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- Bugfix again: SkeletonMeshBuilder avoids validation warning for empty bones now. 

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@199 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
pull/1/head
ulfjorensen 2008-10-27 22:22:05 +00:00
parent 093fa3377f
commit d618a57428
1 changed files with 26 additions and 23 deletions
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49
code/SkeletonMeshBuilder.cpp
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@ -162,32 +162,35 @@ void SkeletonMeshBuilder::CreateGeometry( const aiNode* pNode)
mFaces.push_back( Face( vertexStartIndex + 21, vertexStartIndex + 22, vertexStartIndex + 23)); mFaces.push_back( Face( vertexStartIndex + 21, vertexStartIndex + 22, vertexStartIndex + 23));
} }
// create a bone affecting all the newly created vertices
aiBone* bone = new aiBone;
mBones.push_back( bone);
bone->mName = pNode->mName;
// calculate the bone offset matrix by concatenating the inverse transformations of all parents
bone->mOffsetMatrix = aiMatrix4x4( pNode->mTransformation).Inverse();
for( aiNode* parent = pNode->mParent; parent != NULL; parent = parent->mParent)
bone->mOffsetMatrix = aiMatrix4x4( parent->mTransformation).Inverse() * bone->mOffsetMatrix;
// add all the vertices to the bone's influences
unsigned int numVertices = mVertices.size() - vertexStartIndex; unsigned int numVertices = mVertices.size() - vertexStartIndex;
bone->mNumWeights = numVertices; if( numVertices > 0)
bone->mWeights = new aiVertexWeight[numVertices]; {
for( unsigned int a = 0; a < numVertices; a++) // create a bone affecting all the newly created vertices
bone->mWeights[a] = aiVertexWeight( vertexStartIndex + a, 1.0f); aiBone* bone = new aiBone;
mBones.push_back( bone);
bone->mName = pNode->mName;
// HACK: (thom) transform all vertices to the bone's local space. Should be done before adding // calculate the bone offset matrix by concatenating the inverse transformations of all parents
// them to the array, but I'm tired now and I'm annoyed. bone->mOffsetMatrix = aiMatrix4x4( pNode->mTransformation).Inverse();
aiMatrix4x4 boneToMeshTransform = aiMatrix4x4( bone->mOffsetMatrix).Inverse(); for( aiNode* parent = pNode->mParent; parent != NULL; parent = parent->mParent)
for( unsigned int a = vertexStartIndex; a < mVertices.size(); a++) bone->mOffsetMatrix = aiMatrix4x4( parent->mTransformation).Inverse() * bone->mOffsetMatrix;
mVertices[a] = boneToMeshTransform * mVertices[a];
// and finally recurse into the children list // add all the vertices to the bone's influences
for( unsigned int a = 0; a < pNode->mNumChildren; a++) bone->mNumWeights = numVertices;
CreateGeometry( pNode->mChildren[a]); bone->mWeights = new aiVertexWeight[numVertices];
for( unsigned int a = 0; a < numVertices; a++)
bone->mWeights[a] = aiVertexWeight( vertexStartIndex + a, 1.0f);
// HACK: (thom) transform all vertices to the bone's local space. Should be done before adding
// them to the array, but I'm tired now and I'm annoyed.
aiMatrix4x4 boneToMeshTransform = aiMatrix4x4( bone->mOffsetMatrix).Inverse();
for( unsigned int a = vertexStartIndex; a < mVertices.size(); a++)
mVertices[a] = boneToMeshTransform * mVertices[a];
}
// and finally recurse into the children list
for( unsigned int a = 0; a < pNode->mNumChildren; a++)
CreateGeometry( pNode->mChildren[a]);
} }
// ------------------------------------------------------------------------------------------------ // ------------------------------------------------------------------------------------------------