V-Ray GPU using Turing raytracing hardware (RT Core)

[savage309]

https://youtu.be/yVflNdzmKjg

This demo is running on experimental V-Ray GPU build with a pre-release Quadro RTX 6000 and driver, using RT Cores.
This makes V-Ray GPU the first commercially available production GPU render that uses the hardware accelerated raytracing in Turing.
All current V-Ray GPU versions support the NVIDIA Turing architecture natively.
The new raytracing hardware in the Turing architecture (RT Core) requries experimental V-Ray GPU build, which is available on demand during the Turing pre-release period.
Production scene courtesy of Dabarti. No denoising used.

[danio]

The new raytracing hardware in the Turing architecture (RT Core) requries experimental V-Ray GPU build, which is available on demand[...]

Hi Blago,

Is there a sense of how much the raytracing tech speeds up a typical scene? I realize ‘typical’ is vague, but it’s hard to gauge from the YouTube example what kind of improvement we’re looking at over, say, a 1080 Ti.

Thanks!
Daniel

[werticus]

Not seen any bench marks for it yet: https://benchmark.chaosgroup.com .... The number 1 ranked GPU score there is cryptic to me however.
"AMD A8-7650K Radeon R7, 10 Compute Cores 4C+6G x4, Spectre 2559MB"
What the heck is that?

[a7az0th]

werticus Seems wrong to me. Will investigate. Thanks for reporting it

danio It's really early to say. Best to wait while the cards are out and thoroughly benchmarked.

[savage309]

Hi Blago,

Is there a sense of how much the raytracing tech speeds up a typical scene? I realize ‘typical’ is vague, but it’s hard to gauge from the YouTube example what kind of improvement we’re looking at over, say, a 1080 Ti.

Thanks!
Daniel

We have only pre-release hardware and drivers, so it is very hard to say.

Best,
Blago.

[Nicinus]

Blago, two questions on Lavina and some of the videos released. It seems as if Optix would be the implementation for professionals, no? If so, why was Lavina implemented in DXR?

The other thing I was thinking about, would it be possible to implement your internal .vrscene viewer that Vlado used in his presentation as an Activshade in the 3ds Max interface?

[vlado]

It seems as if Optix would be the implementation for professionals, no? If so, why was Lavina implemented in DXR?

When we started looking into Lavina back in February, OptiX was not exactly where we needed it to be.

The other thing I was thinking about, would it be possible to implement your internal .vrscene viewer that Vlado used in his presentation as an Activshade in the 3ds Max interface?

That has certainly come up as a possibility, but it's a bit early to say. We'll see.

Best regards,
Vlado

[werticus]

Optix is nvidia only right? Be better if they support AMD too.

[vlado]

Optix is nvidia only right? Be better if they support AMD too.

OptiX is NVidia only, yes. I don't think it will ever support AMD. On the other hand, AMD may choose to support DXR and the raytracing extensions for Vulkan, but I don't know if these are enough for a production renderer (f.e. DXR does not support motion blur, which we kind of need ; not sure about Vulkan though)

Best regards,
Vlado

[werticus]

Seen a vray bench on the 2080ti
it gets 52seconds vs 69seconds for the 1080ti.
Plain 2080 gets 70 seconds.

[Alex_M]

So basically none of them are worth buying over 10 series until Vray adds support for RT cores.

[werticus]

yeah it would be nice is chaos chimed in with some performance opinions now that embargo is lifted.

[savage309]

yeah it would be nice is chaos chimed in with some performance opinions now that embargo is lifted.

Performance numbers can be shared only if they are made with official and not pre-release hardware. As soon as we have such, we will share them.

Best,
Blago.

[CCOVIZ]

Do you know guys if NVlink will allow memory sharing through NVlink on consumer grade cards (2080/2080 TI)?

[savage309]

Do you know guys if NVlink will allow memory sharing through NVlink on consumer grade cards (2080/2080 TI)?

AFAIK - yes, it should allow for memory to be shared both on consumer and pro Turing GPUs with V-Ray GPU, *but* we haven't tested yet and we will make a post once we do.

Best,
Blago.