Axiom.Core.Entity.CacheBoneMatrices C# (CSharp) Method

		protected void CacheBoneMatrices()
		{
			ulong currentFrameCount = Root.Instance.CurrentFrameCount;

			if ( this.frameBonesLastUpdated[ 0 ] == currentFrameCount )
			{
				return;
			}

			// Get the appropriate meshes skeleton here
			// Can use lower LOD mesh skeleton if mesh LOD is manual
			// We make the assumption that lower LOD meshes will have
			//   fewer bones than the full LOD, therefore marix stack will be
			//   big enough.

			// Check for LOD usage
			if ( this.mesh.IsLodManual && this.meshLodIndex > 1 )
			{
				// use lower detail skeleton
				Mesh lodMesh = this.mesh.GetLodLevel( this.meshLodIndex ).ManualMesh;

				if ( !lodMesh.HasSkeleton )
				{
					this.numBoneMatrices = 0;
					return;
				}
			}

			this.skeletonInstance.SetAnimationState( this.animationState );

			this.skeletonInstance.GetBoneMatrices( this.boneMatrices );
			this.frameBonesLastUpdated[ 0 ] = currentFrameCount;

			// TODO: Skeleton instance sharing

			// update the child object's transforms
			foreach ( MovableObject child in this.childObjectList.Values )
			{
				child.ParentNode.Update( true, true );
			}

			// apply the current world transforms to these too, since these are used as
			// replacement world matrices
			Matrix4 worldXform = this.ParentNodeFullTransform;
			this.numBoneMatrices = this.skeletonInstance.BoneCount;

			for ( int i = 0; i < this.numBoneMatrices; i++ )
			{
				this.boneMatrices[ i ] = worldXform * this.boneMatrices[ i ];
			}
		}