Ike Turner
Veteran
Real-Time Line- and Disk-Light Shading with Linearly Transformed Cosines
https://labs.unity.com/article/real-time-line-and-disk-light-shading-linearly-transformed-cosines
Slightly older one:
A Spherical Cap Preserving Parameterization for Spherical Distributions
https://labs.unity.com/article/spherical-cap-preserving-parameterization-spherical-distributions
https://labs.unity.com/article/real-time-line-and-disk-light-shading-linearly-transformed-cosines
Slightly older one:
A Spherical Cap Preserving Parameterization for Spherical Distributions
https://labs.unity.com/article/spherical-cap-preserving-parameterization-spherical-distributions