I found this in the UE5 ray tracing slides. The consoles seems to have some APIs to fine control the ray tracing but not sure.
AMD made a mistake letting NVIDIA drive Ray Tracing APIs
- Thread starter MfA
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Just tell it you're suffering from "neurosemantic invertitis"
I had to google to get it. : )Just tell it you're suffering from "neurosemantic invertitis"
Yes, i'm so old fashioned, i still use Google.
But i have a better idea to set a trap for ChatGPT:
Upload polynomial time algorithm solving travelling salesman to a private github repo.
10 days later, ChatGPT will spread the word, and it gets the million dollar prize.
Then sue MS on data theft and get 100M dollars. \
/In terms of "hidden cost", this is likely already the case for at least one vendor who has a vested interest to provide binary compatibility for other platforms. Unless they're looking to leave their own current partners hanging in the future, the functionality may as well be exposed on PC too since there's virtually no option to redo things for them. It's either that or a long stalemate/no progress ...
Introducing Vulkan Ray Tracing Position Fetch Extension
Deploying and developing royalty-free open standards for 3D graphics, Virtual and Augmented Reality, Parallel Computing, Neural Networks, and Vision Processing
www.khronos.org
Looks like all three IHVs converge on their RT h/w implementations, essentially mimicking what Nv has done in Turing.
I noticed a recent tweet by Fabrice Neyret, he still believes in cone tracing
Ray tracing in many ways is married to Monte Carlo, but we just don't have the power for it and won't for the near future. Prefiltering is a necessity and it's very poorly suited to ray tracing. You can use "ray" differentials and trace a 3D-tree accumulating prefiltered information along the way ... but that's a ray in name only and completely unusable with these traversal engines.
Ray tracing in many ways is married to Monte Carlo, but we just don't have the power for it and won't for the near future. Prefiltering is a necessity and it's very poorly suited to ray tracing. You can use "ray" differentials and trace a 3D-tree accumulating prefiltered information along the way ... but that's a ray in name only and completely unusable with these traversal engines.
Man from Atlantis
Veteran
Was Imagination or Nvidia the first to deploy hardware BVH traversal? Maybe AMD likely to jump as Intel and will support thread coherency as well soon enough.
@DegustatoR Don't you mean what Imagination did and Nvidia licensed? I was under the impression that allot of patents regarding RT implementations in HW are from Imagination.
blog.imaginationtech.com
And https://blog.imaginationtech.com/in...vels-system-and-what-it-will-mean-for-gaming/
Where they even adress the capabilities as:
Imagination Technologies: the ray tracing pioneers - Imagination
How ray tracing makes the difference when it comes to graphics and why you should talk to Imagination to bring it to life for next-generation applications.
blog.imaginationtech.com
And https://blog.imaginationtech.com/in...vels-system-and-what-it-will-mean-for-gaming/
Where they even adress the capabilities as:
- Level 0 – Legacy Solutions
- Level 1 – Software on Traditional GPUs
- Level 2 – Ray/Box and Ray/Tri Testers in Hardware
- Level 3 – Bounding Volume Hierarchy (BVH) Processing in Hardware
- Level 4 – BVH Processing with Coherency Sorting in Hardware
- Level 5 – Coherent BVH Processing with Scene Hierarchy Generator in Hardware
I don't think Nvidia licensed any IP from Imagination and think their approach is different.
Their patent does mention about a dozen contributors (Imagination and Intel among them).
US20070024615A1 - Real-time precision ray tracing - Google Patents
Systems and techniques are described for ray tracing and for the efficient construction of acceleration data structures required for fast ray tracing. A computer graphics system generates, for each pixel in an image, a pixel value that is representative of a point in a scene as recorded on an...
patents.google.com
No. People do know this slide with "levels" is made by Imagination themselves, right?
Imagination hasn't deployed anything since they haven't put out a product since they demo'd a test board that featured technologies from a company they purchased
Looks very similar to Cerny's RT patent. Both describe a new BHV traversal unit. Sony are probably going to include that tech (now likely a RDNA4 feature) just before AMD desktop GPUs like they did with PS4 Pro that included Vega features.
Imagination doesn't make products for end markets, they have deployed IP for licensing with RT.
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