{"id":7653,"date":"2011-12-27T12:53:51","date_gmt":"2011-12-27T17:53:51","guid":{"rendered":"http:\/\/blog.kenperlin.com\/?p=7653"},"modified":"2011-12-27T12:53:51","modified_gmt":"2011-12-27T17:53:51","slug":"making-things-move-part-6","status":"publish","type":"post","link":"https:\/\/blog.kenperlin.com\/?p=7653","title":{"rendered":"Making things move, part 6"},"content":{"rendered":"<p>Yesterday we showed what happens if you don&#8217;t shape the noise signal &#8212; you get a zombie character.<\/p>\n<p>Today we will apply the high gain filter I talked about two days ago, so that iGor&#8217;s movement will be more purposeful.  I&#8217;m still applying a noise signal to his left\/right rotation as well as to his up\/down rotation, but now I&#8217;m shaping each of those movements with a high gain filter.  You can see the result by clicking on the image below:<\/p>\n<p><center><a href=http:\/\/mrl.nyu.edu\/~perlin\/eyeball3 target=1><img decoding=\"async\" src=\"http:\/\/blog.kenperlin.com\/wp-content\/uploads\/2011\/12\/eyeball3.jpg\"><\/a><\/center><\/p>\n<p>Now iGor appears to be aware of, and interested in, his surroundings.<\/p>\n<p>If I were simulating an actual eyeball, I would move it quite differently.  An eyeball generally saccades to successive fixation points in about 20-30 milliseconds.  That&#8217;s why a real human eye, filmed at 30 frames per second, appears to jump suddenly, in a single frame, from one fixation point to the next.  Because iGor is a character whom the audience thinks of as a hybrid between a head and an eyeball, I needed to slow him down a bit.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Yesterday we showed what happens if you don&#8217;t shape the noise signal &#8212; you get a zombie character. Today we will apply the high gain filter I talked about two days ago, so that iGor&#8217;s movement will be more purposeful. I&#8217;m still applying a noise signal to his left\/right rotation as well as to his &hellip; <a href=\"https:\/\/blog.kenperlin.com\/?p=7653\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Making things move, part 6&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts\/7653"}],"collection":[{"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7653"}],"version-history":[{"count":1,"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts\/7653\/revisions"}],"predecessor-version":[{"id":7655,"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts\/7653\/revisions\/7655"}],"wp:attachment":[{"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7653"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7653"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7653"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}