turlif 投稿 "Geomerics, specializes in graphics and physics technology, has developed a
replacement for "spherical
harmonics". This technology
handles dynamically changing lighting environments, moving objects and changing
viewing angles, utilizing "geometric algebra". Their solution"...not only handles diffuse lighting and soft shadows
but also allows for dynamic specular effects to be integrated into the same pipeline giving rise to realistic
glossy effects unobtainable from existing spherical harmonic implementations.""