Hi everybody. I get some artifacts when I render with GPU compute in cycles. When I render with CPU, its fine. 800 Samples. Even with 2000 samples, they are still there. Did denoising, switched off caustics, no volumetric scattering..
Anyone knows what it could be? I have a gtx 2070 max q.
Thanks :)
What kind of artefacts?
When I Google gtx 2070 max q, I get Nvidia RTX 2070 results...
In your Preferences > System > Cycles Render Devices, do you have RTX enabled?
Don't know if that makes any diference; can't check that, I can't even render on my GPU; it's that old;)
I did!
I gather you mean the noise...
What does it look like on CPU?
I do not know why there would be a difference between a CPU and a GPU render....
In the 'old' days, before RTX, a CPU (and this is highly simplified!) would have Order(10) intelligent calculating units (cores) and a GPU would have Order(1000) 'dumm' calculating units.
But they should still get the same result...
I'd say, post a link to your .blend file here.
Somebody might be able to figure this out.
This is not supposed to be like this!
Looks way better without Denoising, would just need more Samples to get rid of the noise;)
But I still don't know why it makes a difference whether you render on CPU or GPU.....
Is there a difference in noise between CPU and GPU renders?
If not, it looks like a GPU + Denoise problem, here are some suggestions (first one is a must):
- Make sure you are using the latest driver!
- File a bug report:
- Try the other Denoiser (In the Compositor, use Denoise Data)).
-Or render with CPU.
there is a huge difference in noise between cpu and gpu. latest driver is installed, other denoiser is way better, but still not as good as cpu render...
Very strange!
Like I said, unfortunately I can't render on my GPU, so I can't test how that is on my computer, but I've never heard of anyone complaining about a lot of noise on GPU renders...
Could it have something to do with different tile sizes? Or is it maybe a RTX thing? Both sound very unlikely to me, but there really shouldn't be any difference between the two....(at least not humanly noticeable.)
