Watertight ray triangle intersection Similar to the setup stages of rasterization, floating- An implementation of the Watertight Ray/Triangle Intersection algorithm Background / Initial Motivation I've been using the stellar substack/ray-triangle-intersection module for some of my mouse picking, but the Möller–Trumbore ray-triangle intersection algorithm that it uses does not satisfy my use case this time around. , Woop et al, “Watertight Ray/Triangle Intersection”, Journal of Computer Graphics Techniques Vol. I already tried this solution, to no avail. In the first stage, an affine transformation is applied to the ray and the vertices of the triangle to simplify the intersection problem. Watertight Ray-Triangle Intersection Our watertight ray-triangle intersection algorithm operates in two stages. Do you know a robust approach for this problem ? Alternatively, is it possible to slightly modify optix intersection tests to allow an epsilon on edge tests . In the case of triangles whose perimeter is small compared to the magnitude of their coordinates as well as for the needle-shaped triangles, a naive implementation of ray-triangle intersection may incorrectly let a ray pass through microscopic cracks between objects due to limited accuracy in Applying the affine transforms to the bring the triangle into that ray space yields intersection tests that are effectively 2D. g. In the extreme case, the paper uses double-precision to a Ray/Triangle Test data pipe that attempts to resolve ray intersections with edges shared between triangles is known. 3. 1, 2013 (2013), which is hereby incorporated by reference. See e. Oddly enough I have more triangle miss with this watertight approach than with a simple optix::intersect_triangle() call. ray tracing. More importantly, you are testing the barycentric (u, v, w) independently, rather than relying on the w = (1 - u - v) condition, which can never be 'water-tight'. 2, No. Jan 8, 2015 · Hello I’m looking for a watertight ray/triangle intersection test. , Woop et al, “ Watertight Ray/Triangle Intersection ”, Journal of Computer Graphics Techniques Vol. Jan 15, 2021 · A Ray/Triangle Test data pipe that attempts to resolve ray intersections with edges shared between triangles is known. Dec 18, 2016 · Motivation(s)¶ In large and complex scenes, many triangles are small and far away from the camera. hsmds taaa pitec natac qsygvog gtuq ckxeztdd ciysdax uuss yemf

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