V-Ray ray tracing (3DSMax) on GPU

[thilanliyan]

http://www.cgarchitect.com/new...-CHAOS-GROUP-GPU.shtml

 

[Kakkoii]

Very awesome. It's nice to see GPU based Ray-tracing coming to market so quick. Hopefully these guys get it ported to OpenCL quick and out to market. Will be a nice renderer to go along with the next-gen GPU's coming out soon.

 

[TurtleCrusher]

Going from 1 frame per 26 second to 40 frames per second equals out to a 104000% increase in speed.

Yeah that's not groundbreaking at all.

 

[Qbah]

So basically... it went from a frame every few minutes to 5-6 frames per second? Wow !

 

[yh125d]

Originally posted by: Scholzpdx
Going from 1 frame per 26 second to 40 frames per second equals out to a 104000% increase in speed.

Yeah that's not groundbreaking at all.

All of the demos were rendered at 640 x 480


640x480 @ 40FPS would translate to about 7FPS at 1680x1050, and thats a scenario assuming linear conversion 🙁

 

[TurtleCrusher]

Originally posted by: yh125d

Originally posted by: Scholzpdx
Going from 1 frame per 26 second to 40 frames per second equals out to a 104000% increase in speed.

Yeah that's not groundbreaking at all.

All of the demos were rendered at 640 x 480


640x480 @ 40FPS would translate to about 7FPS at 1680x1050, and thats a scenario assuming linear conversion 🙁

Correct me if i'm wrong but I don't think Ray Tracing is affected by resolution. It would still have to render the object the same no matter the resolution. Am I mistaken?

 

[Modelworks]

Originally posted by: Scholzpdx

Originally posted by: yh125d

Originally posted by: Scholzpdx
Going from 1 frame per 26 second to 40 frames per second equals out to a 104000% increase in speed.

Yeah that's not groundbreaking at all.

All of the demos were rendered at 640 x 480


640x480 @ 40FPS would translate to about 7FPS at 1680x1050, and thats a scenario assuming linear conversion 🙁

Correct me if i'm wrong but I don't think Ray Tracing is affected by resolution. It would still have to render the object the same no matter the resolution. Am I mistaken?

Yep you are are mistaken, unfortunately. I wish I could render at low and high res at the same speed, but that isn't how it works. V-Ray is not just a ray tracer, it uses a lot of other methods to complete the scene.

V-Ray RT is about previews. The way V-Ray works right now you have to set up your scene then press render. View the preview, then adjust the scene, press render. You can lower the settings to render the scene quicker , then increase them for the final render, but it still is a slow process when tweaking the render. RT helps by allowing people to tweak the scene much faster so they can start the final rendering sooner.

The other issue with any GPU rendering solution in applications is they need to support all the software features, like particles, cloth, dynamics and most do not. So what you get in the end is a GPU/CPU solution where some of the work is done on the GPU and some on the CPU. It can be faster or slower depending on the scene.