Instead of replacing rasterization entirely, however, the information gathered from ray-tracing can be used to augment the shading with information that is much more physically correct, especially regarding off-camera action. The raytracing performed by the RT cores can be used to produce reflections, refractions and shadows, replacing traditional raster techniques such as cube maps and depth maps. The Turing microarchitecture debuted with the Quadro RTX series before the mainstream consumer GeForce RTX line. This is accelerated by the use of new RT cores, which are designed to process quadtrees and spherical hierarchies, and speed up collision tests with individual triangles. The Quadro RTX series is based on the Turing microarchitecture, and features real-time raytracing. The DGX-1 is available with 8 GP100 Cards. All software with CUDA or OpenCL, such as ANSYS, NASTRAN, ABAQUS, and OpenFoam, can benefit from VCA. Nvidia Iray, Chaosgroup V-Ray and Nvidia OptiX accelerate Raytracing for Maya, 3DS Max, Cinema4D, Rhinoceros and others. Nvidia supports SLI and supercomputing with its 8-GPU Visual Computing Appliance.
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