Shlomi Steinberg's Avatar

Shlomi Steinberg

@ssteinberg.xyz

Assistant Professor @UWaterloo CS rendering, light transport & optics PhD @UCSB, MSc @WeizmannScience, formerly @Crytek @NVIDIA. ๐Ÿ‡ฎ๐Ÿ‡ฑ๐Ÿ‡จ๐Ÿ‡ฆโœก๏ธ ssteinberg.xyz

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18.11.2024
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Latest posts by Shlomi Steinberg @ssteinberg.xyz

Whatโ€™s the issue with an academic license?

30.08.2025 17:25 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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wave_tracer 0.1 released
wavetracer.dev

wave_tracer combines path tracing and wave optics in a novel way, for practical general-purpose wave simulations across a variety of EM modalities and applications.

30.08.2025 15:23 ๐Ÿ‘ 88 ๐Ÿ” 21 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1
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09.08.2025 22:54 ๐Ÿ‘ 6 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Tasty too

23.05.2025 21:04 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
SIGGRAPH Asia 2026 in Malaysia would be unsafe for LGBTQ+ attendees

I stand (sit) behind this:
alecjacobson.com/weblog/siggr...
I will also warn Israeli potential attendants (meaning any civilian connection to Israel, like familial relations, loose as it may be) risk *getting kidnapped or worse*. Yes, even if you travel with a foreign passport, you may be targeted,

22.05.2025 10:14 ๐Ÿ‘ 11 ๐Ÿ” 5 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Couldnโ€™t get it faster with quantization or other tricks. I am also sorting the 8 nodes by distance to AABB. Both ray and cone performance has improved dramatically (traversal is virtually negligible compared with intersecting meshes), so not looking at it further.

23.03.2025 18:27 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Literally spent a couple of days on it. My motivation is also not rays but elliptical cones (for wave optics). A BVH does significantly better than a kdtree for cones, so I also put together an 8w BVH.

23.03.2025 18:25 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Yes. Iโ€™d also assume itโ€™d be different on a GPU.

22.03.2025 17:57 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Exactly what I found actually. Compressing the nodes reduces performance even with moderately complex scenes. Uncompressed 8w nodes is fastest.

22.03.2025 13:15 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
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20.02.2025 23:39 ๐Ÿ‘ 5 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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UWaterloo

19.02.2025 16:39 ๐Ÿ‘ 4 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Whistler, CA.

07.02.2025 14:14 ๐Ÿ‘ 1 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Hit me up if you are in Tokyo!

23.11.2024 16:49 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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A Generalized Ray Formulation For Wave-Optics Rendering Under ray-optical light transport, the classical ray serves as a linear and local "point query" of light's behaviour. Linearity and locality are crucial to the formulation of sophisticated path tracin...

To be presented in SIGGRAPH Asia:
A path tracing-compatible formulation for general-purpose wave transport.
See how light transport, under rigorous Wigner optics, can be done practically for optical, long-wavelength (RADAR/cellular), and acoustics applications.

ssteinberg.xyz/2023/03/27/r...

23.11.2024 16:49 ๐Ÿ‘ 35 ๐Ÿ” 10 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Happy to announce that I have joined UWaterloo as assistant professor. If you are interested in doing a PhD in rendering or light transport, check out ssteinberg.xyz/students.

18.11.2024 17:37 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
https://ssteinberg.xyz/2024/04/05/free_space_diffractions_bsdf/

A Free-Space Diffractions BSDF. This paper addresses the problem of simulating the diffractions ("bending") of light around geometry and obstacles, in an efficient manner with ray tracing.
Collaboration with NVIDIA.

t.co/FnMiR8XO2g

18.11.2024 17:35 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0