3 papers
cs.GR2026
The Minimal Retroreflective Microfacet Model
Jamie Portsmouth, Matthias Raab, Laurent Belcour +1
We present the Minimal Retroreflective Microfacet (MRM) model, which turns any existing microfacet BSDF into a physically plausible retroreflective one by a single substitution: re…
cs.GR2026
OpenPBR: Novel Features and Implementation Details
Jamie Portsmouth, Peter Kutz, Stephen Hill
OpenPBR is a physically based, standardized uber-shader developed for interoperable material authoring and rendering across VFX, animation, and design visualization workflows. This…
cs.GR2024
EON: A practical energy-preserving rough diffuse BRDF
Jamie Portsmouth, Peter Kutz, Stephen Hill
We introduce the "Energy-preserving Oren--Nayar" (EON) model for reflection from rough surfaces. Unlike the popular qualitative Oren--Nayar model (QON) and its variants, our model…