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Introduction to Shading (Light and Shadows)
https://www.scratchapixel.com/lessons/3d-basic-rendering/introduction-to-shading/ligth-and-shadows#:~:text=If%20you%20use%20ray-tracing%2C%20computing%20shadowing%20can%20be,the%20point%20of%20intersection%20to%20the%20light%20source.
Ray Tracing: shading - Cornell University
https://www.cs.cornell.edu/courses/cs4620/2017sp/slides/05rt-shading.pdf
Ray Tracing (Shading)
https://www.cs.cornell.edu/courses/cs4620/2012fa/lectures/35raytracing.pdf
Ray tracing dielectrics •Like a simple mirror surface, use recursive ray tracing •But we need two rays –One reflects off the surface (same as mirror ray) –The other crosses the surface (computed using Snell’s law) •Doesn’t always exist (total internal reflection) •Splitting into two rays, recursively, creates a ray tree
Ray tracing and shading
http://graphics.cs.cmu.edu/courses/15-468/lectures/lecture3.pdf
Ray tracing and simple shading 15-468, 15-668, 15-868 Physics-based Rendering http://graphics.cs.cmu.edu/courses/15-468 Spring 2021, Lecture 3 1 Course announcements • Take-home quiz 1 will be posted tonight, Tuesday 2/9, and will be due a week later. • Programming assignment 1 will be posted on Friday 2/12, will be due two weeks later.
Ray Tracing: shading - Cornell University
https://www.cs.cornell.edu/courses/cs4620/2014fa/lectures/05rt-shading.pdf
• Solution: shadow rays start a tiny distance from the surface • Do this by moving the start point, or by limiting the t range 13 Cornell CS4620 Fall 2014 • Lecture 5 © 2014 Steve Marschner • …
Ray tracing (graphics) - Wikipedia
https://en.wikipedia.org/wiki/Ray_tracing_(graphics)
Ray Tracing (Shading and Sampling) - Cornell University
https://www.cs.cornell.edu/courses/cs4620/2012fa/lectures/36raytracing.pdf
Ray tracing dielectrics •Like a simple mirror surface, use recursive ray tracing •But we need two rays –One reflects off the surface (same as mirror ray) –The other crosses the surface (computed using Snell’s law) •Doesn’t always exist (total internal reflection) •Splitting into two rays, recursively, creates a ray tree
Ray Tracing: intersection and shading
https://www.cs.cornell.edu/courses/cs4620/2013fa/lectures/03raytracing1.pdf
Cornell CS4620 Fall 2013 • Lecture 3 © 2013 Steve Marschner • Ray intersection 2
Ray Tracing for Windows | Minecraft
https://www.minecraft.net/en-us/updates/ray-tracing
Enabled by Minecraft’s Render Dragon graphics engine, ray tracing brings realistic lighting capabilities, such as global illumination and per pixel lighting, plus support for advanced textures to your world. Ray tracing is available for DirectX capable devices, such as GeForce RTX GPU and select AMD GPUs.
Introduction to Shading (Light and Shadows) - Scratchapixel
https://www.scratchapixel.com/lessons/3d-basic-rendering/introduction-to-shading/ligth-and-shadows
If you use ray-tracing, computing shadowing can be done while the main image is being rendered (it doesn't require to precompute a special image such as a shadow map). All we need to do is cast a ray from the object visible through a particular pixel of the frame, from the point of intersection to the light source.
Introduction to Shading (Normals, Vertex Normals and …
https://www.scratchapixel.com/lessons/3d-basic-rendering/introduction-to-shading/shading-normals
This technique consists of computing the dot product of the normal of the point that we want to shade and the viewing direction. Computing the viewing direction is also very simple. When ray-tracing is used, it is simply the opposite direction of the ray that intersected the surface at P.
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