{"id":65,"date":"2006-08-06T20:07:03","date_gmt":"2006-08-06T19:07:03","guid":{"rendered":"http:\/\/www.ozone3d.net\/blogs\/lab\/?p=65"},"modified":"2009-07-22T17:04:58","modified_gmt":"2009-07-22T16:04:58","slug":"ati-and-depth-map-filtering","status":"publish","type":"post","link":"https:\/\/www.ozone3d.net\/blogs\/lab\/20060806\/ati-and-depth-map-filtering\/","title":{"rendered":"ATI and Depth Map Filtering"},"content":{"rendered":"<p>I&#8217;ve just found in the super paper of ATI, called &#8220;ATI OpenGL Programming and Optimization Guide&#8221; that <b>all ATI GPUs from the R300 (Radeon 9700) to the latest R580 (Radeon X1900) only support NEAREST (and the mipmap version) filtering for depth map<\/b>. That explains the previous results. So if you want a nVidia-like depth map filtering, you have to code the filtering yourself in the pixel shader. Okay, this answer suits me!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;ve just found in the super paper of ATI, called &#8220;ATI OpenGL Programming and Optimization Guide&#8221; that all ATI GPUs from the R300 (Radeon 9700) to the latest R580 (Radeon X1900) only support NEAREST (and the mipmap version) filtering for depth map. That explains the previous results. So if you want a nVidia-like depth map filtering, you have to code the filtering yourself in the &hellip; <a href=\"https:\/\/www.ozone3d.net\/blogs\/lab\/20060806\/ati-and-depth-map-filtering\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">ATI and Depth Map Filtering<\/span> <span class=\"meta-nav\">&raquo;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[22,202,203,638,23],"class_list":["post-65","post","type-post","status-publish","format-standard","hentry","category-opengl","tag-ati","tag-depth-map","tag-filtering","tag-opengl","tag-radeon"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"I&#039;ve just found in the super paper of ATI, called &quot;ATI OpenGL Programming and Optimization Guide&quot; that all ATI GPUs from the R300 (Radeon 9700) to the latest R580 (Radeon X1900) only support NEAREST (and the mipmap version) filtering for depth map. That explains the previous results. So if you want a nVidia-like depth map\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"JeGX\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.ozone3d.net\/blogs\/lab\/20060806\/ati-and-depth-map-filtering\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.0.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"JeGX&#039;s Lab | News en vrac \/ WP sandbox\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"ATI and Depth Map Filtering | JeGX&#039;s Lab\" \/>\n\t\t<meta property=\"og:description\" content=\"I&#039;ve just found in the super paper of ATI, called &quot;ATI OpenGL Programming and Optimization Guide&quot; that all ATI GPUs from the R300 (Radeon 9700) to the latest R580 (Radeon X1900) only support NEAREST (and the mipmap version) filtering for depth map. That explains the previous results. So if you want a nVidia-like depth map\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/www.ozone3d.net\/blogs\/lab\/20060806\/ati-and-depth-map-filtering\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2006-08-06T19:07:03+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2009-07-22T16:04:58+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary\" \/>\n\t\t<meta name=\"twitter:title\" content=\"ATI and Depth Map Filtering | JeGX&#039;s Lab\" \/>\n\t\t<meta name=\"twitter:description\" content=\"I&#039;ve just found in the super paper of ATI, called &quot;ATI OpenGL Programming and Optimization Guide&quot; that all ATI GPUs from the R300 (Radeon 9700) to the latest R580 (Radeon X1900) only support NEAREST (and the mipmap version) filtering for depth map. That explains the previous results. So if you want a nVidia-like depth map\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/20060806\\\/ati-and-depth-map-filtering\\\/#article\",\"name\":\"ATI and Depth Map Filtering | JeGX's Lab\",\"headline\":\"ATI and Depth Map