How to mask/clip a mesh

[NokFrt]

Is it possible to mask a mesh with a bitmap mask or with another invisible mesh?
I have several scenarios in my mind when this would be useful. For example how to achieve the following:

[Leonidas]

I’ve done something similar myself, though not exactly as you draw in your graphic. Using invisible meshes to occlude things that are behind it:

Use occluder model to hide objects

Hi, I would like to use a 3D model to occlude (hide) some other entities/models inside the scene. As the renderer normally does (object behind other object is hidden). But as a last step I would like not to render that occluder. Is this possible?

In your graphic you do a boolean operation where your plane seems to be cutting the box on the intersection point. That I am not sure there is an easy way to do so (without generating a new mesh).

[Mystik]

@NokFrt I’m looking exactly for the same thing!

Did you solve your problem? Did you use @Leonidas idea? From my understanding, his project works well on an entire mesh but not for a part of it.