Hi, here is the file.
https://drive.google.com/file/d/13TIrYy ... sp=sharing
Inside of it, there is the 16baked map and precedural noises.
You can use cycles and the procedural map for the best results, regardless of how close you are to the surface. That's what I expected.
There is also the 16k map in the cycles material tree to have a reference.
If you then swith to luxcore the 16k map is plug into the bump. The result is similar to the 16k cycles viewport rendering, which is good, but I want to get away from maps with such a resolution.
Then I tried to pipe this 16k map trough a triplanar bump, resulting in flat looking reflections.
Next is the Blender Stucci procedural map, remapped to fit the greyscale of the 16kmap, resulting in flat looking reflections. Then my though was: "Maybe these blender procedural maps aren't integrated well in luxcore". This is why I tried the fBM with clamped values from 0-1. But the result is also flat.
Keep an eye on the edge of the red material in the bottom left, where the light fades out. This is a good place to spot the bump.
Thanks for helping