{"id":17590,"date":"2010-04-24T15:37:29","date_gmt":"2010-04-24T14:37:29","guid":{"rendered":"http:\/\/alienbabeltech.com\/main\/?p=17590"},"modified":"2010-04-25T02:46:20","modified_gmt":"2010-04-25T01:46:20","slug":"exclusive-sparse-grid-ssaa-in-opengl-with-the-gtx470gx480","status":"publish","type":"post","link":"http:\/\/alienbabeltech.com\/main\/exclusive-sparse-grid-ssaa-in-opengl-with-the-gtx470gx480\/","title":{"rendered":"Sparse Grid SSAA with the GTX470\/GX480"},"content":{"rendered":"<p align=\"center\"><script type=\"text\/javascript\"><!--\ngoogle_ad_client = \"pub-7021221536180758\";\n\/* 468x60, created 11\/11\/09 *\/\ngoogle_ad_slot = \"1949837292\";\ngoogle_ad_width = 468;\ngoogle_ad_height = 60;\n\/\/-->\n<\/script><br \/>\n<script type=\"text\/javascript\"\nsrc=\"http:\/\/pagead2.googlesyndication.com\/pagead\/show_ads.js\">\n<\/script><\/p>\n<p>The amazing discovery of super-sampling on nVidia\u2019s cards was originally documented <a href=\"http:\/\/www.forum-3dcenter.org\/vbulletin\/showthread.php?t=482088\" onclick=\"_gaq.push(['_trackEvent', 'outbound-article', 'http:\/\/www.forum-3dcenter.org\/vbulletin\/showthread.php?t=482088', 'here']);\" target=\"_blank\">here<\/a>.<\/p>\n<p>Essentially it\u2019s possible to get full scene super-sampling in DX10\/DX11 games (but not DX9 or earlier) on the GTX470\/GTX480 through the use of TrAA (using the super-sampling setting). Instead of super-sampling only transparent textures, the entire scene appears to be anti-aliased. Now rotated and sparse grid super-sampling is possible with nVidia like it is on ATi\u2019s 5xxx parts, but ATi is still restricted to DX9 and OpenGL.<\/p>\n<p>After some quick tinkering, I\u2019ve confirmed this also works with OpenGL games, and you don\u2019t even need Vista or Windows 7!<\/span><\/p>\n<p>Here are some screenshots from a <em>Doom 3<\/em> floor taken on Windows XP on my GTX470. They were taken at 8xQ with TrAA (super-sampling) set to off, 2x, 4x and 8x:<\/p>\n<div id=\"attachment_17596\" style=\"width: 160px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/i2.wp.com\/alienbabeltech.com\/main\/wp-content\/uploads\/2010\/04\/traa-off.png\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-17596\" class=\"size-thumbnail wp-image-17596\" title=\"TrAA Off\" src=\"http:\/\/i2.wp.com\/alienbabeltech.com\/main\/wp-content\/uploads\/2010\/04\/traa-off.png?resize=150%2C150\" alt=\"TrAA Off\" data-recalc-dims=\"1\" \/><\/a><p id=\"caption-attachment-17596\" class=\"wp-caption-text\">TrAA 0x<\/p><\/div> <div id=\"attachment_17593\" style=\"width: 160px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/i1.wp.com\/alienbabeltech.com\/main\/wp-content\/uploads\/2010\/04\/traa-2x.png\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-17593\" class=\"size-thumbnail wp-image-17593\" title=\"TrAA 2x\" src=\"http:\/\/i1.wp.com\/alienbabeltech.com\/main\/wp-content\/uploads\/2010\/04\/traa-2x.png?resize=150%2C150\" alt=\"TrAA 2x\" data-recalc-dims=\"1\" \/><\/a><p id=\"caption-attachment-17593\" class=\"wp-caption-text\">TrAA 2x<\/p><\/div> <div id=\"attachment_17594\" style=\"width: 160px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/i0.wp.com\/alienbabeltech.com\/main\/wp-content\/uploads\/2010\/04\/traa-4x.png\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-17594\" class=\"size-thumbnail wp-image-17594\" title=\"TrAA 4x\" src=\"http:\/\/i0.wp.com\/alienbabeltech.com\/main\/wp-content\/uploads\/2010\/04\/traa-4x.png?resize=150%2C150\" alt=\"TrAA 4x\" data-recalc-dims=\"1\" \/><\/a><p id=\"caption-attachment-17594\" class=\"wp-caption-text\">TrAA 4x<\/p><\/div>\n<div id=\"attachment_17595\" style=\"width: 