hello guys . I am wondering in anyone has seen a similar situation Set up a very simple scene with dome light / vray / vray mtls. What i am curious about is that i see a slight difference(shadow strength and light intensity) with rendering production vs RTgpu. the difference only shows with vray …

murphys law i guess . i think i found the error in the rt engine used . i was using open cl on nvidia gpu’s . switched to cuda and prob seemed to vanish :slight_smile: hopefully this can someone else Andre

alright . it seems to be a bug . has anyone seen this situation before . meaning rendering w cpu production render is different that rtgpu even if all supported features are used.

I’ve actually had similar problems with Cuda GPUs as well: slightly darker renders. I assumed it had to do with the adaptive DMC settings (optimized for fast AA). I wouldn’t mind a little explanation, or a link to one, of how RT is different from the standard production renderer in terms of DMC and …

[image] Corona Benchmark scene Is this a known bug of some kind of special way vray sun interacts with the scene in cpu vs how it does it wit the gpu Which V-Ray version? Best regards, Vlado

vray 3.0 nvidia gpu’s , max 2014. … from my knocking around ,it seems like the dome light integration is perfect and works when this is only exterior light.. but my workflow has a vray sun additionally for stronger shadows… this vray sun light is not being added in RT process. weird !

curious observation with RT / CPU workflows

V-Ray for 3ds Max V-Ray for 3ds Max :: General

vlado May 24, 2014, 6:30pm 5

Which V-Ray version?

Best regards,
Vlado

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curious observation with RT / CPU workflows

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