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Ray Tracing T. Whitted. An improved illumination …
https://courses.cs.washington.edu/courses/cse557/14au/lectures/markup/ray-tracing-markup-4pp.pdf
Whitted Ray-Tracing - Scratchapixel
https://www.scratchapixel.com/lessons/3d-basic-rendering/ray-tracing-overview/light-transport-ray-tracing-whitted?url=3d-basic-rendering/ray-tracing-overview/light-transport-ray-tracing-whitted
And naturally, Whitted used ray-tracing in his particular implementation to compute the visibility between points (between the eye and P1, P1 and P2, P2 and P3 and finally P3 and the light in our examples). On a general note, Whitted was the first to use ray-tracing to simulate these effects. Not surprisingly, his technique got a lot of success ...
Raytracing Pseudocode - University of Texas at Austin
https://www.cs.utexas.edu/~theshark/courses/cs354/lectures/cs354-raytracing_pseudocode.pdf
Raytracing Pseudocode. Raytracing Pseudocode. functiontraceImage (scene): for each pixel (i,j) in image. S= PointInPixel. P= CameraOrigin. d= (S- P)/|| S– P|| I(i,j) = traceRay(scene, P, d) end for. end function. functiontraceRay(scene, P, d): (t, N, mtrl) ← scene.intersect (P, d)
Ray Tracing - University of Washington
https://courses.cs.washington.edu/courses/cse457/06au/lectures/ray-tracing.pdf
Ray-tracing pseudocode We build a ray traced image by casting rays through each of the pixels. function traceImage (scene): for each pixel (i,j) in image A = pixelToWorld(i,j) P = COP d = (A-P)/|| A – P|| I(i,j) = traceRay(scene, P, d) end for end function function traceRay(scene, P, d): (t, N, mtrl) ←scene.intersect (P, d) Q Åray (P, d) evaluated at t
GitHub - elmanhamdi/Whitted-Ray-Tracing
https://github.com/elmanhamdi/Whitted-Ray-Tracing
Contribute to elmanhamdi/Whitted-Ray-Tracing development by creating an account on GitHub.
Large Ray Packets for Real-time Whitted Ray Tracing
https://cseweb.ucsd.edu/~ravir/whitted.pdf
The pseudo-code for Masked traversal in Figure 2 provides a basis for introducing all of the large ray packet algorithms in this Section. At each step, all rays are tested against the current cell. If any ray hits at line 10, then all rays continue through the tree together. At a leaf cell, lines 21– 27, we check if the bounding
Whitted - Rayground: Ray tracing prototyping on the web
https://www.rayground.com/view/LYnWPJNFuPU
output ray origin (.xyz origin, .w RG_RAY_ACTIVE_FLAG or RG_RAY_INACTIVE_FLAG). func vec4 : rg_Random(uint index, uint seed0, uint seed1) Obtain 4 random values from a counter-based pseudo-random sequence. func bool : rg_TraceOcclusion (vec3 origin, vec3 direction, float length) Trace the given ray segment against the scene and test for intersections.
Ray Tracing - University of Washington
https://courses.cs.washington.edu/courses/csep557/19sp/assets/lectures/ray-tracing-1pp.pdf
Ray-tracing pseudocode We build a ray traced image by casting rays through each of the pixels. functiontraceImage(scene): for each pixel (i, j) in image A= pixelToWorld(i, j) P= C d= (A–P )/|| A–P || I(i,j)= traceRay(scene, P, d) end for end function functiontraceRay(scene, P, d): (t Ç, N, mtrl) ¬scene.intersect(P, d) Qßray (P, d) evaluated at t Ç
Ray Tracing - University of Texas at Austin
https://www.cs.utexas.edu/users/fussell/courses/cs384g-fall2011/lectures/lecture09-Ray_tracing.pdf
Ray-tracing pseudocode, cont’d function traceRay(scene, P, d): (t, N, mtrl) ← scene.intersect (P, d) Q ray (P, d) evaluated at t I = shade(q, N, mtrl, scene) R = reflectDirection(N, -d) I ← I + mtrl.k r * traceRay(scene, Q, R) if ray is entering object then n_i = index_of_air n_t = mtrl.index else n_i = mtrl.index n_t = index_of_air
Ray Tracing - University of Texas at Austin
https://www.cs.utexas.edu/~fussell/courses/cs384g-spring2017/lectures/Lecture4-Raytracing.pdf
Whitted ray-tracing algorithm In 1980, Turner Whitted introduced ray tracing to the graphics community. Combines eye ray tracing + rays to light Recursively traces rays Algorithm: 1. For each pixel, trace a primary ray in direction V to the first visible surface. 2. For each intersection, trace secondary rays: Shadow rays in directions L i
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