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Merge pull request #12242 from hyperlogic/bug-fix/twisted-knees

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Bug fix for twisted knees on some avatars.
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John Conklin II 2018-01-24 16:19:49 -08:00 committed by GitHub
commit 049cf43de0
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1 changed files with 12 additions and 2 deletions
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14
libraries/fbx/src/FBXReader.cpp
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@ -1733,8 +1733,18 @@ FBXGeometry* FBXReader::extractFBXGeometry(const QVariantHash& mapping, const QS
qCDebug(modelformat) << "Joint not in model list: " << jointID;
fbxCluster.jointIndex = 0;
}
fbxCluster.inverseBindMatrix = glm::inverse(cluster.transformLink) * modelTransform;
// slam bottom row to (0, 0, 0, 1), we KNOW this is not a perspective matrix and
// sometimes floating point fuzz can be introduced after the inverse.
fbxCluster.inverseBindMatrix[0][3] = 0.0f;
fbxCluster.inverseBindMatrix[1][3] = 0.0f;
fbxCluster.inverseBindMatrix[2][3] = 0.0f;
fbxCluster.inverseBindMatrix[3][3] = 1.0f;
fbxCluster.inverseBindTransform = Transform(fbxCluster.inverseBindMatrix);
extracted.mesh.clusters.append(fbxCluster);
// override the bind rotation with the transform link
@ -1836,13 +1846,13 @@ FBXGeometry* FBXReader::extractFBXGeometry(const QVariantHash& mapping, const QS
}
// now that we've accumulated the most relevant weights for each vertex
// normalize and compress to 8-bits
// normalize and compress to 16-bits
extracted.mesh.clusterWeights.fill(0, numClusterIndices);
int numVertices = extracted.mesh.vertices.size();
for (int i = 0; i < numVertices; ++i) {
int j = i * WEIGHTS_PER_VERTEX;
// normalize weights into uint8_t
// normalize weights into uint16_t
float totalWeight = weightAccumulators[j];
for (int k = j + 1; k < j + WEIGHTS_PER_VERTEX; ++k) {
totalWeight += weightAccumulators[k];