private void ApplyBoneMatricesInternal(SkeletonAnimRigNode node, MeshEntity entity, Matrix4x4[] boneMatrices, float timeStamp, Matrix4x4 parentTransform)
{
string name = node.Name;
Matrix4x4 nodeTransform = node.LocalTransform;
SkeletonAnimChannel animChannel = GetMeshAnimBone(name);
if (animChannel != null)
{
nodeTransform = animChannel.GetMatrixAtTimestamp(timeStamp);
}
Matrix4x4 globalTransform = nodeTransform * parentTransform;
MeshBone bone = BoneIndexFromEntity(entity, name);
if (bone != null)
{
boneMatrices[bone.BoneIndex] = bone.OffsetMatrix * globalTransform;
}
if (node.Children == null)
{
return;
}
for (var i = 0; i < node.Children.Length; i++)
{
SkeletonAnimRigNode child = node.Children[i];
ApplyBoneMatricesInternal(child, entity, boneMatrices, timeStamp, globalTransform);
}
}
private MeshBone BoneIndexFromEntity(MeshEntity entity, string boneName)
{
for (var i = 0; i < entity.Meshes.Length; i++)
{
Mesh mesh = entity.Meshes[i];
if (mesh.Bones == null)
{
continue;
}
for (var j = 0; j < mesh.Bones.Length; j++)
{
MeshBone bone = mesh.Bones[j];
if (bone.Name == boneName)
{
return(bone);
}
}
}
return(null);
}