Recursive Ray Tracing

Ray tracing is a 3D computer graphics technique used to model light transport for generating digital images. It is slower and higher fidelity than scanline rendering methods, but has become standard on new commercial graphics cards for real-time applications such as video games. Ray tracing can simulate a variety of optical effects and physical wave or particle phenomena with linear motion. Image noise artifacts can be addressed by tracing a large number of rays or using denoising techniques.