{"id":800,"date":"2013-12-02T13:11:57","date_gmt":"2013-12-02T13:11:57","guid":{"rendered":"http:\/\/lousodrome.net\/blog\/light\/?p=800"},"modified":"2013-12-02T13:11:57","modified_gmt":"2013-12-02T13:11:57","slug":"john-carmack-on-physically-based-rendering-at-quakecon-2013","status":"publish","type":"post","link":"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/john-carmack-on-physically-based-rendering-at-quakecon-2013\/","title":{"rendered":"John Carmack on physically based rendering at QuakeCon 2013"},"content":{"rendered":"<p>In this (slightly over) one hour talk, 1\u00bd hour including Q&amp;A, John Carmack walks through the physics of light, the early days of rendering, the current state of the art, and the direction it is headed at. In short: until we can afford path tracing, we&#8217;re approximating it.<\/p>\n<p><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/P6UKhR0T6cs\" height=\"281\" width=\"500\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this (slightly over) one hour talk, 1\u00bd hour including Q&amp;A, John Carmack walks through the physics of light, the early days of rendering, the current state of the art, and the direction it is headed at. In short: until &hellip; <a href=\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/john-carmack-on-physically-based-rendering-at-quakecon-2013\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[17],"tags":[74,125,185,127,63,503,502,149],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.13 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>John Carmack on physically based rendering at QuakeCon 2013 &ndash; Light is beautiful<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/john-carmack-on-physically-based-rendering-at-quakecon-2013\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"John Carmack on physically based rendering at QuakeCon 2013 &ndash; Light is beautiful\" \/>\n<meta property=\"og:description\" content=\"In this (slightly over) one hour talk, 1\u00bd hour including Q&amp;A, John Carmack walks through the physics of light, the early days of rendering, the current state of the art, and the direction it is headed at. In short: until &hellip; Continue reading &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/john-carmack-on-physically-based-rendering-at-quakecon-2013\/\" \/>\n<meta property=\"og:site_name\" content=\"Light is beautiful\" \/>\n<meta property=\"article:published_time\" content=\"2013-12-02T13:11:57+00:00\" \/>\n<meta name=\"author\" content=\"Julien Guertault\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Zavie\" \/>\n<meta name=\"twitter:site\" content=\"@Zavie\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Julien Guertault\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/john-carmack-on-physically-based-rendering-at-quakecon-2013\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/john-carmack-on-physically-based-rendering-at-quakecon-2013\/\"},\"author\":{\"name\":\"Julien Guertault\",\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/#\/schema\/person\/a16a2a69d73eca763ffdf125c49eaa2f\"},\"headline\":\"John Carmack on physically based rendering at QuakeCon 2013\",\"datePublished\":\"2013-12-02T13:11:57+00:00\",\"dateModified\":\"2013-12-02T13:11:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/john-carmack-on-physically-based-rendering-at-quakecon-2013\/\"},\"wordCount\":57,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/#\/schema\/person\/a16a2a69d73eca763ffdf125c49eaa2f\"},\"keywords\":[\"ambient occlusion\",\"global illumination\",\"path tracing\",\"photon mapping\",\"physically based rendering\",\"QuakeCon\",\"radiosity\",\"talk\"],\"articleSection\":[\"Rendering\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/john-carmack-on-physically-based-rendering-at-quakecon-2013\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/john-carmack-on-physically-based-rendering-at-quakecon-2013\/\",\"url\":\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/john-carmack-on-physically-based-rendering-at-quakecon-2013\/\",\"name\":\"John Carmack on physically based rendering at QuakeCon 2013 &ndash; 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