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Ray-Tracing: Generating Camera Rays (Definition of a Ray)
https://www.scratchapixel.com/lessons/3d-basic-rendering/ray-tracing-generating-camera-rays
Ray tracing (physics) - Wikipedia
https://en.wikipedia.org/wiki/Ray_tracing_(physics)
Introduction to Computer Graphics, Section 8.1 -- Ray Tracing
https://math.hws.edu/graphicsbook/c8/s1.html
8.1.2 Recursive Ray Tracing. Basic ray casting can be used to compute OpenGL-style rendering and, with the addition of shadow rays, to implement shadows as well. More features can be implemented by casting a few more rays. The improved algorithm is called ray tracing. Consider specular reflection. In OpenGL, specular reflection can make an ...
Raytracing/RayTracer.compute at master · …
https://github.com/Kevinsomnia/Raytracing/blob/master/Assets/Main%20Project/Shaders/RayTracer.compute
Shoot ray towards light source(s) to determine if there's anything in between light and this point. Ray shadowRay = CreateRay(ray.origin, -_LightDirection.xyz); RayHit shadowHit = Raytrace(shadowRay);
Real-Time Ray Tracing | Unreal Engine Documentation
https://docs.unrealengine.com/4.26/en-US/RenderingAndGraphics/RayTracing/
Under Engine > Rendering, enable Ray Tracing. To enable Ray Tracing, Support Compute Skincache must be enabled for the project. If it is not already enabled, you'll receive a message dialogue asking if you would like to enable it now. If so, click Yes. Restart the engine to launch the Editor with DX12 and to enable Ray Tracing for your project.
Basic Ray Tracing - Inspiring Innovation
https://www.csee.umbc.edu/~adamb/435/Slides/raytrace.pdf
Ray Tracing Reflection • Viewer looking in direction d sees whatever the viewer “below” the surface sees looking in direction r ... Full Ray-Tracing • For each pixel – Compute ray direction – Find closest surface – For each light • Shoot shadow ray …
Ray Tracing Basics
https://web.cse.ohio-state.edu/~shen.94/681/Site/Slides_files/basic_algo.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) r(t): ray equation
RayTracing - UC Santa Barbara
https://sites.cs.ucsb.edu/~yfwang/courses/cs180/notes/raytracing.pdf
Sampling In the simplest case, choose our sample points at pixel centers For better results, can supersample – e.g., at corners and at center Even better techniques do adaptive sampling: increase sample density in areas of rapid change (in geometry or lighting) With stochastic sampling, samples are taken probabilistically; converges faster than regularly spaced sampling
Ray tracing propagation model - MATLAB
https://www.mathworks.com/help/comm/ref/rfprop.raytracing.html
Ray tracing models: Are valid from 100 MHz to 100 GHz. Compute multiple propagation paths. Other propagation models compute only single propagation paths. Support 3-D outdoor and indoor environments. Determine the path loss and phase shift of each ray using electromagnetic analysis, including tracing the horizontal and vertical polarizations of ...
Basic Ray Tracing - University of Texas at Austin
https://www.cs.utexas.edu/~theshark/courses/cs354/lectures/cs354-4.pdf
• Combines eye ray tracing + rays to light and recursive tracing • Algorithm: 1. For each pixel, trace primary ray in direction V to the first visible surface. 2. For each intersection trace secondary rays: • Shadow in direction L to light sources • Reflected in direction R • Refracted (transmitted) in direction T 3. Calculate shading ...
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