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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 ...
Ray Tracing 101: Octrees for faster intersection · Julian ...
https://vertexwahn.de/2022/03/12/octree/
Efficient intersection between rays and objects can be achieved by using acceleration structures such as octrees. The idea of an octree is to split the space into $8$ equal-sized octants (hence the name). The 2D variant of an octree is a quadtree. Analogous a binary tree can be considered to be the 1D variant of an octree and a quadtree. I use quadtrees in the …
xna - Octree raycasting/raytracing - best ray/leaf ...
https://stackoverflow.com/questions/6281415/octree-raycasting-raytracing-best-ray-leaf-intersection-without-recursion
Here's what it looks like when I stop at the root bounds, without using the DDA to traverse the tree: /* find which leaf, if any, the ray intersects. Returns transparency (Color (0,0,0,0)) if no intersection was found. TestValue is a shader constant parameter passed from the caller which is used to dynamically adjust the number of loops the ...
raytracing - Using octree for cheking intersection of ray ...
https://computergraphics.stackexchange.com/questions/8874/using-octree-for-cheking-intersection-of-ray-and-meshes
In narrow phase I check intersection of ray and each triangle of the meshes from broad phase using Möller-Trumbore algorithm. In general it works well. Now my task is to optimize broad phase using Octree. Octree as data structure is well-described and trivial enough.
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