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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
Whitted proposed to use these laws to compute the reflection and refraction direction of rays as they intersect reflective or transparent surfaces, and follow the path of these rays to find out the color of the object they would intersect.
Ray-Tracing Pioneer Explains How He Stumbled into …
https://blogs.nvidia.com/blog/2018/08/01/ray-tracing-global-illumination-turner-whitted/
Ray Tracing T. Whitted. An improved illumination model for
https://courses.cs.washington.edu/courses/cse557/14au/lectures/markup/ray-tracing-markup-4pp.pdf
Whitted ray tracing Finally, we’ll add refraction, giving us the Whitted ray tracing model: 22 Shading with reflection and refraction Let I(P, d) be the intensity seen along a ray. Then: I(P, d) = I direct + I reflected + I transmitted where I direct is computed from the Blinn-Phong model, plus shadow attenuation I reflected = k rI (Q, R) I
Introduction to Ray Tracing: a Simple Method for Creating …
https://www.scratchapixel.com/lessons/3d-basic-rendering/introduction-to-ray-tracing/adding-reflection-and-refraction
Refraction takes place every time there's a change of medium and that two media, the one the ray exits from and the one it gets in, have a different index of refraction. As you probably know the refraction index of air is very close to 1 and the refraction index of glass is around 1.5). Refraction has for effect to bend the ray slightly.
Large Ray Packets for Real-time Whitted Ray Tracing
https://cseweb.ucsd.edu/~ravir/whitted.pdf
Beyond primary visibility, Whitted ray tracing re- quires secondary rays for point-light shadows, reflections, and re- fractions. According to [6], ray coherence degrades for these sec- ondary effects, and we expect a corresponding drop in performance for large ray packet algorithms.
TURNER WHITTED’S RAY-TRACING ALGORITHM: PRACTICE
https://fenix.tecnico.ulisboa.pt/downloadFile/845043405513837/ray_tracing_practice.pdf
Whitted ray tracing It combines in a single model: Hidden surface removal Shading due to direct illumination Shading due to indirect illumination (reflection and refraction effects due to mirror/transparent objects) Shadow computation (hard shadows) Ray Casting
Ray tracing (graphics) - Wikipedia
https://en.wikipedia.org/wiki/Ray_tracing_(graphics)
Turner Whitted was the first to show recursive ray tracing for mirror reflection and for refraction through translucent objects, with an angle determined by the solid's index of refraction, and to use ray tracing for anti-aliasing. Whitted also showed ray traced shadows.
Turner Whitted Ray Tracing - Northwestern University
https://users.cs.northwestern.edu/~ago820/cs351/Slides/RayTracingSlides.pdf
Ray Tracing CS 351-50 Turner Whitted No Bounces. 2 One Bounce Two Bounces Reflection Ray R = ( -I . N) N - I + (-I . ... N) N I = incident ray = -d N = normal vector R = reflected ray. 3 Adding an object: transparency Refraction ... With recursive ray tracing (Section 16.12). (Courtesy Of Turner
RayTracing – Adding Reflection and Refraction – Cheney …
https://cheneyshen.com/raytracing-adding-reflection-and-refraction/
Refraction takes place every time there’s a change of medium and that two media, the one the ray exits from and the one it gets in, have a different index of refraction. As you probably know the refraction index of air is very close to 1 and the refraction index of glass is around 1.5). Refraction has for effect to bend the ray slightly.
Ray Tracing - courses.cs.washington.edu
https://courses.cs.washington.edu/courses/cse457/06au/lectures/ray-tracing.pdf
Light rays travel in straight lines in free space. Light rays do not interfere with each other as they cross. Light rays obey the laws of reflection and refraction. Light rays travel from the light sources to the eye, but the physics is invariant under path reversal (reciprocity). 4 Eye vs. light ray tracing Where does light begin?
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