{"id":23792,"date":"2018-12-28T16:42:35","date_gmt":"2018-12-28T21:42:35","guid":{"rendered":"https:\/\/mjtsai.com\/blog\/?p=23792"},"modified":"2018-12-28T16:42:35","modified_gmt":"2018-12-28T21:42:35","slug":"deciphering-the-postcard-sized-raytracer","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2018\/12\/28\/deciphering-the-postcard-sized-raytracer\/","title":{"rendered":"Deciphering the Postcard Sized Raytracer"},"content":{"rendered":"<p><a href=\"http:\/\/fabiensanglard.net\/postcard_pathtracer\/\">Fabien Sanglard<\/a>:<\/p>\n<blockquote cite=\"http:\/\/fabiensanglard.net\/postcard_pathtracer\/\"><p>This time Andrew produced something a little bit more verbose but with a much more interesting visual result. Since I was done with my Game Engine Black Books about Wolf3D and DOOM, I had the time to take a deep look at the internals of his mysterious code. I rapidly found myself mesmerized by the techniques I discovered. They diverged drastically from Andrew&rsquo;s previous work based on a &ldquo;standard&rdquo; raytracer. It was an interesting experience to learn about ray marching, constructive solid geometry functions, montecarlo\/path tracing rendering, and the many tricks he used to pack everything within such a small area.<\/p><\/blockquote>\n\n<p>Previously: <a href=\"https:\/\/mjtsai.com\/blog\/2013\/09\/24\/business-card-raytracer\/\">Business Card Raytracer<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Fabien Sanglard: This time Andrew produced something a little bit more verbose but with a much more interesting visual result. Since I was done with my Game Engine Black Books about Wolf3D and DOOM, I had the time to take a deep look at the internals of his mysterious code. I rapidly found myself mesmerized [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"2018-12-28T21:42:37Z","apple_news_api_id":"0e46a310-82d6-43f7-bf59-a5c0f429fb0a","apple_news_api_modified_at":"2018-12-28T21:42:39Z","apple_news_api_revision":"AAAAAAAAAAD\/\/\/\/\/\/\/\/\/\/w==","apple_news_api_share_url":"https:\/\/apple.news\/ADkajEILWQ_e_WaXA9Cn7Cg","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[],"tags":[326,619,117,71],"class_list":["post-23792","post","type-post","status-publish","format-standard","hentry","tag-c-plus-plus","tag-graphics","tag-pixar","tag-programming"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/23792","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=23792"}],"version-history":[{"count":1,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/23792\/revisions"}],"predecessor-version":[{"id":23793,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/23792\/revisions\/23793"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=23792"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=23792"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=23792"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}