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What are caustics and how to render them the right way
https://www.chaos.com/blog/what-are-caustics-and-how-to-render-them-the-right-way
Idea 1: Use Bi-Directional Path Tracing. One idea is what is called “Bi-Directional Path Tracing” — or BDPT. This solution is fairly fast, but when it comes to caustics it ends up missing too many caustic rays and we end up with a solution where, in many cases, we hardly see the caustic at all.
Caustic (optics) - Wikipedia
https://en.wikipedia.org/wiki/Caustic_(optics)
Generating Ray-Traced Caustic Effects in Unreal Engine 4, Part 1
https://developer.nvidia.com/blog/generating-ray-traced-caustic-effects-in-unreal-engine-4-part-1/
Generating Ray-Traced Caustic Effects in Unreal Engine 4, Part 1 Mesh caustics. We started simulating mesh caustics by restructuring techniques from a category of light propagation... Basic workflow. Task buffer – A structured buffer recording light rays to trace in the current frame. Photon buffer ...
Generating Ray-Traced Caustic Effects in Unreal Engine 4, …
https://developer.nvidia.com/blog/generating-ray-traced-caustic-effects-in-unreal-engine-4-part-2/
The workflow consists of four steps: Render water surfaces into caustics maps from the light view, recording the positions and normals of the water surface. Generate rays from positions recorded in the caustics maps and trace them along the reflected or refracted directions... Render caustics into ...
pathtracing - Caustics: methods to render? - Stack …
https://computergraphics.stackexchange.com/questions/5014/caustics-methods-to-render
First of all, you can get caustics just by Path Tracing. Caustics isn't a difficult phenomenon in computer graphics. Almost any global illumination algorithm can render it. It's just a matter of the converging speed. While (naive) Path Tracing can render caustics, it takes a long time to clean the rendered image due to how the algorithm works.
Caustics Ray Tracing CSS 522 Steve Dame Aysun
https://slidetodoc.com/caustics-ray-tracing-css-522-steve-dame-aysun/
Caustics Ray Tracing CSS 522 Steve Dame Aysun. Slides: 21; Download presentation. Caustics Ray Tracing CSS 522 Steve Dame Aysun Simitci Sabitha Abraham 9/5/2021 Page 1 ...
How to render caustics with the new caustics solver in …
https://support.chaos.com/hc/en-us/articles/4954589213457-How-to-render-caustics-with-the-new-caustics-solver-in-3ds-Max-
The refractive material cannot be using "Thin (no refraction)" option, as refraction is required to render caustics. A light source (small, bright light will produce sharp, intensive caustics). A surface which will catch the caustics (a ground plane, table top, etc.)
Rendering the Real-Time Caustics with DirectX Raytracing
http://ceur-ws.org/Vol-3027/paper4.pdf
The creation of the caustic visibility maps replaces the first step of ray tracing. The use of rasterization in this case significantly reduces the computation time and allows determining areas within which it makes sense to trace further rays. This also allows us …
Real-Time Volume Caustics with Adaptive Beam Tracing
https://cg.ivd.kit.edu/downloads/VolumeCaustics_Preprint.pdf
of caustics: particle tracing, e.g. [Wyman and Nichols2009; Hu et al. 2010] (discussed in Sect. 2), and beam tracing methods [Ernst et al. 2005]. Methods that fall within the latter category compute beams of light reflected or refracted at a part of a surface, e.g. a triangle in a mesh. Every beam is bounded by a base triangle and
Found: A fast and accurate way to optimize fusion energy …
https://www.pppl.gov/news/2021/found-fast-and-accurate-way-optimize-fusion-energy-devices
Caustics arise in fusion research when researchers beam RF waves into the plasma that fuels fusion reactions to help raise it to the required million-degree temperatures. “The wave can be propagating through the plasma and hit a region that’s too difficult to propagate in and bounces back and you have a caustic there,” Lopez said.
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