public Matrix4[] GetAnimatedOffsetedMatrices(ParentBone rootBone)
{
List <Matrix4> animatePoseMatrices = GetAnimatedNotOffsetedPoseMatricesList();
List <Matrix4> offsetMatrices = rootBone.GetOffsetMatricesList();
List <Matrix4> animateToBoneSpaceMatrices = new List <Matrix4>();
Matrix4 parentOfRootBone = Matrix4.Identity;
TransformFromLocalSpaceToBoneSpace(rootBone, ref parentOfRootBone, animatePoseMatrices, ref animateToBoneSpaceMatrices);
Int32 countOfAnimatedBones = animatePoseMatrices.Count;
Matrix4[] skinningMatrices = new Matrix4[countOfAnimatedBones];
for (Int32 i = 0; i < countOfAnimatedBones; i++)
{
Matrix4 animateMatrix = animateToBoneSpaceMatrices[i];
Matrix4 offsetMatrix = offsetMatrices[i];
skinningMatrices[i] = offsetMatrix * animateMatrix;
}
animatePoseMatrices.Clear();
animateToBoneSpaceMatrices.Clear();
animatePoseMatrices = animateToBoneSpaceMatrices = null;
return(skinningMatrices);
}
private void TransformFromLocalSpaceToBoneSpace(ParentBone parentBone, ref Matrix4 parentMatrix, List <Matrix4> srcTransformation, ref List <Matrix4> dstMatrices)
{
foreach (Bone child in parentBone.GetChildren())
{
Matrix4 currentBoneMatrix = srcTransformation[child.GetId()] * parentMatrix;
dstMatrices.Add(currentBoneMatrix);
GoThroughBoneHierarchy(child, ref currentBoneMatrix, srcTransformation, ref dstMatrices);
}
}
public static EngineParentBone ConvertAssimpBoneToEngineBone(CParser.Assimp.LoaderSkeletonParentBone rootBone)
{
EngineParentBone resultBone = new EngineParentBone();
foreach (var bone in rootBone.GetChildren())
{
EngineBone root = new EngineBone(bone.GetBoneId(), bone.GetBoneInfo().Name, null);
root.SetOffsetMatrix(ConvertAssimpMatrix4x4ToOpenTKMatrix4(bone.GetBoneInfo().OffsetMatrix));
IterateBoneTree(root, bone);
resultBone.AddChildBone(root);
}
return(resultBone);
}
