if (denoiseFactor < float.Epsilon)
{
denoiseIndices = new int[0];
}
var transplantIndices = ResolveIndexArrayFromVertexSelectionArray(clip.settings.transplantRegions, weldedAdjacency);
var transplantFactor = clip.settings.transplantStrength;
if (transplantFactor < float.Epsilon)
{
transplantIndices = new int[0];
}
#if SOLVE_FULL_LAPLACIAN
var laplacianConstraintCount = frameVertexCount;
var laplacianConstraintIndices = null as int[];
unsafe
{
using (var laplacianFreeVertexMap = new UnsafeArrayBool(frameVertexCount))
{
laplacianFreeVertexMap.Clear(false);
for (int k = 0; k != denoiseIndices.Length; k++)
{
if (laplacianFreeVertexMap.val[denoiseIndices[k]] == false)
{
laplacianFreeVertexMap.val[denoiseIndices[k]] = true;
laplacianConstraintCount--;
}
}
for (int k = 0; k != transplantIndices.Length; k++)
{
if (laplacianFreeVertexMap.val[transplantIndices[k]] == false)
{
laplacianFreeVertexMap.val[transplantIndices[k]] = true;
laplacianConstraintCount--;
}
}
laplacianConstraintIndices = new int[laplacianConstraintCount];
for (int i = 0, k = 0; i != frameVertexCount; i++)
{
if (laplacianFreeVertexMap.val[i] == false)
{
laplacianConstraintIndices[k++] = i;
}
}
}
}
#else
var laplacianROIIndices = denoiseIndices.Union(transplantIndices).ToArray();
var laplacianConstraintCount = frameVertexCount - laplacianROIIndices.Length;
#endif
#if SOLVE_FULL_LAPLACIAN
var laplacianTransform = null as MeshLaplacianTransform;
#else
var laplacianTransform = null as MeshLaplacianTransformROI;
#endif
var meshLaplacian = new MeshLaplacian();
var meshLaplacianDenoised = new MeshLaplacian();
var meshLaplacianReference = new MeshLaplacian();
var laplacianResolve = (laplacianConstraintCount < frameVertexCount);
if (laplacianResolve)
{
#if SOLVE_FULL_LAPLACIAN
laplacianTransform = new MeshLaplacianTransform(weldedAdjacency, laplacianConstraintIndices);
#else
laplacianTransform = new MeshLaplacianTransformROI(weldedAdjacency, laplacianROIIndices, 0);
{
for (int i = 0; i != denoiseIndices.Length; i++)
{
denoiseIndices[i] = laplacianTransform.internalFromExternal[denoiseIndices[i]];
}
for (int i = 0; i != transplantIndices.Length; i++)
{
transplantIndices[i] = laplacianTransform.internalFromExternal[transplantIndices[i]];
}
}
#endif
laplacianTransform.ComputeMeshLaplacian(meshLaplacianDenoised, meshBuffersReference);
laplacianTransform.ComputeMeshLaplacian(meshLaplacianReference, meshBuffersReference);
}
for (int i = 0; i != frameCount; i++)
{
EditorUtility.DisplayProgressBar(progressTitle, "Importing frames (" + (i + 1) + " / " + frameCount + ")", (progressIndex - 1 + ((float)i / frameCount)) / progressCount);
if (useExternalLoader)
{
if (clip.settings.externalObjPreloadThreaded)
{
meshBuffers.LoadFrom(sourceObjsPreloaded[i]);
}
else
{
using (var sourceObj_i = NativeMeshObjLoader.Parse(sourceObjPaths[i]))
{
meshBuffers.LoadFrom(sourceObj_i);
}
}
meshBuffers.ApplyRotation(sourceRotation);
meshBuffers.ApplyScale(sourceScale);
}
else
{
meshBuffers.LoadFrom(sourceMeshAssets[i]);
meshBuffers.ApplyRotation(sourceRotation);
meshBuffers.ApplyScale(sourceScale);
}
if (meshBuffers.vertexCount != frameVertexCount)
{
Debug.LogWarning("frame " + i + " has " + meshBuffers.vertexCount + " vertices (expected " + frameVertexCount + ")");
}
if (laplacianResolve)
{
laplacianTransform.ComputeMeshLaplacian(meshLaplacian, meshBuffers);
double historyFactor = denoiseFactor;
foreach (int j in denoiseIndices)
{
double dx = denoiseFactor * meshLaplacianDenoised.vertexDifferentialX[j] + (1.0 - denoiseFactor) * meshLaplacian.vertexDifferentialX[j];
double dy = denoiseFactor * meshLaplacianDenoised.vertexDifferentialY[j] + (1.0 - denoiseFactor) * meshLaplacian.vertexDifferentialY[j];
