{"id":791,"date":"2010-11-12T09:35:09","date_gmt":"2010-11-12T09:35:09","guid":{"rendered":"http:\/\/blendipel.wordpress.com\/?p=791"},"modified":"2012-09-08T14:22:43","modified_gmt":"2012-09-08T14:22:43","slug":"buy-new-fish-food","status":"publish","type":"post","link":"http:\/\/artificialflight.org\/blender\/2010\/buy-new-fish-food\/","title":{"rendered":"Buy New Fish Food"},"content":{"rendered":"<p><a href=\"http:\/\/artificialflight.org\/blender\/files\/2010\/11\/starfish_compo_004_gimp2_10242.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1317\" title=\"Starfish \" src=\"http:\/\/artificialflight.org\/blender\/files\/2010\/11\/starfish_compo_004_gimp2_10242.jpg\" alt=\"Starfish Blender\" width=\"640\" height=\"1024\" srcset=\"http:\/\/artificialflight.org\/blender\/files\/2010\/11\/starfish_compo_004_gimp2_10242.jpg 640w, http:\/\/artificialflight.org\/blender\/files\/2010\/11\/starfish_compo_004_gimp2_10242-262x420.jpg 262w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>I just finished the scene for the Starfish I did some time ago to show the possibilities of\u00a0<a href=\"http:\/\/blendipel.wordpress.com\/2009\/07\/24\/material-nodes-demonstration-scene\/\" target=\"_blank\">Material Nodes in Blender<\/a>. Rendertime was horrible (&gt; 30 hours, I can&#8217;t give any exact number because I paused the render a few times to work on my windows partition which confuses the render-time counter of Blender). Simple reason: Node-Material with about 5 different materials on a glossy reflection surface with about 20 passes, giving about 20\u00d75 reflections per pixel to compute (most of them with SSS).<\/p>\n<p>In this case, the workflow was:<\/p>\n<ul>\n<li>Render to multilayer exr<\/li>\n<li>Load result into new blender-file only for compositing<\/li>\n<li>Composite basics (depth of field, gamma curve, saturation)<\/li>\n<li>Try some changes for parts of the image in Gimp<\/li>\n<li>Export manipulation masks from Gimp<\/li>\n<li>Imitate Gimp-manipulation inside the Blender compositor using the masks from Gimp<\/li>\n<li>Compute final composition (takes some minutes with the heavy dof)<\/li>\n<li>Postwork in Gimp (e.g. wet paper after a hint from the forum, hand-antialiasing on important edges (full sample is not possible here, so rendering at 1,5x the size, scaling down and then hand-antialiasing is the method of choice))<\/li>\n<\/ul>\n<p>And if someone is interested, a commented Node-setup:<\/p>\n<figure id=\"attachment_795\" aria-describedby=\"caption-attachment-795\" style=\"width: 350px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/artificialflight.org\/blender\/files\/2010\/11\/composition-screenshot.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-795\" src=\"http:\/\/artificialflight.org\/blender\/files\/2010\/11\/composition-screenshot.png?w=350\" alt=\"\" width=\"350\" height=\"89\" srcset=\"http:\/\/artificialflight.org\/blender\/files\/2010\/11\/composition-screenshot.png 3511w, http:\/\/artificialflight.org\/blender\/files\/2010\/11\/composition-screenshot-420x106.png 420w, http:\/\/artificialflight.org\/blender\/files\/2010\/11\/composition-screenshot-640x162.png 640w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><\/a><figcaption id=\"caption-attachment-795\" class=\"wp-caption-text\">Compo-Nodes with comments<\/figcaption><\/figure>\n<p style=\"text-align: center;\">\n","protected":false},"excerpt":{"rendered":"<p>I just finished the scene for the Starfish I did some time ago to show&#8230;<\/p>\n<div class=\"more-link-wrapper\"><a class=\"more-link\" href=\"http:\/\/artificialflight.org\/blender\/2010\/buy-new-fish-food\/\">Read the post<span class=\"screen-reader-text\">Buy New Fish Food<\/span><\/a><\/div>\n","protected":false},"author":1,"featured_media":793,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[13,14,15],"tags":[188,50,61,189,95,106,145],"class_list":["post-791","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blender","category-finished","category-gimp-software","tag-blender","tag-buy-new-fish-food","tag-compositing","tag-finished","tag-internal","tag-material-nodes","tag-starfish","excerpt","zoom","full-without-featured","even","excerpt-0"],"yoast_head":"<!-- This site is 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