Filtering\",\"author\":{\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/author\\\/jegx\\\/#author\"},\"publisher\":{\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/#person\"},\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/20060806\\\/ati-and-depth-map-filtering\\\/#articleImage\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/84ced5670773799817f2f791816e1124fc739962b2fd55c366a685887c8287cd?s=96&d=mm&r=g\",\"width\":96,\"height\":96,\"caption\":\"JeGX\"},\"datePublished\":\"2006-08-06T20:07:03+01:00\",\"dateModified\":\"2009-07-22T17:04:58+01:00\",\"inLanguage\":\"en-US\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/20060806\\\/ati-and-depth-map-filtering\\\/#webpage\"},\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/20060806\\\/ati-and-depth-map-filtering\\\/#webpage\"},\"articleSection\":\"OpenGL, ati, depth map, filtering, OpenGL, radeon\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/20060806\\\/ati-and-depth-map-filtering\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/category\\\/opengl\\\/#listItem\",\"name\":\"OpenGL\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/category\\\/opengl\\\/#listItem\",\"position\":2,\"name\":\"OpenGL\",\"item\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/category\\\/opengl\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/20060806\\\/ati-and-depth-map-filtering\\\/#listItem\",\"name\":\"ATI and Depth Map Filtering\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/20060806\\\/ati-and-depth-map-filtering\\\/#listItem\",\"position\":3,\"name\":\"ATI and Depth Map Filtering\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/category\\\/opengl\\\/#listItem\",\"name\":\"OpenGL\"}}]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/#person\",\"name\":\"JeGX\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/author\\\/jegx\\\/#author\",\"url\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/author\\\/jegx\\\/\",\"name\":\"JeGX\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/20060806\\\/ati-and-depth-map-filtering\\\/#authorImage\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/84ced5670773799817f2f791816e1124fc739962b2fd55c366a685887c8287cd?s=96&d=mm&r=g\",\"width\":96,\"height\":96,\"caption\":\"JeGX\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/20060806\\\/ati-and-depth-map-filtering\\\/#webpage\",\"url\":\"https:\\\/\\\/www.ozone3d.net\\\/blogs\\\/lab\\\/20060806\\\/ati-and-depth-map-filtering\\\/\",\"name\":\"ATI and Depth Map Filtering | JeGX's Lab\",\"description\":\"I've just found in the super paper of ATI, called \\\"ATI OpenGL Programming and Optimization Guide\\\" that all ATI GPUs from the R300 (Radeon 9700) to the latest R580 (Radeon X1900) only support NEAREST (and the mipmap version) filtering for depth map. 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So if you want a nVidia-like depth map"},"aioseo_meta_data":{"post_id":"65","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"Article","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"ai":null,"created":"2021-03-08 08:09:22","updated":"2025-11-24 12:15:37","focus_keyword":null,"additional_keywords":null,"truseo_locale":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.ozone3d.net\/blogs\/lab\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.ozone3d.net\/blogs\/lab\/category\/opengl\/\" title=\"OpenGL\">OpenGL<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tATI and Depth Map Filtering\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/www.ozone3d.net\/blogs\/lab"},{"label":"OpenGL","link":"https:\/\/www.ozone3d.net\/blogs\/lab\/category\/opengl\/"},{"label":"ATI and Depth Map Filtering","link":"https:\/\/www.ozone3d.net\/blogs\/lab\/20060806\/ati-and-depth-map-filtering\/"}],"views":440,"_links":{"self":[{"href":"https:\/\/www.ozone3d.net\/blogs\/lab\/wp-json\/wp\/v2\/posts\/65","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ozone3d.net\/blogs\/lab\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ozone3d.net\/blogs\/lab\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ozone3d.net\/blogs\/lab\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ozone3d.net\/blogs\/lab\/wp-json\/wp\/v2\/comments?post=65"}],"version-history":[{"count":0,"href":"https:\/\/www.ozone3d.net\/blogs\/lab\/wp-json\/wp\/v2\/posts\/65\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ozone3d.net\/blogs\/lab\/wp-json\/wp\/v2\/media?parent=65"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ozone3d.net\/blogs\/lab\/wp-json\/wp\/v2\/categories?post=65"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ozone3d.net\/blogs\/lab\/wp-json\/wp\/v2\/tags?post=65"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}