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Two Minute Papers · 发布于 2015年10月26日
Photorealistic rendering (also called global illumination) enables us to see how digital objects would look like in real life. It is an amazingly powerful tool in the hands of a professional artist, who can create breathtaking images or animations with. However, images created with these technique contain a substantial amount of noise until a large number of light rays are computed. Today, we're going to talk about how to use gradients and Poisson's equation to speed up this process substantially. ________________________ The paper "Gradient-Domain Path Tracing" is available here: https://mediatech.aalto.fi/publications/graphics/GPT/ The paper "Gradient-Domain Metropolis Light Transport" is available here: https://mediatech.aalto.fi/publications/graphics/GMLT/ I held a course on photorealistic rendering at the Technical University of Vienna. Here you can learn how the physics of light works and to write programs like this: https://www.youtube.com/playlist?list=PLujxSBD-JXgnGmsn7gEyN28P1DnRZG7qi Recommended for you: Metropolis Light Transport - https://www.youtube.com/watch?v=f0Uzit_-h3M&index=9&list=PLujxSBD-JXgnqDD1n-V30pKtp6Q886x7e Manipulating Photorealistic Renderings - https://www.youtube.com/watch?v=L7MOeQw47BM&index=6&list=PLujxSBD-JXgnqDD1n-V30pKtp6Q886x7e A talk on ray tracing - https://www.youtube.com/watch?v=qyDUvatu5M8 The Moon's elevation map is provided by NASA and is available here (license: CC BY 2.0) - https://flic.kr/p/aFqE3n Music: "Infinite Perspective" by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1500024 Artist: http://incompetech.com/ Subscribe if you would like to see more of these! - http://www.youtube.com/subscription_center?add_user=keeroyz Splash screen/thumbnail design: Felícia Fehér - http://felicia.hu Károly Zsolnai-Fehér's links: Patreon → https://www.patreon.com/TwoMinutePapers Facebook → https://www.facebook.com/TwoMinutePapers/ Twitter → https://twitter.com/karoly_zsolnai Web → https://cg.tuwien.ac.at/~zsolnai/