double dz = denoiseFactor * meshLaplacianDenoised.vertexDifferentialZ[j] + (1.0 - denoiseFactor) * meshLaplacian.vertexDifferentialZ[j];
meshLaplacian.vertexDifferentialX[j] = dx;
meshLaplacian.vertexDifferentialY[j] = dy;
meshLaplacian.vertexDifferentialZ[j] = dz;
meshLaplacianDenoised.vertexDifferentialX[j] = dx;
meshLaplacianDenoised.vertexDifferentialY[j] = dy;
meshLaplacianDenoised.vertexDifferentialZ[j] = dz;
}
foreach (int j in transplantIndices)
{
meshLaplacian.vertexDifferentialX[j] = transplantFactor * meshLaplacianReference.vertexDifferentialX[j] + (1.0 - transplantFactor) * meshLaplacian.vertexDifferentialX[j];
meshLaplacian.vertexDifferentialY[j] = transplantFactor * meshLaplacianReference.vertexDifferentialY[j] + (1.0 - transplantFactor) * meshLaplacian.vertexDifferentialY[j];
meshLaplacian.vertexDifferentialZ[j] = transplantFactor * meshLaplacianReference.vertexDifferentialZ[j] + (1.0 - transplantFactor) * meshLaplacian.vertexDifferentialZ[j];
}
laplacianTransform.ResolveMeshBuffers(meshBuffers, meshLaplacian);
meshBuffers.RecalculateNormals(weldedAdjacency);
meshBuffers.ApplyWeldedChanges(weldedAdjacency);
}
frames[i].SetAlbedo(sourceAlbedoAssets != null ? sourceAlbedoAssets[i] : null);
frames[i].SetDeltas(meshBuffersReference, meshBuffers);
}
for (int i = 0; i != subframeCount; i++)
{
subframes[i].frameIndexLo = i;
subframes[i].frameIndexHi = i + 1;
subframes[i].fractionLo = 0.0f;
subframes[i].fractionHi = 1.0f;
}
if (clip.settings.keyframes)
{
ImportFrameIntervalsFromCSV(clip.settings.keyframesCSV, frameCount - 1, ref subframeCount, ref subframes);
}
}
EditorUtility.DisplayProgressBar(progressTitle, "Transferring frames", progressIndex++ / progressCount);
if (clip.settings.transferTarget != null)
{
var targetBuffers = new MeshBuffers(clip.settings.transferTarget);
var targetVertexCount = targetBuffers.vertexCount;
var targetVertexResolve = new int[targetVertexCount];
Debug.LogFormat("transferMode: {0}", clip.settings.transferMode);
Debug.LogFormat("targetVertexCount: {0}", targetVertexCount);
switch (clip.settings.transferMode)
{
case SkinDeformationClip.ImportSettings.TransferMode.ByVertexIndex:
{
Debug.Assert(frameVertexCount == targetVertexCount, "target vertex count does not match reference vertex count");
for (int i = 0; i != targetVertexCount; i++)
{
targetVertexResolve[i] = i;
}
}
break;
case SkinDeformationClip.ImportSettings.TransferMode.ByVertexPosition:
{
var referenceBSP = new KdTree3(meshBuffersReference.vertexPositions, meshBuffersReference.vertexCount);
var referenceDelta2Max = 0.0f;
var referenceDelta2Count = 0;
var referenceDelta2Threshold = 1e-10f;
for (int i = 0; i != targetVertexCount; i++)
{
targetVertexResolve[i] = referenceBSP.FindNearest(ref targetBuffers.vertexPositions[i]);
}
for (int i = 0; i != targetVertexCount; i++)
{
Vector3 posTarget = targetBuffers.vertexPositions[i];
Vector3 posReference = meshBuffersReference.vertexPositions[targetVertexResolve[i]];
var delta2 = Vector3.SqrMagnitude(posTarget - posReference);
if (delta2 > referenceDelta2Threshold)
{
referenceDelta2Max = Mathf.Max(delta2, referenceDelta2Max);
referenceDelta2Count++;
}
}
if (referenceDelta2Count > 0)
{
Debug.LogWarning("some (" + referenceDelta2Count + ") target vertices were far from reference (max delta: " + referenceDelta2Max + ")");
}
}
break;
}
var targetDeltaPositions = new Vector3[targetVertexCount];
var targetDeltaNormals = new Vector3[targetVertexCount];
for (int frameIndex = 0; frameIndex != frameCount; frameIndex++)
{
