LuxCoreRender Forums

tl;dr

See, if any of these suffices:
Physically based light measurement
Irradiance Contour
Irradiance Contour Lines Calibration Problem
IRRADIANCE & GetOutputFloat

TYVM!
Keep it up.

Indeed, you can find a working example @ LuxCoreeRender #blender plugin (discord)

Indeed, camera blur isn't working.
Sadly, I don't know how to add/fix this functionality in BlendLuxCore.
So, for anyone able & willing to tackle this, here's a test scene and compared result to Cycles.

Also, found that emission color of Cycles Principled BSDF doesn't work.

Cycles (4.5.3 ...

Disable roughness and make it micro bumpy
Also note that LuxCore reaches max. roughness at 0'8.

Geo is still there, it's just 'bad' material (invisible). Likely got corrupted in the process. As noticed, make new one.

Seems strange, because on a new scene holdout works as expected.
Or am I doing it wrong

Works fine from my end.

Dade & Sharlybg, thank you both for your work.

Sad, but true...