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Ray Tracing | NVIDIA Developer
https://developer.nvidia.com/discover/ray-tracing#:~:text=%20Ray%20Tracing%20Fundamentals%20%201%20Ray%20casting,acceleration%20technique%20that%20uses%20a%20tree-based...%20More%20
Basic Ray Tracing - Department of Computer Science and ...
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
Ray Tracing Basics
https://web.cse.ohio-state.edu/~shen.94/681/Site/Slides_files/basic_algo.pdf
c,z. c) and radius R can be represented as: (x-x. c) + (y-y. c) + (z-z. c) - R = 0 For a point pon the sphere, we can write the above in vector form: (p-c). (p-c) - R = 0 (note ‘.’ is a dot product) We can plug the point on the ray p(t) = e+ t d. (e+td-c). (e+td-c) - R = 0 and yield (d.d) t + 2d.
Ray Tracing Basics I
http://cs.rit.edu/~jmg/courses/cgII/20072/slides/2-2-raytraceBasics1.pdf
Most of the computation in ray tracing is determining ray object-intersection When a ray intersects an object, we need to know: Point of intersection Normal of surface at point of intersection Ray-Sphere Intersection The Sphere A sphere can be defined by: Center (x c, y c, z c) Radius r Equation of a point (x s, y s, z s) on a sphere:
Basic Ray Tracing - University of Maryland, Baltimore County
https://www.csee.umbc.edu/courses/undergraduate/435/Spring16/lectures_post/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 Motion Blur Things move while the shutter is …
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