Simon LUCAS

Post-doc researcher in computer graphics at Inria (GraphDeco)

[Ishaan Shah @ishaan_n_shah]

We are excited to announce our work on efficient precomputation for real-time global illumination, presented at EGSR'26 last week!
Learn more: https://t.co/P6zMuq2H7M.

This work was conducted with @SimonLUCAS_CG and @GDrettakis.
Funded by the ERC Advanced Grant NERPHYS.

[Simon LUCAS @SimonLUCAS_CG]

If you don't have any idea of what are micrograins, my previous thread was on it :
https://t.co/mtFeAZVgdj [4/4]

[Simon LUCAS @SimonLUCAS_CG]

I am pleased to share our @siggraphasia conf paper "A Micrograin BSDF Model for the Rendering of Porous Layers" with @drpaca, M. Ribardière and P. Barla : https://t.co/2QZZQe7l69

In this paper, we introduce the concept of micrograins ... [1/5]

[Simon LUCAS @SimonLUCAS_CG]

I am very pleased to share our last paper with Mickaël Ribardière, @drpaca and Pascal Barla : "A Fully-correlated Anisotropic Micrograin BSDF Model" (https://t.co/V4VaC5AKTH)
I can't wait to present it at @siggraph !
The main contribution of this work is ... [1/4]

[Simon LUCAS @SimonLUCAS_CG]

By removing the Smith assumptions, our model differ significantly with previous works, especially at grazing angle and in retroreflection configuration. Here are some examples : [3/4]

[jendrik illner @jendrikillner]

Graphics Programming weekly - Issue 308 - October 8th, 2023 https://t.co/QYmNxYmPmz

[Simon LUCAS @SimonLUCAS_CG]

Here are some images showcasing appearances achiveable with our model : hazy-reflection, grazing-angle color changes... [5/5]

[Simon LUCAS @SimonLUCAS_CG]

I am pleased to share our @siggraphasia conf paper "A Micrograin BSDF Model for the Rendering of Porous Layers" with @drpaca, M. Ribardière and P. Barla : https://t.co/2QZZQe7l69

In this paper, we introduce the concept of micrograins ... [1/5]

[Simon LUCAS @SimonLUCAS_CG]

By using the micrograins as a structural proxy for the microfacets framework, we derived the main functions of the microfacet theory. We found that our new normal distribution function extends the Trowbridge-Reitz (GGX) distribution to handle porosity. [4/5]

[High-Perf Graphics @HPG_Conf]

Here's a preview of the amazing submissions we received in the #HPG2022 Student Competition. Check out this page for tech details & shadertoy links for each solution: https://t.co/fOLrGdMZCv

We will announce winners tomorrow. Thanks to all the students who participated!

[Simon LUCAS @SimonLUCAS_CG]

It was a pleasure to code with @xavierchermain Real-Time Geometric Glint Anti-Aliasing With Normal Map Filtering, accepted at @I3DCONF.
Github: https://t.co/2sQzo8tWLG
Playing with NDF transformations and NDF filtering through OpenGL functions was fun!