Why is image with PGIC darker than without?

[FarbigeWelt]

I will try to find a workaround but it may be not even possible.

I have found a ways to workaround the problem and now the scene should work fine on AMD GPUs too.

Great! It is fantastic how creative you solve issues.

I will check the solution this evening if latest build includes your workaround.

[FarbigeWelt]

I have found a ways to workaround the problem and now the scene should work fine on AMD GPUs too.

Perfect, it works now on AMD GPUs too, as you can see here. (LuxCoreRender 2.2 beta 1, build 29e0582)

Organic Figurine, openCL, indir and caustic cache, tone map linear fixed. 774 samples

Organic Figurine, openCL, without cache, tone map linear fixed. 758 samples

The images have indeed the same brightness now. Thanks a lot.