Welcome to the PataBlog!
You will find mostly articles about math and rendering.
I specialize in lighting, from the microscopic BRDF to the macroscopic interactive indirect lighting simulation in 3D scenes.
(images from the game "Dishonored 2", Arkane Studio)
I every light-related phenomenon, from emission to scattering, interaction and perception. The beautiful intricacies of matter playing with photons, often in mysterious ways, yielding the most jaw-dropping patterns and colors.