Mask occlusion with camera

Omniverse Isaac Sim
1

Isaac Sim Version

4.0.0

Operating System

Windows 10

GPU Information

  • Model: RTX 4090

Topic Description: mask occlusion

Detailed Description

I am trying to mask out areas in a mesh which are occluding (have another mesh behind it with respect to the camera).
In unity, Culling Masks are used for this in the camera’s settings. But I’m not sure how to implement this in Omniverse.
The issue I’m trying to solve:

I have a thin, flat object on a surface which also has grass:

image
image1011×543 127 KB

say for a example, a thin book laying on the grass.
If i raise the book such that not grass is visable through it, then the book seems to be floating above the ground.
I need to mask out the grass mesh pixels which are occluding the book in the camera’s view.

Thank you

3

Unfortunately, this is not possible in Omniverse RTX currently. We work with real 3D geometry and depth occlusion / masking, is not part of that workflow. This is more of a VFX workflow. We do support realtime geometry clipping planes, but that is for the entire scene. There may be future development work on that which includes shapes as well.