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DX12 Raytracing Tutorial - Extras - Depth Buffer - NVIDIA …
https://developer.nvidia.com/rtx/raytracing/dxr/dx12-raytracing-tutorial/extra/dxr_tutorial_extra_depth_buffer
While raytracing inherently addresses this issue, rasterization requires setting a depth buffer to ensure only the closest surfaces are visible. We need to add a depth buffer, as well as a specific heap to reference it. Add the following declarations in the header file:
The Light Buffer: A Shadow-Testing Accelerator | IEEE …
https://ieeexplore.ieee.org/document/4056983
A particularly powerful technique for simulating light reflection-an important element in creating this realism-is called ray tracing. This method produces images of excellent quality, but suffers from lengthy computation time that limits its practical use. This article presents a new method to reduce shadow testing time during ray tracing.
Raytraced rendering using t-buffer and shadow- buffer
https://www.microsoft.com/en-us/research/wp-content/uploads/2016/10/14.pdf
Ray-tracing is one of the most researched areas in 3D photo-realistic image synthesis. We propose the T-BUFFERalgorithm, which is a modification to the conventional ray-tracing algorithm and compares very favorably with it in terms of performance, which is achieved primarily through reduction in the number of unsuccessful intersection tests.
Raytraced rendering using t-buffer and shadow-buffer - Microsoft Research
https://www.microsoft.com/en-us/research/publication/raytraced-rendering-using-t-buffer-shadow-buffer/
Ray-tracing is one of the most researched areas in 3D photo-realistic image synthesis. We propose the T-BUFFER algorithm, which is a modification to the conventional ray-tracing algorithm and compares very favorably with it in terms of performance, which is achieved primarily through reduction in the number of unsuccessful intersection tests. Our major …
Ray tracing and Z buffering in graphics - Stack Exchange
https://gamedev.stackexchange.com/questions/146378/ray-tracing-and-z-buffering-in-graphics
Raytracing is often used for "offline" rendering. Raytracing algorithms give very good pixel quality at the cost of high execution time. Because Raytracing algorithms simulate a light model very similar to the real world, phenomenon such as shadows, reflection and refraction are all very intuitive and simple operations.
CS434-06-Ray Tracing
https://www.cs.purdue.edu/cgvlab/courses/434/434Spring2022/lectures/CS434-06-Ray%20Tracing.pdf
Ray Tracing - ShadowRay ShadowRay returns all visible lights it is easier than intersections we just need to know if there is an obstacle we do not need the intersection and normal we can exploit coherency and use the light buffer 20 E. A. Haines and D. P. Greenberg. 1986. The Light Buffer: A Shadow-Testing Accelerator. IEEE Comput. Graph.
Buffer functions - NVIDIA Ray Tracing Documentation
https://raytracing-docs.nvidia.com/optix6/api_6_5/html/group___buffer.html
rtBufferSetFormat changes the format of buffer to the specified value. The data elements of the buffer will have the specified type and can either be vector formats, or a user-defined type whose size is specified with rtBufferSetElementSize. Possible values for format are: RT_FORMAT_HALF. RT_FORMAT_HALF2.
Depth Buffers and Ray Tracing - YouTube
https://www.youtube.com/watch?v=Xks1v4GNUiY
Lecture 07: Determining if an object is in front of or behind another object.
Divide and Conquer G-Buffer Ray Tracing
https://dc.ewu.edu/cgi/viewcontent.cgi?httpsredir=1&article=1243&context=theses
tracing. Ray tracing works by following light from a light source and tracking its interactions with the scene on its way to the viewer, and is able to much more naturally handle e ects such as re ections and refractions. In addition to being slow, ray tracing can be unattractive for real time use as attempting to switch over to ray tracing
Screen Space Glossy Reflections - Roar11
http://roar11.com/2015/07/screen-space-glossy-reflections/
The cone tracing step needs access to all of the aforementioned buffers, including the resultant ray traced buffer and blurred light buffer, as well as a buffer containing the specular values for materials in view. ... He was critical in helping me understand and figure out Uludag’s use of the hierarchical Z-buffer for ray tracing and work ...
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