2015-07-25 "PowerVR ray traced soft shadow articles" by ImgTec GAME_GFX SHADOW RAY_TRACE Implementing fast, ray traced soft shadows in a game engine http://blog.imgtec.com/multimedia/implementing-fast-ray-traced-soft-shadows-in-a-game-engine "A game of shadows: ray traced shadows vs. cascaded shadow maps" ImgTec http://blog.imgtec.com/multimedia/ray-traced-shadows-vs-cascaded-shadow-maps