{"id":396,"date":"2018-04-25T07:51:12","date_gmt":"2018-04-25T12:51:12","guid":{"rendered":"https:\/\/drmad.org\/blog\/?p=396"},"modified":"2019-09-08T12:45:38","modified_gmt":"2019-09-08T17:45:38","slug":"invitacion-al-flisol-2018-estilo-demoscene","status":"publish","type":"post","link":"https:\/\/drmad.org\/blog\/invitacion-al-flisol-2018-estilo-demoscene.html","title":{"rendered":"Invitaci\u00f3n al FLISoL 2018, estilo #demoscene"},"content":{"rendered":"<p>Este fue un \u00abpendiente\u00bb que ten\u00eda desde hace m\u00e1s de 15 a\u00f1os \ud83d\ude06 \u00a1Mi primera <i>demoscene invitation <\/i><i>intro<\/i>!<\/p>\n<p>Y puedes descargarlo desde <a href=\"https:\/\/icanux.org\/flisol\">https:\/\/icanux.org\/flisol<\/a> \ud83d\ude0e Corre en Linux 64 bits, y requiere <code>libsdl2<\/code>, <code>libsdl2_image<\/code> y <code>libmikmod<\/code>.<\/p>\n<p><iframe loading=\"lazy\" title=\"Invitaci\u00f3n al FLISoL 2018 - Sede Ica, Per\u00fa [HD]\" width=\"810\" height=\"456\" src=\"https:\/\/www.youtube.com\/embed\/iR7bsbL-ZmY?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>Ya he estado probando hacer efectos <em>demoscene<\/em> en el <a href=\"https:\/\/drmad.org\/blog\/rotozoomer-en-raspberry-pi-b.html\">Raspberry Pi<\/a>, por que es un equipo lento, con los mismos retos de anta\u00f1o. Y ya que por varios a\u00f1os he <a href=\"https:\/\/youtu.be\/vE7nuXIg3Tc\">hecho<\/a> <a href=\"https:\/\/youtu.be\/5tkq64ppqIk\">v\u00eddeos<\/a> de <a href=\"https:\/\/youtu.be\/f87UW0pEd_E\">invitaci\u00f3n<\/a> al <a href=\"https:\/\/flisol.info\/\">FLISoL<\/a> organizado por <a href=\"https:\/\/icanux.org\">Icanux<\/a>, usando <a href=\"https:\/\/blender.org\">Blender<\/a> y otras herramientas libres, pens\u00e9 retornar a la faena con algo distinto \ud83d\ude00<\/p>\n<p>Hice esta intro en <a href=\"https:\/\/es.m.wikipedia.org\/wiki\/C_(lenguaje_de_programaci%C3%B3n)\">C<\/a>, usando <a href=\"https:\/\/youtu.be\/f87UW0pEd_E\">SDL<\/a> y <a href=\"http:\/\/mikmod.sourceforge.net\/\">libmikmod<\/a>. Cada efecto es una funci\u00f3n que a\u00f1ade im\u00e1genes al \u00ab<i>canvas<\/i>\u00bb global, una textura que luego se enviar\u00e1 a la pantalla. Cada funci\u00f3n es llamada desde el bucle principal, donde orquesto qu\u00e9 efecto debe ser dibujado, y en qu\u00e9 momento.<\/p>\n<p><code>libmikmod<\/code> se encarga de tocar la excelente m\u00fasica, un <a href=\"https:\/\/modarchive.org\/index.php?request=view_by_moduleid&amp;query=136815\">remix<\/a> del \u00ab<a href=\"https:\/\/youtu.be\/G1AeBgalFZk\">Robocop 3<\/a>\u00bb de <a href=\"https:\/\/es.m.wikipedia.org\/wiki\/Jeroen_Tel\">Jeroen Tel<\/a>, compuesto por Alien.<\/p>\n<p>Para las letras, hice un script en <a href=\"https:\/\/www.python.org\">Python<\/a> que cree una im\u00e1gen con todas las letras, y cree un fichero <code>.h<\/code> con un array de <code>struct<\/code>s donde guardo el c\u00f3digo de la letra, su posici\u00f3n en la textura, y su ancho.<\/p>\n<p>Todas las im\u00e1genes, y la m\u00fasica, est\u00e1n agrupadas en un \u00fanico fichero \u00abpachamanca\u00bb \ud83d\ude06, que cre\u00e9 con otro script en <a href=\"https:\/\/www.python.org\">Python<\/a>, similar a las letras.<\/p>\n<figure id=\"attachment_432\" aria-describedby=\"caption-attachment-432\" style=\"width: 810px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/i0.wp.com\/drmad.org\/blog\/wp-content\/uploads\/2018\/04\/IMG_20180413_211514.