AnimationProxyManager example shows an animation in which the actor’s geometry or position varies every frame. My own data is a Eular simulation result(like FEM/FVM)，which the geometry(points,polys) are fixed, but pointdata or celldata varies. My question is how to avoid draw the same geometry every frame, in order to reduce overhead, just apply the lookupTable to the mapper. I know I can manually define the requestdata method in the reader class in c++, but how is vtkjs?
You should be able to just make changes to the lookup table, and then call render() to update your scene.