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GPU-Octree-Ray-Tracing-for-PCL - GitHub
https://github.com/yiluo1992/PointCould_RayTracing_PCL_GPU_Octree
PointCould RayTracing for PCL GPU Octree. Contribute to yiluo1992/PointCould_RayTracing_PCL_GPU_Octree development by creating an account on GitHub.
Octree rasterization: accelerating high-quality out-of-core …
https://pubmed.ncbi.nlm.nih.gov/22778151/
Our solutions move the branch-intensive accelerating structure traversal out of the GPU raycasting loop and introduce an efficient empty-space culling method by rasterizing the proxy geometry of a view-dependent cut of the octree nodes. This rasterization pass can capture all of the bricks that the ray penetrates in a per-pixel list.
Ray Tracing Complex Objects Using Octrees
https://www.cs.swarthmore.edu/~jcarste1/pdfs/octree.pdf
Ray tracing has been around since its proposal by Arthur Appel in 1968 [1] and since has become one of the most com-mon ways to render images. ... The nal aspect of the Octree implementation is the ray-octree intersection that needs to be calculated in order to know which leaf nodes are pierced by a ray. This is done by taking the ray ...
PointCould_RayTracing_PCL_GPU_Octree/perfomance.cpp …
https://github.com/yiluo1992/PointCould_RayTracing_PCL_GPU_Octree/blob/master/test/perfomance.cpp
PointCould RayTracing for PCL GPU Octree. Contribute to yiluo1992/PointCould_RayTracing_PCL_GPU_Octree development by creating an …
Interactive Isosurface Ray Tracing of Large Octree …
http://sci.utah.edu/~wald/Publications/2006/OctIso/download/octiso.pdf
While the octree volume (a) is given with voxels at the center of each node, we actually seek to ray trace a field of cells with voxel values at the corners (b). To accomplish this, we observe a duality between voxels and cells, by mapping each voxel to the lower-left corner of a cell. Values outside the octree data (in gray) are defined to be zero.
IMPLEMENTING RAY TRACING WITH OCTREES AND …
https://www.cs.umd.edu/~hjs/pubs/SameCG89.pdf
From a procedural point of view, the term ray tracing (or ray casting) describes the process of casting a ray from the viewpoint through a given pixel on the image plane that appears between the viewpoint and the scene. The pixel is identified with the surface of the nearest object that intersects the ray.
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