{"id":554,"date":"2009-06-10T23:44:57","date_gmt":"2009-06-10T13:44:57","guid":{"rendered":"http:\/\/www.vectorstorm.org\/?p=554"},"modified":"2009-06-10T23:44:57","modified_gmt":"2009-06-10T13:44:57","slug":"today","status":"publish","type":"post","link":"https:\/\/www.vectorstorm.com.au\/2009\/06\/10\/today\/","title":{"rendered":"Today"},"content":{"rendered":"<p><a href=\"http:\/\/www.vectorstorm.org\/wp-content\/uploads\/2009\/06\/moreshag.png\"><img loading=\"lazy\" class=\"alignnone size-medium wp-image-553\" title=\"moreshag\" src=\"http:\/\/www.vectorstorm.org\/wp-content\/uploads\/2009\/06\/moreshag-300x195.png\" alt=\"moreshag\" width=\"300\" height=\"195\" srcset=\"https:\/\/www.vectorstorm.com.au\/wp-content\/uploads\/2009\/06\/moreshag-300x195.png 300w, https:\/\/www.vectorstorm.com.au\/wp-content\/uploads\/2009\/06\/moreshag-1024x668.png 1024w, https:\/\/www.vectorstorm.com.au\/wp-content\/uploads\/2009\/06\/moreshag.png 1052w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>A couple of things to talk about today. \u00a0First, I&#8217;ve finally put in some frustum culling functionality. \u00a0Basically, this is some maths to try to determine what objects are vaguely in front of the camera, so that we don&#8217;t spend GPU time drawing things that turn out to be behind the camera. \u00a0 With four square kilometres of terrain being drawn, anything I can avoid drawing is going to help speed things up! \u00a0(Actually in the above shot, we&#8217;re sending less than two square kilometers of terrain to the GPU to be drawn; \u00a0the rest has been determined to be outside of view)<\/p>\n<p>Second, as you may notice in today&#8217;s screenshot, I found a little bug in the terrain drawing which was causing the \u00a0&#8220;shag&#8221; effect to vanish from north-facing and south-facing slopes. \u00a0I also fixed a bug which was sometimes causing the &#8220;shag&#8221; to draw in a subtly incorrect shade. \u00a0Finally, its length now changes based upon the surface. \u00a0I think it looks even better now; \u00a0I&#8217;m quite happy with the effect.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A couple of things to talk about today. \u00a0First, I&#8217;ve finally put in some frustum culling functionality. \u00a0Basically, this is some maths to try to determine what objects are vaguely in front of the camera, so that we don&#8217;t spend GPU time drawing things that turn out to be behind the camera. \u00a0 With four&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[24,25],"tags":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/so9WK-today","_links":{"self":[{"href":"https:\/\/www.vectorstorm.com.au\/wp-json\/wp\/v2\/posts\/554"}],"collection":[{"href":"https:\/\/www.vectorstorm.com.au\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vectorstorm.com.au\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vectorstorm.com.au\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vectorstorm.com.au\/wp-json\/wp\/v2\/comments?post=554"}],"version-history":[{"count":0,"href":"https:\/\/www.vectorstorm.com.au\/wp-json\/wp\/v2\/posts\/554\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vectorstorm.com.au\/wp-json\/wp\/v2\/media?parent=554"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vectorstorm.com.au\/wp-json\/wp\/v2\/categories?post=554"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vectorstorm.com.au\/wp-json\/wp\/v2\/tags?post=554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}