//-----------------------------------------------------------------------
    void SubEntity::getRenderOperation(RenderOperation& op)
    {
		// Use LOD
        mSubMesh->_getRenderOperation(op, mParentEntity->mMeshLodIndex);
		// Deal with any vertex data overrides
		op.vertexData = getVertexDataForBinding();

    }
    //-----------------------------------------------------------------------
    void SubEntity::getRenderOperation(RenderOperation& op)
    {
        // Use LOD
        mSubMesh->_getRenderOperation(op, mParentEntity->mMeshLodIndex);
        // Deal with any vertex data overrides
        op.vertexData = getVertexDataForBinding();

        // If we use custom index position the client is responsible to set meaningful values 
        if(mIndexStart != mIndexEnd)
        {
            op.indexData->indexStart = mIndexStart;
            op.indexData->indexCount = mIndexEnd;
        }
    }