Realtime raytracing on your phone

VR & AR with realistic images coming soon  People have described ray tracing as the holy grail of computer imaging. RT generates (if done properly) a physically accurate representation of an imagined or reconstructed scene. The number of variables are bewildering, from location and number of light sources combined with the style of each individual light (point source, diffused, flickering candle, etc.), to the materials of the elements in the scene (leather chairs, glass table tops, gravel road, broken wooden shingled roof, etc.). The materials, which can include multi-layered automobile fenders with different indexes of refraction that reflect and may