Shadow artifacts for new booleans in Maya Light and VRay GPUs

[flat]

Rendering Maya 2023's new Boolean system on Maya Light and VRay GPUs reveals facet shadow artifacts.

Attach a test scene

Confirmed with Maya 2023 V-Ray 5, update2.2 (official)

[stezza]

If you change the material to a vraymtl it works fine

[flat]

I tried it in another scene, but VRayMtl is not the solution.

[flat]

The cause was found
The V-Ray GPU shades the polyboolean operand mesh (hidden at render time) and calculates the solution mesh and double shading. (Calculate the completely overlapping surfaces)

If move the solution mesh (polySurface), the double shading disappears.

V-Ray GPU must support it.

[flat]

Is there a Chaos support team here? Isn't this a bug?

[hermit.crab]

flat Thanks for the report. I've logged it (internal bug-tracker id: VGPU-5822) for developer investigation. For now, simply move the polySurface to prevent the overlapping; also, V-Ray lights do not seem to exhibit the issue.

[flat]

Hello, Mr.Aleksandar

Thanks for the Log.
Hopefully this will be improved in the future.