Artifacts when motion blur is enabled

V-Ray V-Ray GPU Issues
1

Just installed the latest version with motion blur and here’s what I get with motion blur disabled:

Then when I enable motion blur I get this:

Happens when RT is set for production and active shade. Same thing happens if I use OpenCL or CUDA options. The only time it works correctly (no artifacts) is when I use CPU mode.

GPU hardware:
Quadro 6000
Tesla c2075 x2

GPU Drivers: 296.70

I’ve verified the results on two different scenes and after a fresh restart of the workstation.

Thoughts?

MotionBlur_Off.jpg
MotionBlur_Off.jpg943×530 47.6 KB

MotionBlur_On.jpg
MotionBlur_On.jpg943×530 41.9 KB

2

Hm, works fine for me in a similar scene (see attachment). Can you get me some parts of the scene so that I can check what’s going on?

Best regards,
Vlado

moblur_cuda.jpg
moblur_cuda.jpg640×480 38.2 KB

3

Actually, before we get to the scene, do you have a dome light in there?

Best regards,
Vlado

4

Yes I do have a domelight with a HDR assigned (VRayHDR map). Is there a different method I should use?

5

That’s the right method, but there’s a bug with the dome light and motion blur. Will upload the fix on the site tomorrow.

Best regards,
Vlado

6

Roger that, thanks for the quick reply!

7

So this should be fixed now if you re-download the installation (V-Ray RT version should be 2.30.02).

Best regards,
Vlado

bike.jpg
bike.jpg800×600 72.3 KB

8

That indeed resolved the problem. Thanks.