{"id":613,"date":"2014-11-24T00:17:09","date_gmt":"2014-11-23T16:17:09","guid":{"rendered":"http:\/\/www.animator.idv.tw\/?p=613"},"modified":"2014-12-29T18:28:56","modified_gmt":"2014-12-29T10:28:56","slug":"pixar-renderman-19-%e7%99%bc%e4%bd%88","status":"publish","type":"post","link":"https:\/\/www.animator.idv.tw\/?p=613","title":{"rendered":"Pixar RenderMan 19 \u767c\u4f48"},"content":{"rendered":"<p>\u6700\u65b0\u7248\u7684RenderMan\u7248\u672c19\u4f7f\u7528\u4e86\u5168\u65b0\u7684RIS Framework\uff0c\u65b0\u7684RIS\u67b6\u69cb\u53ef\u4ee5\u8655\u7406\u66f4\u8907\u96dcGeometry\u7684\u5834\u666f\uff0cRIS\u4e5f\u6df7\u5408\u4e86\u5404\u7a2e\u7684\u6f14\u7b97\u6cd5\uff0c\u5305\u542bunidirectional path tracer\u8207bidirectional path tracer\u7684progressive photon mapping\u3002<\/p>\n<p>\u5728fxGuide\u4e5f\u6709\u4e00\u7bc7\u4e3b\u984c<a href=\"http:\/\/www.fxguide.com\/featured\/rendermanris-and-the-start-of-next-25-years\/\">&#8220;RenderMan\/RIS and the start of next 25 years&#8221;<\/a>\u4ecb\u7d39\u4e86\u65b0\u7684RIS\u6280\u8853\uff0c\u5728\u67d0\u4e9b\u60c5\u5f62\u4e0b\u901f\u5ea6\u6bd4REYES\u6a21\u5f0f\u5feb2~10\u500d\u3002\u88e1\u9762\u5305\u542b\u4e86\u4e00\u500bProgressive\u7684renderer\uff0c\u53ef\u4ee5\u5f97\u5230\u8996\u89ba\u4e0a\u5feb\u901f\u8abf\u6574\u7d50\u679c\u3002<\/p>\n<p><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/ytdIF24H0ks\" width=\"854\" height=\"510\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h5><span style=\"color: #ff9900;\"><em><strong>Integrators<\/strong><\/em><\/span><\/h5>\n<p>\u65b0\u7684RIS\u67b6\u69cb\u4e5f\u63d0\u4f9b\u4e86Integrators\u7684\u6a5f\u5236\uff0c\u63d0\u4f9b\u53ef\u4ee5\u81ea\u8a02Light Transport\u7684\u65b9\u6cd5\uff0cPixar\u63d0\u4f9b\u6a19\u6e96\u7684\u5169\u7a2eproduction\u54c1\u8cea\u7684Integrator<\/p>\n<ul>\n<li><span style=\"color: #ff9900;\">The Path Tracer<\/span><br \/>\n\u9069\u7528\u65bc\u6236\u5916\u5149\u6e90\u7684\u8207\u5927\u578b\u7684\u76f4\u63a5\u5149\u6e90\u5834\u666f\uff0c\u9019\u500b\u696d\u754c\u6a19\u6e96\u7684unidirectional path tracer\u7d50\u5408\u5f9e\u6750\u8ceahit point\u5f97\u5230\u7684sample\u8207\u71c8\u5149\u7684sample\u4f86\u4f30\u8a08\u76f4\u63a5\u5149\u6e90\uff0c\u4e4b\u5f8c\u518d\u7522\u751f\u984d\u5916\u7684ray\u4f86\u8655\u7406\u9593\u63a5\u7167\u660e\uff0c\u9019\u500bpath tracer\u4e5f\u63d0\u4f9b\u4e86\u539f\u59cb\u78bc\u7528\u65bc\u9032\u4e00\u6b65\u7684\u81ea\u8a02\u3002<\/li>\n<li><span style=\"color: #ff9900;\">The VCM Integrator (Bi-Directional Path Tracer)<\/span><br \/>\n\u5c0d\u65bcunidirectional path tracing\u6709\u554f\u984c\u7684\u5834\u666f\uff0cVCM integrator\u53ef\u4ee5\u8f15\u9b06\u89e3\u6c7a\uff0c\u9664\u4e86\u5f9eCamera tracing path\u4e4b\u5916\uff0cbi-directional path tracing\u9084\u5f9e\u5149\u6e90\u767c\u9001ray\u7136\u5f8c\u9023\u63a5\u5b83\u5011\uff0cVCM\u53ef\u4ee5\u89e3\u6c7a\u8907\u96dc\u7684indirect paths\u8207caustic effects(\u7126\u6563\u6548\u679c)\uff0c\u5728unidirectional path tracing\u53ef\u80fd\u662f\u975e\u5e38\u6162\u7684\uff0c\u9069\u5408\u5c0d\u5ba4\u5167\u8907\u96dc\u7167\u660e\u8a2d\u5b9a\u5305\u542bcaustic effects\uff0cVCM\u5728\u4f60\u7684\u8655\u7f6e\u4e0b\uff0c\u662f\u4e00\u500b\u6709\u50f9\u503c\u7684\u5de5\u5177\u3002<\/li>\n<\/ul>\n<h5><span style=\"color: #ff9900;\"><em><strong>Ray Traced Subsurface Scattering<\/strong><\/em><\/span><\/h5>\n<p>\u8207Disney Research Zurich(\u8fea\u65af\u5c3c\u8607\u9ece\u4e16\u7814\u7a76\u5ba4)\u6700\u65b0\u767c\u5c55\u7684\u7d50\u679c\uff0cRIS\u63d0\u4f9b\u4e86Sub-Surface