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DirectX Raytracing (DXR) is a feature introduced in Microsoft's DirectX 12 that implements ray tracing, for video graphic rendering. DXR was released with the Windows 10 October update (version 1809) on October 10, 2018.
This is the basic principle used to create a shadow map. The light's view is rendered, storing the depth of every surface it sees (the shadow map). Next, the regular scene is rendered comparing the depth of every point drawn (as if it were being seen by the light, rather than the eye) to this depth map.
In Direct3D 11, the concept of feature levels has been further expanded to run on most downlevel hardware including Direct3D 9 cards with WDDM drivers.. There are seven feature levels provided by D3D_FEATURE_LEVEL structure; levels 9_1, 9_2 and 9_3 (collectively known as Direct3D 10 Level 9) re-encapsulate various features of popular Direct3D 9 cards conforming to Shader Model 2.0, while ...
This recursive ray tracing of reflective colored spheres on a white surface demonstrates the effects of shallow depth of field, "area" light sources, and diffuse interreflection. (c. 2008) In 3D computer graphics, ray tracing is a technique for modeling light transport for use in a wide variety of rendering algorithms for generating digital images.
In Raycasting, a ray originates at the point where the camera resides, and if that ray hits a surface, the color and lighting of the point on the surface where the ray hit is calculated. In 3D polygon rendering the reverse happens- the area that is given the camera is calculated and then rays are created from every part of every surface given ...
Various implementations of ray tracing hardware have been created, both experimental and commercial: (1995) Advanced Rendering Technology (ART) founded [6] in Cambridge, UK, based on a 1994 PhD thesis, to produce dedicated ray tracing silicon (initially the "AR250" chip, which accelerated ray-triangle intersection, bounding box traversal and shading), using a "RenderDrive" networked ...
Direct3D 12 version 2004 – Windows 10 May 2020 Update (version 2004) brings support for DirectX 12 Ultimate, Mesh & Amplification Shaders, [137] Sampler Feedback, [138] as well DirectX Raytracing Tier 1.1 [139] and memory allocation improvements.
DirectX 10 (Shader Model 4) and Cg 2.0 introduced geometry shaders. [6] DirectX 11 (Shader Model 5) introduced compute shaders and tessellation shaders (hull and domain). The latter is present in Cg 3.1. DirectX 12 (Shader Model 6.3) introduced ray tracing shaders (ray generation, intersection, bit / closest hit / miss).