LuxCoreRender Forums

Looks like the Set Suggested Value for Clamp Output is not working correctly but not sure.
Maybe im wrong.
When the Clamp Output is checked or enabled it causes the scene to crash.
Goodnight...

david57 wrote: Mon Apr 23, 2018 5:47 am Looks like the Set Suggested Value for Clamp Output is not working correctly but not sure.
Maybe im wrong.
When the Clamp Output is checked or enabled it causes the scene to crash.
Goodnight...

I need specific details about the crash: how to reproduce problem and/or a test scene causing the crash.

Ok, Im using a test scene from wahn.
It renders beautifully without a crash but when I use the suggested value for the
clamp output it crashes in about 4 minutes.

10 mins with clamp ON. No problem here with old i7 920 and 12gb ram (attached)

It might require more render time or samples.

With this scene, I disabled the Clamp Output and rendered it for 8 hours without a crash.

I will check this problem soon after I finished fixing kintuX's problematic scene.

Re tested the Breakfast_Lux Test Scene with Bi Dir and Clamp On and it crashed after about 12 mins.

david57 wrote: Mon Apr 23, 2018 5:18 pm Ok, Im using a test scene from wahn.
It renders beautifully without a crash but when I use the suggested value for the
clamp output it crashes in about 4 minutes.

I was able to reproduce the problem here and it should be now fixed. It was an out of bound memory access in variance clamping when using metropolis sampler due to yet-another-numerical-precision problem.

You can download a pyluxcore.pyd file with the fix from https://drive.google.com/file/d/1D8tenO ... sp=sharing

Thank you.