{"id":3609,"date":"2014-04-30T15:51:46","date_gmt":"2014-04-30T13:51:46","guid":{"rendered":"http:\/\/www.book.artbeeweb.nl\/?p=3609"},"modified":"2014-05-08T15:16:57","modified_gmt":"2014-05-08T13:16:57","slug":"whats-the-specular-phong-node-used-for","status":"publish","type":"post","link":"http:\/\/www.book.artbeeweb.nl\/?p=3609","title":{"rendered":"What\u2019s the Specular > Phong node used for?"},"content":{"rendered":"<p>Nodes are the essential building blocks in the Advanced interface to the Poser Material Room. They are the graphical representation of mathematical function calls, that is: calculation procedures which turn parameters (inputs) to a result (output).<\/p>\n<p><strong>Intermediate<\/strong><\/p>\n<p>All nodes in the Specular group respond to specular light, which refers to specular light from direct (point- spot- infinite) sources only. The <a title=\"click for details\" href=\"\/?p=3597\">regular \u2018specular\u2019 node itself<\/a>, either separate or embedded in the PoserSurface definition directly is fast to calculate, but falls short for a neat illusion of about any real stuff except hard plastic.<\/p>\n<p>This is why Poser offers alternatives, like <a title=\"click for details\" href=\"\/?p=3599\">Blinn<\/a>, or <a title=\"click for details\" href=\"\/?p=3603\">Anisotropic<\/a> for microscopically grooved surfaces. Phong is considered completely outdated.<\/p>\n<p>Some background<\/p>\n<p>B.T. Phong introduced (in 1973) a method to make neat highlights and smooth surfaces out of a surface which consisted of small flat elements, as our 3D objects do.<br \/>\n<img decoding=\"async\" src=\"http:\/\/www.book.artbeeweb.nl\/wp-content\/gallery\/postpmra\/PMRA.49.01.jpg\" alt=\"\"  \/><br \/>\nAs his method was improved by Blinn, and as the results in Poser hardly differ from the regular specularity (left pawn, vs right pawn showing Phong):<br \/>\n<img decoding=\"async\" src=\"http:\/\/www.book.artbeeweb.nl\/wp-content\/gallery\/postpmra\/PMRA.49.02.jpg\" alt=\"\" width=\"800\"  \/><\/p>\n<p>the method \u2013 and the node \u2013 can be considered outdated. The parameters have the same meaning as the Specular ones.<br \/>\n<img decoding=\"async\" src=\"http:\/\/www.book.artbeeweb.nl\/wp-content\/gallery\/postpmra\/PMRA.49.03.jpg\" alt=\"\"   \/><\/p>\n<p style=\"text-align: right;\"><a href=\"\/?p=3611\">Next &gt;<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nodes are the essential building blocks in the Advanced interface to the Poser Material Room. They are the graphical representation of mathematical function calls, that is: calculation procedures which turn parameters (inputs) to a result (output). Intermediate All nodes in the Specular group respond to specular light, which refers to specular light from direct (point- &hellip; <a href=\"http:\/\/www.book.artbeeweb.nl\/?p=3609\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;What\u2019s the Specular > Phong node used for?&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[5],"tags":[145,133],"series":[127],"class_list":["post-3609","post","type-post","status-publish","format-standard","hentry","category-poser","tag-material-room","tag-poser","series-matroom-intermediate"],"_links":{"self":[{"href":"http:\/\/www.book.artbeeweb.nl\/index.php?rest_route=\/wp\/v2\/posts\/3609","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.book.artbeeweb.nl\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.book.artbeeweb.nl\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.book.artbeeweb.nl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.book.artbeeweb.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3609"}],"version-history":[{"count":5,"href":"http:\/\/www.book.artbeeweb.nl\/index.php?rest_route=\/wp\/v2\/posts\/3609\/revisions"}],"predecessor-version":[{"id":4285,"href":"http:\/\/www.book.artbeeweb.nl\/index.php?rest_route=\/wp\/v2\/posts\/3609\/revisions\/4285"}],"wp:attachment":[{"href":"http:\/\/www.book.artbeeweb.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.book.artbeeweb.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3609"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.book.artbeeweb.nl\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3609"},{"taxonomy":"series","embeddable":true,"href":"http:\/\/www.book.artbeeweb.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fseries&post=3609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}