Bought a (for me) new pc, besides the IMac and it’s doing nice path tracing as a test.
However when I want to test with higher samples and bounces it crashes.
Samples at 300 and 10 bounces is doing well, when selecting 700 and 20 bounces samples it crashes when rendering is about 80% and then I am getting a black screen and I have to manual switch the computer off and on again.
The given solution with TdrDelay does not work.
The latest gpu driver neither.
My pc:
RTX 3090 24gb
Ryzen 7 3700x
32 gb 2666
850w gold
It’s ok, because it does work at lower values, but I am curious what to expect with bigger projects later and video, because I did not test yet.
I want to start with a big project soon, much bigger garden etc.
I now see the Polygons and textures on this project are already quite big I suppose? (Having no reference at the moment.)
(Btw the attachement shows 59fps, but this is the lowest I get.. at high settings, normally it very high, and everything works fine.)
It strange because it does work with lower samples and with GPU stress tests like Furmark and Heaven benchmark tool the GPu I can not get it to crash.
Based on your specs, I'm not entirely sure what might be causing the issue. I just tested this in Twinmotion's Lakehouse demo scene, which is comparable to your scene (6.2M Polygons, 0.3K Objects, 2.3GB Textures) on a machine using an RTX 3080 10GB and running Path Tracer with 700 samples per pixel and 20 bounces and didn't encounter this issue. Your GPU is among the most powerful available right now, so the extra 4M polygons shouldn't pose much of a problem, although that still may be a possibility.
What I think might be more likely is that your RAM might be the issue here, which seems likely if you have multiple programs open, such as the CAD program you imported model from, web browsers, etc. I suspect your model might use more RAM than the Lakehouse demo scene, which you can try checking on your end with Task Manager. If RAM might be the case, then upgrading your RAM capacity should help
Thanks for your answer, and even for testing to compare.
I was in doubt to add extra Ram, because then the pc would be quite optimal together with the 3090. (The cpu not maybe.. but I suppose that’s not the problem..)
btw: no other programs were active during this.
For now I can use it with the lower values.. and we will see how it will handle bigger projects soon..
