Hi,
I have a scene with 135k hair using xgen and each time I want to render zooming in close, I get this message. Error: line 1: V-Ray : Building Embree Static Hair Tree failed: [CommitEmbreeThread::threadProc] 4: Committing scene failed
To fix it, I have to zoom out, start rendering and then zoom back in :s
Another issue is working with AlSurface shader. there is a “remap value” to control the reflection1 roughness and just out of the blue from 1 render to another, the roughness is gone… It looks it’s still there but as if the value was at 1.0… If I decrease it to 0.5, still nothing but If I get it down to 0.2 then the roughness is back… Really strange.
Regarding the first issue, you may be running out of memory. Try monitoring your RAM utilization and see if that is indeed the case.
Regarding the second issue - does this happen on V-Ray CPU or GPU? Are you using a particular map in that slot? Could you attach a video reproduction of the issue and/or screencaps? Otherwise, it would be best to send a simplified scene to support@chaosgroup.com so we can take a look. Mention this thread in the e-mail along with your V-Ray and host platform versions.
Yes you’re right about the first issue… The loaded scene takes around 13 Go and when I start rendering, the 150k hair takes the rest of memory up to 32 Go and that’s all I have. I’m glad not having to render a creature with millions of hair as I wonder how much memory I’d need for it.
For the second, it’s CPU and the texture is a multiple tiles black and white texture in the remap… But I had other issues as I think it comes from the AlSurface and started another thread ( Reflection changes depending on camera focal length. - Issues - Chaos Forum ) and provided support a simplified scene where I could reproduce the issue.