Tobias Zirr
tszirr.bsky.social
Tobias Zirr
@tszirr.bsky.social
Research@NVIDIA. Into CG/rendering, ML, ergonomic programming, efficient (high-perf) SW design. Formerly Intel, demos, space warping. :)
He/him 🏳️‍🌈
Opinions are my own.
https://alphanew.net
Reposted by Tobias Zirr
My third and final blog post on spectral rendering is out. This one compares results of RGB and spectral rendering under different illuminants and draws conclusions.
momentsingraphics.de/SpectralRend...
November 20, 2025 at 6:59 PM
Reposted by Tobias Zirr
Ray marching is a common approach to GPU-accelerated volume rendering, but gives biased transmittance estimates. My new #SIGGRAPHAsia paper (+code) proposes an amazingly simple formula to eliminate this bias almost completely without using more samples.
momentsingraphics.de/SiggraphAsia...
October 30, 2025 at 1:24 PM
Reposted by Tobias Zirr
🎄 Introducing our paper A Generalizable Light Transport 3D Embedding for Global Illumination lnkd.in/gQUMSAyV .
🙈 Just as Transformers learn long-range relationships between words or pixels, our new paper shows they can also learn how light interacts and bounces around a 3D scene.
October 23, 2025 at 3:27 AM
Reposted by Tobias Zirr
Dr.Jit+Mitsuba just added support for fused neural networks, hash grids, and function freezing to eliminate tracing overheads. This significantly accelerates optimization &realtime workloads and enables custom Instant NGP and neural material/radiosity/path guiding projects. What will you do with it?
August 7, 2025 at 11:15 AM
Reposted by Tobias Zirr
The latest development version of Dr.Jit now provides built-in support for evaluating and training MLPs (including fusing them into rendering workloads). They compile to efficient Tensor Core operations via NVIDIA's Cooperative Vector extension. Details: drjit.readthedocs.io/en/latest/nn...
June 1, 2025 at 2:04 AM
Reposted by Tobias Zirr
Do you want to learn path tracing? Two lectures that I held at TU Delft are on YouTube now! The 2nd is what I had in mind for part 3 of my path tracing workshop. No Shadertoy exercises this time, but an open source Vulkan path tracer 🥳.
www.tudelft.nl/ewi/over-de-...
www.youtube.com/watch?v=Uerw...
December 19, 2024 at 11:47 AM
More of the best moments in graphics on Bluesky ;) 🎉
December 20, 2024 at 6:21 PM
Reposted by Tobias Zirr
Following over 1.5 years of hard work (w/@njroussel.bsky.social &@rtabbara.bsky.social), we just released a brand-new version of Dr.Jit (v1.0), my lab's differentiable rendering compiler along with an updated Mitsuba (v3.6). The list of changes is insanely long—here is what we're most excited about🧵
November 26, 2024 at 3:09 PM