An Overview of Temporal Coherence Methods in Real-Time Rendering

Most of the power of modern graphics cards is put into the acceleration of shading tasks because here lies the major bottleneck for most sophisticated real-time algorithms. By using temporal coherence, i.e. reusing shading information from a previous frame, this problem can be alleviated. This paper gives an overview of the concepts of temporal coherence in real-time rendering and should give the reader the working practical and theoretical knowledge to exploit temporal coherence in his own algorithms.