{"id":2292,"date":"2021-11-07T23:59:05","date_gmt":"2021-11-07T23:59:05","guid":{"rendered":"https:\/\/baselunaire.fr\/?p=2292"},"modified":"2021-11-10T00:34:30","modified_gmt":"2021-11-10T00:34:30","slug":"shady-023","status":"publish","type":"post","link":"https:\/\/baselunaire.fr\/?p=2292","title":{"rendered":"Shady #023"},"content":{"rendered":"<p>Le <em>shader<\/em> du jour, <strong>Portal 1<\/strong>, est un truc assez bizarre. Un genre de \u00ab\u00a0mise en ab\u00eeme\u00a0\u00bb impossible, toute en 3D avec la qualit\u00e9 de rendu qui va bien.<\/p>\n<p>&nbsp;<\/p>\n<p><iframe loading=\"lazy\" width=\"640\" height=\"360\" frameborder=\"0\" src=\"https:\/\/www.shadertoy.com\/embed\/tl3GW2?gui=true&#038;t=10&#038;paused=true&#038;muted=false\" allowfullscreen><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<p>C&rsquo;est assez indescriptible, en fait : il y a un truc qui cloche, mais quoi ?! L\u2019\u0153il cherche une brisure de sym\u00e9trie, une jointure mal dissimul\u00e9e, un d\u00e9tail pas-glop, un indice, n&rsquo;importe quoi. Mais tout est bien raccord. On a l&rsquo;impression de se trouver face \u00e0 une illustration d&rsquo;Escher, mais anim\u00e9e, avec option \u00ab\u00a0portail interdimensionnel d\u00e9bordant du cadre\u00a0\u00bb.<br \/>\nL&rsquo;auteur, <strong>tmst<\/strong>, parle d&rsquo;un \u00ab\u00a0effet Droste-Escher basique\u00a0\u00bb ?! Un tour rapide sur Wikip&rsquo; (<a href=\"https:\/\/fr.wikipedia.org\/wiki\/Effet_Droste\" rel=\"noopener\" target=\"_blank\">effet Droste<\/a>) nous renseigne un peu. &#8230; Un peu, mais gu\u00e8re ! Et le code lui-m\u00eame est \u00e0 peine plus explicite (aaaaargh). \ud83d\ude00<\/p>\n<p>Quoiqu&rsquo;il en soit, c&rsquo;est un autre moment de vertige et de culture gr\u00e2ce \u00e0 la magie des maths&#8230; et des <em>shaders<\/em>. De la pure prestidigitation logicielle.<br \/>\nAlors on applaudit l&rsquo;auteur, et \u00e0 la semaine prochaine&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le shader du jour, Portal 1, est un truc assez bizarre. Un genre de \u00ab\u00a0mise en ab\u00eeme\u00a0\u00bb impossible, toute en 3D avec la qualit\u00e9 de rendu qui va bien. &nbsp; &nbsp; C&rsquo;est assez indescriptible, en fait : il y a &hellip; <a href=\"https:\/\/baselunaire.fr\/?p=2292\">Continuer la lecture <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-2292","post","type-post","status-publish","format-standard","hentry","category-shady"],"_links":{"self":[{"href":"https:\/\/baselunaire.fr\/index.php?rest_route=\/wp\/v2\/posts\/2292","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/baselunaire.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/baselunaire.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/baselunaire.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/baselunaire.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2292"}],"version-history":[{"count":4,"href":"https:\/\/baselunaire.fr\/index.php?rest_route=\/wp\/v2\/posts\/2292\/revisions"}],"predecessor-version":[{"id":2296,"href":"https:\/\/baselunaire.fr\/index.php?rest_route=\/wp\/v2\/posts\/2292\/revisions\/2296"}],"wp:attachment":[{"href":"https:\/\/baselunaire.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2292"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/baselunaire.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2292"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/baselunaire.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2292"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}