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Basic Raytracing - Computer Graphics from Scratch ...
https://www.gabrielgambetta.com/computer-graphics-from-scratch/02-basic-raytracing.html
Ray Tracing Essentials Part 1: Basics of Ray Tracing ...
https://developer.nvidia.com/blog/ray-tracing-essentials-part-1-basics-of-ray-tracing/
In Part 1: Basics of Ray Tracing, Haines runs through the basics of ray and path tracing. To begin, he defines a ray and notes how it is useful for different operations in computer graphics. Rays can be cast to test for shadows, for example. “In 1980, Whitted introduced the idea of recursive ray casting, known as ray tracing.
Introduction to Ray Tracing: a Simple Method for Creating ...
https://www.scratchapixel.com/lessons/3d-basic-rendering/introduction-to-ray-tracing
Basic Ray Tracing
https://www.csee.umbc.edu/~adamb/435/Slides/raytrace.pdf
Full Ray-Tracing • For each pixel – Compute ray direction – Find closest surface – For each light • Shoot shadow ray • If not shadowed, add direct illumination – Shoot ray in reflection direction – Shoot ray in refraction direction Dielectric if (pis on a dielectric) then r= reflect (d, n) if (d.n< 0) then refract (d, n, n, t) c = -d.n
Introduction to Ray Tracing: a Simple Method for Creating ...
https://www.scratchapixel.com/lessons/3d-basic-rendering/introduction-to-ray-tracing/ray-tracing-practical-example
To create an image, run the program by typing ./raytracer in a shell. Wait a few seconds. When the program returns, you should have a file called untitled.ppm on your disk. You can open this file with Photoshop, Preview (on Mac), or Gimp (on Linux). Alternatively, check the lesson devoted to reading and displaying PPM images.
Ray Tracing Basics
http://www.cs.oswego.edu/~alex/teaching/csc470/slides/basic_raytracing.pdf
Basic Ray Tracing Algorithm for every pixel { cast a ray from the eye for every object in the scene find intersections with the ray keep it if closest } compute color at the intersection point} Construct a Ray 3D parametric line p(t) = eye + t (s-eye) …
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