Stephen Hill

Principal Rendering Engineer, Lucasfilm Advanced Development Group

2025-06-10

The SIGGRAPH Physically Based Shading course is back this year: blog.selfshadow.com/publicatio

2025-05-15

@BrianKaris Naty gave me a warm welcome and introduced me to lots of people at Gamefest and GDC earlier that year, when I was presenting for the first time. It had a similar effect on me and I’ve tried to pay it forward since. I’m sure you have too.

2025-05-14

@BrianKaris congratulations! Well deserved!

Stephen Hill boosted:
2025-03-19

We just posted a recording of the presentation I gave at DigiPro last year on Hyperion's many-lights sampling system. It's on the long side (30 min) but hopefully interesting if you like light transport! Check it out on Disney Animation's website:

disneyanimation.com/publicatio

Stephen Hill boosted:
Todd Vaziritvaziri
2024-11-29

Happy Thanksgiving!

A scene from the movie The Last Jedi of a porg cooking next to other porgs
Stephen Hill boosted:
2024-10-24

Here's a cool new paper on an energy-preserving version of the Oren-Nayar model for a rough diffuse BRDF. By Jamie Portsmouth, Peter Kutz, and @self_shadow

arxiv.org/abs/2410.18026

Stephen Hill boosted:
2024-10-01

🎨✨ We introduce a novel anisotropic specular image-based lighting method that serves as a drop-in replacement for the standard bent normal technique. This approach renders materials like brushed stainless steel and fur more realistically.

We derive an analytic formula for determining the major axis of the specular microfacet BRDF and place the environment samples along it, similar to anisotropic texture filtering.

👉 Project page: xavierchermain.github.io/publi

#rendering #research #computergraphics

Stephen Hill boosted:
2024-08-08

The video recordings of all HPG 2024 sessions are now available online:
highperformancegraphics.org/20

2024-08-04

SIGGRAPH 2024 content links: blog.selfshadow.com/2024/08/03. More to follow. Let me know if I'm missing anything.

Stephen Hill boosted:
2024-07-28

SIGGRAPH 2024 Advances in Real-Time Rendering in Games course syllabus is up advances.realtimerendering.com - Enjoy! See you on Tuesday.

Stephen Hill boosted:
Wojciech Jaroszwjarosz@mathstodon.xyz
2024-07-28

Who’s at #SIGGRAPH2024?

Please boost for visibility.

Stephen Hill boosted:
2024-07-25

This Saturday I'll be presenting our paper “Cache Points for Production-Scale Occlusion-Aware Many-Lights Sampling and Volumetric Scattering" at DigiPro 2024.

The paper is now available for free on the ACM DL: dl.acm.org/doi/10.1145/3665320

This paper is a deep dive into Disney's Hyperion Renderer's many-lights sampling system. We cache and interpolate light sampling distributions at points throughout space (hence the name). We've now used this system for 10 years, on every project since 2014.

(1/2)

Stephen Hill boosted:
2024-06-29

As paper co-chair for the High Performance Graphics conference (together with AMD's @AaronKnoll1) I am incredibly proud to announce that the paper line-up is now officially available on the HPG'24 website:

highperformancegraphics.org/20

Stephen Hill boosted:
2024-06-19

I'm excited to share our #SIGGRAPH2024 paper on unifying stochastic representations for light transport: cs.dartmouth.edu/~wjarosz/publ

We show how to use stochastic implicit surfaces (SISes) to describe microfacet surfaces and participating media (and a bunch of new things in between).

Stephen Hill boosted:
Bart Wronski 🇺🇦🇵🇸BartWronski@mastodon.gamedev.place
2024-05-16

I am excited to finally share our recent paper "Filtering After Shading With Stochastic Texture Filtering" (with @mattpharr @marcosalvi and Marcos Fajardo), published at ACM I3D'24 / PACM CGIT, where we won the best paper award! 1/N

2024-05-16

@BartWronski @aras I’m fairly certain that was “Art Direction within Pixar’s Physically Based Lighting System” (Ian Megibben & Farhez Rayani). Sadly we never got permission to post final slides at the time. I should really ping Ian again.

2024-05-14

Days since being caught out by Photoshop’s default greyscale working space: 0.

Stephen Hill boosted:
2024-04-15

Check out the great papers accepted to I3D 2024! i3dsymposium.org/2024/papers.h

2024-03-31

@rygorous @zeux obi nan ḳ̶̖̈́̍è̸̗̻ņ̶̺̊͝ǒ̸̜̼b̶̠͕̈́ȋ̴̟̊

Stephen Hill boosted:
2024-02-01

Wow! The entirety of the Cinefex back catalog is being uploaded to archive.org by the original editors. This is an absolutely essential resource for VFX historians and enthusiasts; back when Cinefex was still being published, each issue was essentially mandatory reading for anyone looking to stay on the cutting edge of the VFX industry.

archive.org/details/cinefex-in

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