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"432\" data-permalink=\"https:\/\/drmad.org\/blog\/invitacion-al-flisol-2018-estilo-demoscene.html\/dav\" data-orig-file=\"https:\/\/i0.wp.com\/drmad.org\/blog\/wp-content\/uploads\/2018\/04\/IMG_20180413_211514.jpg?fit=4608%2C2304&amp;ssl=1\" data-orig-size=\"4608,2304\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.2&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;RNE-L03&quot;,&quot;caption&quot;:&quot;dav&quot;,&quot;created_timestamp&quot;:&quot;1523654114&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;3.81&quot;,&quot;iso&quot;:&quot;800&quot;,&quot;shutter_speed&quot;:&quot;0.058333&quot;,&quot;title&quot;:&quot;dav&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"hola_mundo\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/drmad.org\/blog\/wp-content\/uploads\/2018\/04\/IMG_20180413_211514.jpg?fit=300%2C150&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/drmad.org\/blog\/wp-content\/uploads\/2018\/04\/IMG_20180413_211514.jpg?fit=810%2C405&amp;ssl=1\" class=\"wp-image-432 size-large\" src=\"https:\/\/i0.wp.com\/drmad.org\/blog\/wp-content\/uploads\/2018\/04\/IMG_20180413_211514.jpg?resize=810%2C405&#038;ssl=1\" alt=\"\" width=\"810\" height=\"405\" srcset=\"https:\/\/i0.wp.com\/drmad.org\/blog\/wp-content\/uploads\/2018\/04\/IMG_20180413_211514.jpg?resize=1024%2C512&amp;ssl=1 1024w, https:\/\/i0.wp.com\/drmad.org\/blog\/wp-content\/uploads\/2018\/04\/IMG_20180413_211514.jpg?resize=300%2C150&amp;ssl=1 300w, https:\/\/i0.wp.com\/drmad.org\/blog\/wp-content\/uploads\/2018\/04\/IMG_20180413_211514.jpg?resize=768%2C384&amp;ssl=1 768w, https:\/\/i0.wp.com\/drmad.org\/blog\/wp-content\/uploads\/2018\/04\/IMG_20180413_211514.jpg?w=1620&amp;ssl=1 1620w, https:\/\/i0.wp.com\/drmad.org\/blog\/wp-content\/uploads\/2018\/04\/IMG_20180413_211514.jpg?w=2430&amp;ssl=1 2430w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/a><figcaption id=\"caption-attachment-432\" class=\"wp-caption-text\">Mi primer intento de \u00aboverlay\u00bb: La fuente sobre el starfield.<\/figcaption><\/figure>\n<p>Han sido varios d\u00edas de trasnochada muy interesantes \ud83d\ude06 La siguiente invitaci\u00f3n la har\u00e9 con OpenGL<span class=\"emoji\">\ud83d\ude0e<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Este fue un \u00abpendiente\u00bb que ten\u00eda desde hace m\u00e1s de 15 a\u00f1os \ud83d\ude06 \u00a1Mi primera demoscene invitation intro! Y puedes<\/p>\n","protected":false},"author":1,"featured_media":403,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[26,25,6,10],"tags":[],"class_list":["post-396","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-c","category-demoscene","category-linux","category-programacion"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/drmad.org\/blog\/wp-content\/uploads\/2018\/04\/invitacion-flisol-2018.jpg?fit=1920%2C541&ssl=1","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6p3z1-6o","jetpack-related-posts":[],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/drmad.org\/blog\/wp-json\/wp\/v2\/posts\/396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/drmad.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/drmad.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/drmad.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/drmad.org\/blog\/wp-json\/wp\/v2\/comments?post=396"}],"version-history":[{"count":12,"href":"https:\/\/drmad.org\/blog\/wp-json\/wp\/v2\/posts\/396\/revisions"}],"predecessor-version":[{"id":653,"href":"https:\/\/drmad.org\/blog\/wp-json\/wp\/v2\/posts\/396\/revisions\/653"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/drmad.org\/blog\/wp-json\/wp\/v2\/media\/403"}],"wp:attachment":[{"href":"https:\/\/drmad.org\/blog\/wp-json\/wp\/v2\/media?parent=396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/drmad.org\/blog\/wp-json\/wp\/v2\/categories?post=396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/drmad.org\/blog\/wp-json\/wp\/v2\/tags?post=396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}