EditorUtility.DisplayProgressBar(progressTitle, "Transferring frames (" + (frameIndex + 1) + " / " + frameCount + ")", (progressIndex - 1 + ((float)frameIndex / frameCount)) / progressCount);
for (int i = 0; i != targetVertexCount; i++)
{
int j = targetVertexResolve[i]; // reference index
targetDeltaPositions[i] = frames[frameIndex].deltaPositions[j];
targetDeltaNormals[i] = frames[frameIndex].deltaNormals[j];
}
ArrayUtils.ResizeChecked(ref frames[frameIndex].deltaPositions, targetVertexCount);
ArrayUtils.ResizeChecked(ref frames[frameIndex].deltaNormals, targetVertexCount);
ArrayUtils.CopyChecked(targetDeltaPositions, ref frames[frameIndex].deltaPositions, targetVertexCount);
ArrayUtils.CopyChecked(targetDeltaNormals, ref frames[frameIndex].deltaNormals, targetVertexCount);
}
frameVertexCount = targetVertexCount;
/*
* switch (clip.importSettings.transferMode)
* {
* case SkinDeformationClip.TransferMode.PassThrough:
* {
* // clean copy
* }
* break;
*
* case SkinDeformationClip.TransferMode.PassThroughWithFirstFrameDelta:
* {
* buffersFrameX.LoadFrom(clip.importSettings.transferTarget);
*
* Vector3 anchorOrigin = buffersFrame0.CalcMeshCenter();
* Vector3 anchorTarget = buffersFrameX.CalcMeshCenter();
* Vector3 offsetTarget = anchorOrigin - anchorTarget;
* for (int j = 0; j != frameVertexCount; j++)
* {
* buffersFrameX.vertexPositions[j] += offsetTarget;
* }
*
* SkinDeformation firstFrameDelta;
* firstFrameDelta = new SkinDeformation();
* firstFrameDelta.SetDeltas(buffersFrameX, buffersFrame0);
*
* for (int i = 0; i != frameCount; i++)
* {
* EditorUtility.DisplayProgressBar(progressTitle, "Retargeting frames", (progressIndex - 1 + ((float)i / frameCount)) / progressCount);
*
* for (int j = 0; j != frameVertexCount; j++)
* {
* frames[i].deltaPositions[j] += firstFrameDelta.deltaPositions[j];
* frames[i].deltaNormals[j] += firstFrameDelta.deltaNormals[j];
* }
* }
* }
* break;
* }
*/
}
EditorUtility.DisplayProgressBar(progressTitle, "Fitting frames to blend shapes", progressIndex++ / progressCount);
if (clip.settings.transferTarget != null)
{
if (clip.settings.fitToBlendShapes)
{
frameFittedWeightsCount = clip.settings.transferTarget.blendShapeCount;
}
else
{
frameFittedWeightsCount = 0;
}
for (int i = 0; i != frameCount; i++)
{
frames[i].fittedWeights = new float[frameFittedWeightsCount];
}
if (frameFittedWeightsCount > 0)
{
var blendShapeIndicesCommaSep = clip.settings.fittedIndices;
var blendShapeIndices = Array.ConvertAll <string, int>(blendShapeIndicesCommaSep.Split(','), int.Parse);
SkinDeformationFitting.FitFramesToBlendShapes(frames, clip.settings.transferTarget, blendShapeIndices, clip.settings.fittingMethod, clip.settings.fittingParam);
}
}
else
{
for (int i = 0; i != frameCount; i++)
{
frames[i].fittedWeights = new float[0];
}
}
EditorUtility.DisplayProgressBar(progressTitle, "Saving binary", progressIndex++ / progressCount);
{
clip.settingsLastImported = clip.settings.Clone();
clip.frameCount = frameCount;
clip.frameVertexCount = frameVertexCount;
clip.frameFittedWeightsCount = frameFittedWeightsCount;
clip.frames = frames;
clip.framesContainAlbedo = (frames[0].albedo != null);
clip.framesContainDeltas = (frames[0].deltaPositions.Length > 0);
clip.framesContainFittedWeights = (frames[0].fittedWeights.Length > 0);
clip.subframeCount = subframeCount;
clip.subframes = subframes;
clip.version++;
EditorUtility.SetDirty(clip);
AssetDatabase.SaveAssets();
clip.SaveFrameData();
}
}
catch (Exception ex)
{
Debug.LogError(ex);
}
finally
{
if (sourceObjsPreloaded != null)
{
for (int i = 0; i != sourceObjsPreloaded.Length; i++)
{
sourceObjsPreloaded[i].Dispose();
}
sourceObjsPreloaded = null;
}
EditorUtility.ClearProgressBar();
}
}