{"id":297,"date":"2012-07-02T09:29:04","date_gmt":"2012-07-02T09:29:04","guid":{"rendered":"http:\/\/lousodrome.net\/blog\/light\/?p=297"},"modified":"2012-07-02T09:30:00","modified_gmt":"2012-07-02T09:30:00","slug":"octree-based-sparse-voxelization-for-real-time-global-illumination","status":"publish","type":"post","link":"http:\/\/lousodrome.net\/blog\/light\/2012\/07\/02\/octree-based-sparse-voxelization-for-real-time-global-illumination\/","title":{"rendered":"Octree-Based Sparse Voxelization for Real-Time Global Illumination"},"content":{"rendered":"<p>Last year Cyril Crassin presented a <a href=\"http:\/\/blog.icare3d.org\/2011\/06\/interactive-indirect-illumination-and.html\">voxel based approach for interactively computing indirect diffuse and specular lighting<\/a>, along with a couple of demonstration videos, and kept working on the matter since then.<\/p>\n<p><iframe loading=\"lazy\" src=\"http:\/\/www.youtube.com\/embed\/fAsg_xNzhcQ?rel=0\" frameborder=\"0\" width=\"500\" height=\"375\"><\/iframe><\/p>\n<p>In <a href=\"http:\/\/www.gputechconf.com\/gtcnew\/on-demand-gtc.php?sessionTopic=&#038;searchByKeyword=&#038;submit=&#038;select=+&#038;sessionEvent=&#038;sessionYear=&#038;sessionFormat=#1465\">this talk given in May at the NVIDIA GPU Technology Conference<\/a>, he briefly explains the technique:<\/p>\n<p><iframe loading=\"lazy\" name=\"wistia_embed\" src=\"http:\/\/fast.wistia.com\/embed\/iframe\/01fbfa6b80\" frameborder=\"0\" scrolling=\"no\" width=\"500\" height=\"303\"><\/iframe><\/p>\n<p>Interestingly enough, <a href=\"http:\/\/blog.icare3d.org\/2012\/06\/unreal-engine-4-demo-with-real-time-gi.html\">as he points out<\/a>, the technique has been implemented in the Unreal Engine 4 already.<\/p>\n<p><iframe loading=\"lazy\" src=\"http:\/\/www.youtube.com\/embed\/MOvfn1p92_8?rel=0\" frameborder=\"0\" width=\"500\" height=\"281\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Last year Cyril Crassin presented a voxel based approach for interactively computing indirect diffuse and specular lighting, along with a couple of demonstration videos, and kept working on the matter since then. In this talk given in May at the &hellip; <a href=\"http:\/\/lousodrome.net\/blog\/light\/2012\/07\/02\/octree-based-sparse-voxelization-for-real-time-global-illumination\/\">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":[74,163,58,125,34,57,149,162],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.13 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Octree-Based Sparse Voxelization for Real-Time Global Illumination &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\/2012\/07\/02\/octree-based-sparse-voxelization-for-real-time-global-illumination\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Octree-Based Sparse Voxelization for Real-Time Global Illumination &ndash; Light is beautiful\" \/>\n<meta property=\"og:description\" content=\"Last year Cyril Crassin presented a voxel based approach for interactively computing indirect diffuse and specular lighting, along with a couple of demonstration videos, and kept working on the matter since then. In this talk given in May at the &hellip; Continue reading &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lousodrome.net\/blog\/light\/2012\/07\/02\/octree-based-sparse-voxelization-for-real-time-global-illumination\/\" \/>\n<meta property=\"og:site_name\" content=\"Light is beautiful\" \/>\n<meta property=\"article:published_time\" content=\"2012-07-02T09:29:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2012-07-02T09:30:00+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\/2012\/07\/02\/octree-based-sparse-voxelization-for-real-time-global-illumination\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/2012\/07\/02\/octree-based-sparse-voxelization-for-real-time-global-illumination\/\"},\"author\":{\"name\":\"Julien Guertault\",\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/#\/schema\/person\/a16a2a69d73eca763ffdf125c49eaa2f\"},\"headline\":\"Octree-Based Sparse Voxelization for Real-Time Global Illumination\",\"datePublished\":\"2012-07-02T09:29:04+00:00\",\"dateModified\":\"2012-07-02T09:30:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/2012\/07\/02\/octree-based-sparse-voxelization-for-real-time-global-illumination\/\"},\"wordCount\":72,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/#\/schema\/person\/a16a2a69d73eca763ffdf125c49eaa2f\"},\"keywords\":[\"ambient occlusion\",\"cone tracing\",\"diffuse\",\"global illumination\",\"real-time rendering\",\"specular\",\"talk\",\"voxel\"],\"articleSection\":[\"Rendering\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/lousodrome.net\/blog\/light\/2012\/07\/02\/octree-based-sparse-voxelization-for-real-time-global-illumination\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/2012\/07\/02\/octree-based-sparse-voxelization-for-real-time-global-illumination\/\",\"url\":\"https:\/\/lousodrome.net\/blog\/light\/2012\/07\/02\/octree-based-sparse-voxelization-for-real-time-global-illumination\/\",\"name\":\"Octree-Based Sparse Voxelization for Real-Time Global Illumination &ndash; 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