'''Parallel rendering''' (or '''Distributed rendering''') is a method used to improve the performance of [[computer graphics]] creation software. The rendering of graphics requires massive computational resources for complex objects like [[medical visualization]], [[iso-surface generation]], and some [[CAD]] applications. Traditional methods like [[Ray tracing (graphics)|ray tracing]], [[3D texture]]s, etc., work extremely slowly in simple machines. Furthermore, [[virtual reality]] and visual simulation programs, which render to multiple display systems concurrently, are applications for parallel rendering.