Vray Dirt Not Compatible With GPU?

V-Ray V-Ray for Maya Issues
1

Let me start by saying that I can’t tell if I’m going crazy or just am ignorant… Before I installed the newest version of Vray for Maya I could have sworn that I was able to add an Extra Tex/Vray Dirt element to my render and have it show up when I used RTX for my renderer. After I upgraded, I noticed that my Vray Dirt channel is a white void where my object should be. When I switch back to using my CPU, the same channel shows up with all the appropriate occlusion shadows you would expect from the Vray Dirt texture. This problem affects both IPR and regular rendering when using RTX. If this is just how it is, feel free to tell me in as many words. I know this is a basic question, but I couldn’t find a straight answer online.
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My systems specs are below.

Maya 2022.4
Vray6 Hotfix1
RTX 3090 with 516.94 driver
AMD Ryzen 3960X
Window 10 64bit

Thanks in advance.

JRT

2

VRayDirt is only partially supported on the GPU. Maybe you could simplify and send (or attach) the scene so we can confirm?

3

@justin_trudeau Hi Mr Justin and welcome to the forums :slight_smile:

If you send us your setup or simplified version we will be able to confirm, if this was not supported in the past I will add it to the GPU roadmap.

Best,
Muhammed

4

Hi I am having the same issue.

Maya 2020 - AO Pass works good

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Maya 2022 - AO Pass not working
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Here’s the sample Maya Files.
I am using an I7 and RTX5000

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AO_2020_2022.zip (49.4 KB)

5

Hi @Muhammed_Hamed , sorry I must had my email notifications turned off. I can definitely send you a simplified scene. How would you like me to send it?

JRT

6

Same issue, I7 and RTX3090. I’m using the cpu for the AO for now, but that means another render pass

7

We are working on a fix now

Thank you for the report

Best,
Muhammed

8

Yes its broken. Please hurry up :smile:

9

Oh my various gods - I’ve been tearing my hair out trying to work out why this wasn’t working when I knew it worked in previous versions!

Same issue on Maya 2020.4 with Vray 6 hotfix 1

PLEASE Chaos get Vray GPU ready for primetime, this kind of basic non-functionality is costing artists time and money. :roll:

10

Its working if you turn off “as inclusive set”

11

Thanks, I’ll give that a try - though I’ve already downgraded to Vray 5 as a work around.

12

@oglu

Sorry for the delay. I couldn’t log in to my Chaos account until now. I just saw your post, unchecked “as inclusive set” under the VrayDirt parameters and BOOYAH, it worked. Many thanks. That solution will save me a lot of trouble down the road.

JRT​