Igromania.ru NVIDIA Develops New ReSTIR Algorithm Using Rate Tracing NVIDIA experts, together with researchers at the Laboratory for Visual Computing at Dartmouth College, presented an early prototype of ReSTIR technology. This is a new ray tracing algorithm that can visualize dynamically changing lighting from millions of light sources in real time. Technically, the idea is in part a development of the DLSS 2.0 smoothing system, although the principle is still different. In ReSTIR, it is not the colors of the pixels that are filtered, but the direction of the rays, which helps to reduce output noise. The video below shows the operation of the algorithm that was launched on the GeForce RTX 2080Ti card. In addition, each frame was calculated in less than 50 ms. Allegedly, this method is 6-60 times faster than existing modern methods of visualization. At the same time, there is no talk of commercial implementation, however, in September, the developers plan to tell more about the new pr