160px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/i0.wp.com\/alienbabeltech.com\/main\/wp-content\/uploads\/2010\/04\/traa-8x.png\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-17595\" class=\"size-thumbnail wp-image-17595\" title=\"TrAA 8x\" src=\"http:\/\/i0.wp.com\/alienbabeltech.com\/main\/wp-content\/uploads\/2010\/04\/traa-8x.png?resize=150%2C150\" alt=\"TrAA 8x\" data-recalc-dims=\"1\" \/><\/a><p id=\"caption-attachment-17595\" class=\"wp-caption-text\">TrAA 8x<\/p><\/div>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p><strong><\/strong><\/p>\n<p>Clearly the floor is being smoothed because the shader\/lighting aliasing is being reduced. Such a gain in image quality is only possible with full-scene super-sampling.<\/p>\n<p>I\u2019ve tested about half a dozen OpenGL games (including older titles like <em>Call of Duty 1<\/em>, <em>Medal of Honor Allied Assault<\/em>, and <em>Jedi Academy<\/em>), and I can confirm super-sampling is being applied to them.<\/p>\n<p>I actually noticed some bizarre behavior in OpenGL performance when I first started benchmarking my GTX470, but I assumed it was simply because TrAA was working in OpenGL. Well not only was it working, it was anti-aliasing the whole scene, not just alpha textures. But I didn\u2019t make the connection until now.<\/p>\n<p>I\u2019ll cover image quality on my GTX470 in-depth in a future article, but for now this news is quite extraordinary.<\/p>\n<blockquote>\n<p><span style=\"color: #99ccff;\">Please join us in our <a href=\"http:\/\/alienbabeltech.com\/abt\/index.php\" target=\"_blank\">Forums<\/a><\/span><\/p>\n<p><span style=\"color: #99ccff;\">Follow us on <a href=\"http:\/\/twitter.com\/alienbabeltech\" onclick=\"_gaq.push(['_trackEvent', 'outbound-article', 'http:\/\/twitter.com\/alienbabeltech', 'Twitter']);\" target=\"_blank\">Twitter<\/a><\/span><\/p>\n<p><span style=\"color: #99ccff;\">For the latest updates from ABT, please <a href=\"http:\/\/alienbabeltech.com\/main\/?feed=rss2\" target=\"_blank\">join our RSS News Feed<\/a><\/span><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>The amazing discovery of super-sampling on nVidia\u2019s cards was originally documented here. Essentially it\u2019s possible to get full scene super-sampling in DX10\/DX11 games (but not DX9 or earlier) on the GTX470\/GTX480 through the use&#46;&#46;&#46;<\/p>\n","protected":false},"author":5,"featured_media":17596,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2533,7,2535],"tags":[3170,3171,3468,275,243],"class_list":["post-17590","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-abt-news","category-technology","category-web-news","tag-gtx470","tag-gtx480","tag-opengl","tag-super-sampling","tag-xp"],"_links":{"self":[{"href":"http:\/\/alienbabeltech.com\/main\/wp-json\/wp\/v2\/posts\/17590","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/alienbabeltech.com\/main\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/alienbabeltech.com\/main\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/alienbabeltech.com\/main\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"http:\/\/alienbabeltech.com\/main\/wp-json\/wp\/v2\/comments?post=17590"}],"version-history":[{"count":0,"href":"http:\/\/alienbabeltech.com\/main\/wp-json\/wp\/v2\/posts\/17590\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/alienbabeltech.com\/main\/wp-json\/wp\/v2\/media\/17596"}],"wp:attachment":[{"href":"http:\/\/alienbabeltech.com\/main\/wp-json\/wp\/v2\/media?parent=17590"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/alienbabeltech.com\/main\/wp-json\/wp\/v2\/categories?post=17590"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/alienbabeltech.com\/main\/wp-json\/wp\/v2\/tags?post=17590"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}