Holes in meshes?

[Lales.Charles]

Hi,

Is there any way to extrude some meshes?

For example here, I would try to use the blue box to generate a hole in the red panel, at end hidding the blue box of course.

Alternatively using a decal? Another approach?

Regards,
Charles

[silent]

Hi Charles,

Mesh boolean operations are required for that kind of task, I'm afraid.

You can try to integrate one of the 3rd party libraries that can do that, such as:

• Meshlib: https://github.com/MeshInspector/MeshLib
• mcut: https://github.com/cutdigital/mcut
• CGAL: https://github.com/CGAL/cgal

Thanks!

[Amerio.Stephane]

Hi, I think Charles would be OK with a shader based solution (so no mesh boolean, just a visualization of the boolean result).

One classic solution would have been to use the stencil buffer, with dedicated material graph, but I couldn't find anything stencil related in Unigine.

In his specific case, the cutter is always a collection of boxes, and the cut object is also always a box (similar to a thin wall with movable doors and windows)

EDIT: the goal is to do the edit/visualization inside the editor, not in a runtime app.

Edited 12 hours ago by Amerio.Stephane