Windows 10 - GPU GTX 970 - CPU 5820K
Latest master built on own machine 2018-03-13
Same problem on 2.78c - check for consistency
Short description of error
Have been having this problem with a scene of mine for past few weeks. Decided I would make simplified version of the problem for debugging (attached).
Blender crashes when I render the attached scene (nearly) every time (render never completes - occasionally get CUDA error - see * below).
Scene has just one high poly object in it. Material rendering with bump rather than displacement but using material displacement input.
If I alter the atatched scene in the following ways
When displacement not connected - no crash When diffuse connected and not glass as surface - no crash When not GPU used - no crash When displacement and glass reconnected - crash
When using low poly object - no crash
Memory use on renders which don't crash Mem 2034 Peak 2058/Mem 1907 - Peak 1931 depending on whether bump used or not - either way should not be a problem for the CPU.
*Rather than crash a few times I have had CUDA errors appear. I have tried to change my TDr_level to 60 seconds (from usual 15) as a way to combat this - but still could not get it to render. Although it did not crash 30 mins later it was still at 1% render complete (other renders for example diffuse take on average 30 seconds).
I am not using microdisplacement as I definitely don't have room on graphics card for that.
Exact steps for others to reproduce the error
Load the scene and hit render.