I think the title of this should be changed, at the moment it's click bait. It should be something like:
CUDA Ray Tracing 2x Faster Than RTX when Rendering Spheres
As far as I can see, this renderer can't do anything else except spheres (and maybe planes).
It's no bad achievement to beat a general purpose production renderer at one specific thing, but a renderer that can only do spheres is just a hyper-optimized toy, and here it's being presented as far more than that.
kachapopopow · 42m ago
wow, bypassing a rendering backend makes things go faster, what a surprise!
This only runs on nvidia, vulkan is designed to be cross-compatible with not only gpus, but operating systems as well. Vulkan is pretty direct compared to something like dx11 thought so I guess it is interesting to see performance improvement non the less.
sheepscreek · 8h ago
I’m guessing it’s because they’re using all the computing power the GPU has to offer in CUDA mode, as opposed to sharing the GPU with other functions (when in RTX).
atq2119 · 1h ago
More likely it's because the scene they're using is completely unrepresentative of what people are interested in: almost no triangles, primarily procedural nodes (for spheres), and in general a fairly simple scene.
colechristensen · 1h ago
Yup this is an "assume spherical cow" situation where it's not dishonest, but you can't draw any real world conclusions from the experiment unless you happen to be working in a very restricted space.
ChocolateGod · 1h ago
Wouldn't you need to in a real world scenario make the CUDA cores aware of the game geometry adding more work on the CPU?
pixelpoet · 1h ago
> FMA performance here is a non-issue, I'm not just flexing—I'm showing off my CUDA prowess. But hey, got to demonstrate I know my hardware!
This article is pretty embarrassing, and as others have noted, very misleading due to the RTX units hardly being used.
CUDA Ray Tracing 2x Faster Than RTX when Rendering Spheres
As far as I can see, this renderer can't do anything else except spheres (and maybe planes).
It's no bad achievement to beat a general purpose production renderer at one specific thing, but a renderer that can only do spheres is just a hyper-optimized toy, and here it's being presented as far more than that.
This only runs on nvidia, vulkan is designed to be cross-compatible with not only gpus, but operating systems as well. Vulkan is pretty direct compared to something like dx11 thought so I guess it is interesting to see performance improvement non the less.
This article is pretty embarrassing, and as others have noted, very misleading due to the RTX units hardly being used.