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Ray Tracing Triangular Meshes - York University
http://www.cs.yorku.ca/~amana/research/mesh.pdf
Ray Tracing Triangular Meshes John Amanatides Kin Choi Dept. of Computer Science York University North York, Ontario Canada, M3J 1P3 [email protected] ABSTRACT This paper describes two approaches that allow us to intersect rays with triangular meshes more quickly by amortizing computation over neighbouring triangles. The first approach accom-
c++ - ray tracing triangular mesh objects - Stack Overflow
https://stackoverflow.com/questions/13440291/ray-tracing-triangular-mesh-objects
Show activity on this post. I'm trying to write a ray tracer for any objects formed of triangular meshes. I'm using an external library to load a cube from .ply format and then trace it down. So far, I've implemented most of the tracer, and now I'm trying to test it with a single cube, but for some reason all I get on the screen is a red line.
[PDF] Ray Tracing Triangular Meshes | Semantic Scholar
https://www.semanticscholar.org/paper/Ray-Tracing-Triangular-Meshes-Amanatides-Choi/c9ab467f41c1a56275b1f3c100b2981a5780223d
This paper describes two approaches that allow us to intersect rays with triangular meshes more quickly by amortizing computation over neighbouring triangles. The first approach accomplishes this by performing the in-out test for each triangle using three plane equations, each one representing a boundary edge for the triangle. Each plane is shared between four neighbouring …
Creating Optimal Meshes for Ray Tracing | NVIDIA …
https://developer.nvidia.com/blog/creating-optimal-meshes-for-ray-tracing/
Avoid elongated triangles in meshes. Thin and long, elongated triangles are rarely optimal in computer graphics, but they can be especially …
GitHub - ksskreddy/RayTracing-on-Triangle-Meshes: Ray …
https://github.com/ksskreddy/RayTracing-on-Triangle-Meshes
Ray tracing on traingle meshes. Contribute to ksskreddy/RayTracing-on-Triangle-Meshes development by creating an account on GitHub. ... Ray Casting on Triangle Meshes Overview. Projection and animation of arbitrary number of objects given in obj format using a computer graphics technique called "Ray casting" to make them look realistic.
Ray-Tracing a Polygon Mesh (From Polygon to Triangle …
https://www.scratchapixel.com/lessons/3d-basic-rendering/ray-tracing-polygon-mesh
For the sake of simplicity and generality it is usually much better to convert the polygon mesh into a triangle mesh and ray-trace each individual triangle rather than developing an algorithm to ray trace polygons. This partially explains why we put so much effort into ray-tracing triangles efficiently (as explained in the previous lesson).
Figure 1 from Ray Tracing Triangular Meshes | Semantic …
https://www.semanticscholar.org/paper/Ray-Tracing-Triangular-Meshes-Amanatides-Choi/c9ab467f41c1a56275b1f3c100b2981a5780223d/figure/0
This paper describes two approaches that allow us to intersect rays with triangular meshes more quickly by amortizing computation over neighbouring triangles. The first approach accomplishes this by performing the in-out test for each triangle using three plane equations, each one representing a boundary edge for the triangle.
Ray tracing with triangle meshes in WebGL failing with …
https://stackoverflow.com/questions/55038198/ray-tracing-with-triangle-meshes-in-webgl-failing-with-3k-triangles
Ray tracing with triangle meshes in WebGL failing with 3k+ triangles. Ask Question Asked 3 years, 1 month ago. Modified 3 years, 1 month ago. Viewed 244 times 0 I was testing the ray tracer that i wrote for some fps feedback. With meshes that are 3k+ triangles it renders for like 2 seconds correctly then the whole canvas turns into red color ...
Ray-Tracing a Polygon Mesh
https://www.scratchapixel.com/lessons/3d-basic-rendering/ray-tracing-polygon-mesh/Ray-Tracing%20a%20Polygon%20Mesh-part-1
As we suggested before, ray-tracing a polygon mesh which has been triangulated is really simple. We already have a routine to compute the intersection of rays and triangles. Therefore, to test if a ray intersects a polygon mesh, all we need to do is loop over all the triangles in the mesh and test each individual triangle against the ray.
A Beautiful Ray/Mesh Intersection Algorithm - tavianator.com
https://tavianator.com/2014/ray_mesh.html
Since meshes are often stored in a corner table, which is simply an array of triangle fans, this gives an efficient algorithm for ray tracing triangle meshes. The aforementioned algorithm computes ray/triangle intersections with 1 division, 20 multiplications, and up to 18 additions. It also required storing an affine transformation matrix ...
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