Karthik Karanth

Likes computer graphics, geometry processing, physics simulation, software performance. Sometimes makes music and art

[Karthik Karanth @itsamekk]

@SebAaltonen > Apple has a very nice ray scheduling/packing hardware (does more than SER)

Is there any public information on this? Or is it visible in GPU captures? Curious as I haven't seen any signs of packing/reordering/SER-like behavior (at least on M3 hardware)

[Karthik Karanth @itsamekk]

@stefan_3d @yiningkarlli NVIDIA does support runtime compilation via NVRTC (https://t.co/v5jGrLk9hn). You still need to ship the NVRTC library with the program, but it should be lighter than bundling the CUDA toolkit

[Yining Karl Li @yiningkarlli]

Adobe just released an Apache-2.0 licensed reference implementation of the OpenPBR Surface standard, extracted from their in-house Eclair renderer.

Neat trick: the reference implementation cross-compiles for C++, GLSL, Cuda, Metal, and Slang!

https://t.co/T9tgTHsDXO

[Karthik Karanth @itsamekk]

@turanszkij @guycalledfrank In your closest hit shader, do you observe that gl_HitTEXT < gl_RayTminEXT ?

[Karthik Karanth @itsamekk]

Claude returns much nicer equations if you ask it to "use mathjax".
1. without
2. with

[Karthik Karanth @itsamekk]

@Uber_India support is brain-dead. I raised a safety complaint that the driver took a longer, unsafe route to avoid paying tolls, and the support response is some nonsense about price?!?

[Karthik Karanth @itsamekk]

@ptrschmdtnlsn Perhaps they cheap out on the flash storage, and the bottleneck is (unnecessary?) disk I/O

[c0de517e/AngeloPesce @kenpex]

REAC 2025 talk details have been posted on the website! Register today - it's free! https://t.co/cwrCfbUKTf

If you can share this message, we'd appreciate it. Thanks, and see you soon!

[Karthik Karanth @itsamekk]

@FR3NKD looks like an albedo G buffer! very cool

[Karthik Karanth @itsamekk]

@lefticus if (a)
do_a_thing();

if (b)
do_b_thing();

Does 100% line and branch coverage imply that the case (a && b) is tested? Likely not, and I'd argue there are bugs. I've seen this happen with two separate (tested) features that work well on their own, but not together

[Karthik Karanth @itsamekk]

@SheriefFYI Are you running clang-format on every file? I typically use git clang-format -f to format only modified files in place

[Karthik Karanth @itsamekk]

Setup LUKS encryption on an existing Ubuntu 24.04 partition this weekend! Some notes on the process: https://t.co/X7C21YlsJO

[Karthik Karanth @itsamekk]

#blender3d #cat

[Karthik Karanth @itsamekk]

My team at Adobe is hiring! We're looking for a Rendering Software Engineer in Test: https://t.co/7k868yLJIY (US / Western Europe)

[Karthik Karanth @itsamekk]

@pavpanchekha > two per cycle

Is this assuming there are enough memory requests queued up(with the final address known), and that the data is already in the last-level cache?

[Karthik Karanth @itsamekk]

@GafxBengaluru can you please update the agenda link on the website? It continues to show the agenda for GAFX 2024.

[Karthik Karanth @itsamekk]

@VulkanAPI Does this have any advantages on non-TBDR GPUs?

[Karthik Karanth @itsamekk]

@BBMPofficial How does one transfer an existing e-Khata via inheritance to the new owners?

[Karthik Karanth @itsamekk]

@j_bikker @petermcneeley84 Curious what specifically you'd like to have more control over? The BVH construction heuristics? Scheduling of any-hit/closest-hit shaders? Something else?

[Karthik Karanth @itsamekk]

@uusci Congratulations!! :)