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Ray tracing tutorial - section 7: specular highlights, directional and ...
https://www.groovyvis.com/other/raytracing/specular.html
Raytracing Reflection, Refraction, Fresnel, Total Internal …
https://blog.demofox.org/2017/01/09/raytracing-reflection-refraction-fresnel-total-internal-reflection-and-beers-law/
Let’s talk about how to do real mirror like specular reflection in a ray tracer. When light hits a surface, some amount of the light will be reflected, and some amount of the light will be transmitted into the object. Transmitted light is used for the diffuse shading.
Chapter 17. Robust Multiple Specular Reflections and …
https://developer.nvidia.com/gpugems/gpugems3/part-iii-rendering/chapter-17-robust-multiple-specular-reflections-and-refractions
Specular reflections in hybrid ray tracing
https://patentcut.com/US10950030
The present invention teaches a real-time hybrid ray tracing method for non-planar specular reflections. The non-planar surface is handled by multiple small planar surfaces. Advantage is taken of the planar nature of triangles that comprise building blocks of a non-planar surface.
CS434-06-Ray Tracing
https://www.cs.purdue.edu/cgvlab/courses/434/434Spring2022/lectures/CS434-06-Ray%20Tracing.pdf
Ray Tracing • RT simulates specular to specular reflection • mirrors are perfect ("quick fixies") • RT is an image space algorithm i.e., it is driven by the viewport • RT is recursive as long as specular to specular reflection occurs 4 © Bedrich Benes Ray Tracing • Tracing terminates if
Ray Tracing (Shading)
https://www.cs.cornell.edu/courses/cs4620/2012fa/lectures/35raytracing.pdf
specular coefficient specularly reflected light n v h A l 15 h = bisector(v, l) = v + l v + l n © 2012 Kavita Bala • (with previous instructors James/Marschner) Cornell CS4620/5620 Fall 2012 • Lecture 35 Putting it together •Usually include ambient, diffuse, Phong in one model •The final result is the sum over many lights 16 L = L a+ L d+ L s = k aI
Ray Tracing - University of Washington
https://courses.cs.washington.edu/courses/csep557/19sp/assets/lectures/ray-tracing-1pp.pdf
We'll call these flows “light rays.” wLight rays travel in straight lines in free space. wLight rays do not interfere with each other as they cross. wLight rays obey the laws of reflection and refraction. wLight rays travel from the light sources to the eye, but the physics is invariant under path reversal (reciprocity). 4 Eye vs. light ray tracing
Raytracing - how to combine diffuse and specular color?
https://stackoverflow.com/questions/15619830/raytracing-how-to-combine-diffuse-and-specular-color
This has long been an issue with the "specular + diffuse + ambient" model of illumination. Namely, it is a hack and therefore, has no guarantee of correctness. If you're so keen on cementing your fundamentals first, take a look at the excellent book "Physically Based Ray Tracing" by Matt Pharr and Greg Humphreys.
raytracing - Ray tracing glossy reflection: sampling ray …
https://stackoverflow.com/questions/32077952/ray-tracing-glossy-reflection-sampling-ray-direction
Specular reflection means that the angle between the incoming direction and the surface normal is equal to the angle between the outgoing direction and the surface normal. Diffuse reflection means that the angle of the outgoing direction is randomly & evenly distributed about the surface normal's hemisphere.
Ray tracing and shading
http://graphics.cs.cmu.edu/courses/15-468/lectures/lecture3.pdf
for reflectance Idealized material models Diffuse reflection - light is reflected in all directions - colored by surface color Smooth specular reflection/refraction (e.g. chrome, glass, glaze/varnish) - light reflected/refracted only in a single direction - colored by source color 15 Idealized materials 16 Diffuse reflection 17 Diffuse reflection
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