{"id":29761,"date":"2013-08-21T15:21:25","date_gmt":"2013-08-21T15:21:25","guid":{"rendered":"http:\/\/www.labri.fr\/perso\/barla\/blog\/?p=29761"},"modified":"2019-08-13T18:15:00","modified_gmt":"2019-08-13T18:15:00","slug":"3d-video-transitions","status":"publish","type":"post","link":"https:\/\/www.labri.fr\/perso\/barla\/blog\/?p=29761","title":{"rendered":"!3D video transitions"},"content":{"rendered":"<p id=\"top\" \/>\n<ul>\n<li>Think of a video transition as a 3D volume of potentially varying density embedded in the video cube to be composited in front.<\/li>\n<li>A fade becomes a linear gradient, a cut or swipe is an abrupt transition and changing the shape of the volume permits to control precisely the transition<\/li>\n<li>Points inside the transition volume may then be subject to spatio-temporal deformations that warp pixels around.<\/li>\n<li>Both the 3D shape of the transition and the direction\/magnitude of the warping should be controllable by features of the optical flow.<\/li>\n<li>Various effects could then be designed: objects appearing before\/after their background, changes in timing of different objects during transition, recomposing of motion for seamless blending, etc.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Think of a video transition as a 3D volume of potentially varying density embedded in the video cube to be composited in front. A fade becomes a linear gradient, a cut or swipe is an abrupt transition and changing the shape of the volume permits to control precisely the transition Points inside the transition volume &#8230; <a title=\"!3D video transitions\" class=\"read-more\" href=\"https:\/\/www.labri.fr\/perso\/barla\/blog\/?p=29761\" aria-label=\"Read more about !3D video transitions\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[681],"tags":[],"class_list":["post-29761","post","type-post","status-publish","format-standard","hentry","category-anims"],"_links":{"self":[{"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/posts\/29761","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=29761"}],"version-history":[{"count":5,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/posts\/29761\/revisions"}],"predecessor-version":[{"id":40086,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/posts\/29761\/revisions\/40086"}],"wp:attachment":[{"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=29761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}