LuxCoreRender Forums

Just look like carpaint shader is broken. It is emissive even in low light condition.

Yes, using pure 100% white Specular channels can do that.
For reference check Carpaint's Preset: "White" to get to see it physically-based.

+ protip: I also strongly advise use of LookDev accessories (colorchecker, gray & mirror ball) for lighting or CC/TM reference and later calibration with Material tests/study scenes. You know, like real pro...

Ahh don't even noticed it. but this is not good like this. i mean theses are preset : preset should not be confusing like that.
As user you always feel like error come from you. because you're facing preset.

That's why "protip" seemed in place

I happen to have color checker:

All materials should be energy conserving.. I consider this a bug.