V-Ray GPU Next Ambient Occlusion check box and settings?

[zero-13]

Am I blind or is this feature not available yet for V-Ray GPU Next? Very convenient setting to quickly bake in some AO, the denoiser made it even more useful for me, so I use it all the time on CPU... or is it there and I just have bat-eyes?

Thanks,

[savage309]

It has never worked in V-Ray GPU.
In V-Ray GPU Next, we try to show in the V-Ray GPU UI only the features that are supported.

Best,
Blago.

[zero-13]

Is this something that could be added to the GPU engine later or would that AO effect negativley affect the GPU performance?

I'm certain it's not available for the GPU engine for very good reasons so mainly just curious.

Thank you for the reply!

[Micha]

I used the GI AO a lot in the past and I miss it in GPU mode. It helped me to bring important little parts and gaps visible. Is there a chance to see this feature again in the near future?

[savage309]

Sorry, I have missed your questions zero-13
The primarily reason is that not too many people are actually using the AO over GI overall. For those that really need it, it is possible to get the same effect on post using ExtraTex + DiffuseGI render elements.

Best,
Blago.

[Micha]

Hi Blago.

I need to render air plane and train interiors, where my client want to see the shape of the wall/ceiling panels. Maybe it's not 100% photo realistic, but if small details should be shown during a presentation only visibility counts. Please try to bring back the little feature, it was so easy and helpful. At the moment it's my biggest draw back of the GPU mode. And adding it per postwork is extra work that could be easy avoided.

Additional an example rendered per Enscape, where AO is not possible, but subtle blend of outlines is easy done. A simple outline slider like at Enscape could be a nice feature for Vray too, the Enscape user love it. It's a great feature for presenting design concepts, it give the feeling of a sketch, an idea, nothing final. I know, per postwork it's possible, but often my clients get dozen of images from an interior concept during a tight deadline.

Best,
Micha

[Micha]

For those that really need it, it is possible to get the same effect on post using ExtraTex + DiffuseGI render elements.

I tried it at Vray next beta (Rhino), but don't get it. Could you tell more please or post some screenshots of the needed elements?

[savage309]

Peter.Chaushev Let’s ask some of the Rhino guys for help

Best,
Blago.

[zero-13]

savage309 Thank you for the reply!

I think a ton of users would use and really appreciate the baked AO and the speed of iteration it provides. Many of us need quick out VFB renders and don't always have the time or especially don't always have the need to go down the full passes, post production compositing rabbit hole.

I hope maybe in the future it can be implemented for GPU, it is so useful and convenient to have the AO included so quickly and effortlessly. It really helps in completing a scene for better definition of smaller details.

I can't imagine a single user that would protest the inclusion of this feature to the GPU render engine, and many of us would find great value and utility in it.

Thanks again for your reply and your time,

[savage309]

matanov yolov
Alright, thanks for the feedback. We will consider it.

Best,
Blago.

[Peter.Chaushev]

I tried it at Vray next beta (Rhino), but don't get it. Could you tell more please or post some screenshots of the needed elements?

In V-Ray Next for Rhino Beta, a basic set-up would require the following Render Elements - Extra Texture with slotted TexDirt, Global Illumination ("Denoise" checkbox enabled), and Background (if present in view). In post-production you would need to multiply the GI and ExtraTex channels.
As Blago already mentioned, GPU support for AO is being considered.
For further discussion and assistance about AO in regards to V-Ray Next for Rhino we can continue the conversation in the designated beta forum.

Kind regards,
Peter

[zero-13]

Just checking in on this, hoping it is still being considered?

[Peter.Chaushev]

It is indeed. There is an ongoing internal discussion on this subject.
Once a decision is reached, I will post all new info here.

Kind regards,
Peter

[zero-13]

I made a short video to better illustrate how great the baked A.O. option from the CPU engine can be for lookdev, and how much time it can save not having to spit out an A.O. pass and composite just to see what's going on with smaller details.

I would love to have the option to continue to use this for the GPU engine, and I'm hoping it's not a big hassle to implement it or port it over... I think many users would appreciate how useful this little option is and how much time it can save.

I think many of us would love the option to sometimes combat the flatness via GPU please!

https://vimeo.com/321389789/c9c03b0af2

[vjaramillo]

Got to love that video. I don't use GPU mode, but always use baked AO in CPU mode.