Point cloud + edges rendering with the backface culling

Questions
1

Hi guys.

I have this situation, and I basically happy with the effect.

https://www.babylonjs-playground.com/#P62JIN#14

But, I want backside to not be seen. So basically, I need backface culling. But due to approach with point cloud + edgesRendering, I am not sure how can I achieve this?

In case it’s not possible with the way I did it. I also wouldn’t mind if you guys dropped some other ideas to achieve similar effect + backface culling.

Thanks.

2

So not tested at all but maybe this could work:

  • Turn off color write on the material
  • Render the mesh with front face culling (only rendering the back face)
  • Render your mesh as you are right now

The overall idea is to leverage depth buffer to eliminate your back faces

3

If disabling point clouds is an option, you can use @Deltakosh’s idea by simply disabling color write of your material:

https://www.babylonjs-playground.com/#P62JIN#15

You also need to apply a zoffset to the edge renderer line material so that the lines are not partially hidden by the zbuffer.