Scattering(\u6b21\u8868\u9762\u6563\u5c04)\u8207\u80fd\u5920\u7522\u751f\u903c\u771f\u7684\u6548\u679c\uff0c\u5982\u4eba\u7684\u76ae\u819a\u7684\u8907\u96dcshader\u5b8c\u5168raytracing\u89e3\u6c7a\u65b9\u6848\uff0c\u5b8c\u5168\u76f8\u5bb9interactive rendering\uff0c\u53ef\u4ee5\u8f15\u6613\u76f4\u89c0\u7684\u8655\u7406\u8907\u96dc\u7684\u7d50\u679c\u3002<\/p>\n<p><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/k1DKFskGHvg\" width=\"854\" height=\"510\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h5><span style=\"color: #ff9900;\"><em><strong>Open Standards(\u958b\u653e\u7684\u6a19\u6e96)<\/strong><\/em><\/span><\/h5>\n<p>Pixar\u64c1\u6709\u627f\u8afe\u958b\u767c\u8207\u63a1\u7528\u958b\u653e\u6a19\u6e96\u5728\u52d5\u756b\u8207\u7279\u6548\u7522\u696d\uff0cRenderMan\u7684\u652f\u6301\u5305\u62ec\u4ee5\u4e0b\u6d41\u884c\u7684\u958b\u653e\u6a19\u6e96\uff1aAlembic\uff0cOpenColorIO\uff0cOpenEXR\u7684\uff0cOpenSubdiv\uff0cOpenVDB\uff0cOSL\uff0cRSL\uff0cSeExpr\uff0cPtex\uff0cUDIM\uff0cUSD\u7b49<\/p>\n<h5><span style=\"color: #ff9900;\"><em><strong>Shader Libraries<\/strong><\/em><\/span><\/h5>\n<p>RIS\u4f7f\u7528\u4e86\u5148\u9032physically accurate\u7684Shader Library\uff0c\u6700\u4f73\u5316BRDFs\u7528\u65bc\u904b\u7b97\u6602\u8cb4\u7684global illumination(\u5168\u57df\u7167\u660e)\u6548\u679c\uff0cRIS\u63d0\u4f9b\u4e86\u5169\u7a2eShader\u7cfb\u7d71\u4f86\u9054\u5230\u6700\u5927\u7684\u5f48\u6027\uff0c\u5169\u500b\u7cfb\u7d71\u90fd\u6709\u81ea\u5df1\u7684\u9810\u8a2d\u8cc7\u6599\u5eab\uff0c\u57fa\u65bc\u771f\u5be6\u4e16\u754c\u7684\u6750\u8cea\u3002<\/p>\n<ul>\n<li><span style=\"color: #ff9900;\"><strong>Disney&#8217;s Principled Shader<\/strong><\/span><br \/>\n\u5f9eDisney&#8217;s physically-based Principled Shader\u5be6\u4f5c\uff0c\u5728\u8a72Shader\u80cc\u5f8c\u7684\u76ee\u7684\u662f\u4f7f\u7528\u6700\u5c11\u7684\u63a7\u5236\u9054\u5230\u6700\u6709\u85dd\u8853\u4e0a\u7684\u5f48\u6027\u63a7\u5236\uff0c\u901f\u5ea6\u5feb\uff0c\u8abf\u6574\u5bb9\u6613\uff0c\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u7d50\u679c\u3002<\/li>\n<li><span style=\"color: #ff9900;\"><strong>The LM Shader System<\/strong><\/span><br \/>\n\u4f7f\u7528Layered Material System(LM)\uff0c\u5e7e\u4e4e\u53ef\u4ee5\u4f7f\u7528\u9ad8\u5ea6\u903c\u771f\u7684\u7269\u7406\u6a21\u578b\uff0c\u7522\u751f\u4efb\u4f55\u985e\u578b\u7684\u8868\u9762\uff0c\u8a72Shader\u7cfb\u7d71\u7684\u6838\u5fc3\u662f\u57fa\u790e\u6750\u8cea(diffuse, glass, subsurface\u7b49\u7b49)\uff0c\u5728\u4e0a\u9762\u7684\u5c64\u662f\u985e\u4f3c\u6f06(varnish)\u6216\u900f\u660e\u5857\u5c64(clear coat)\uff0c\u9019\u4e9b\u5b8c\u6574\u7684\u6750\u8cea\uff0c\u53ef\u4ee5\u5206\u5c64\u7684\u4f86\u5efa\u7acb\u8907\u96dc\u7684\u8868\u73fe\u3002<\/li>\n<\/ul>\n<p><a href=\"http:\/\/rendermansite.pixar.com\/ca_twopointo_cms_data\/images\/19358_21191.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.animator.idv.tw\/wp-content\/uploads\/2014\/11\/TheLM_Shader_System.jpg\" alt=\"TheLM_Shader_System\" width=\"550\" height=\"324\" class=\"aligncenter size-full wp-image-614\" srcset=\"https:\/\/www.animator.idv.tw\/wp-content\/uploads\/2014\/11\/TheLM_Shader_System.jpg 550w, https:\/\/www.animator.idv.tw\/wp-content\/uploads\/2014\/11\/TheLM_Shader_System-300x176.jpg 300w, https:\/\/www.animator.idv.tw\/wp-content\/uploads\/2014\/11\/TheLM_Shader_System-150x88.jpg 150w\" sizes=\"(max-width: 550px) 100vw, 550px\" \/><\/a><\/p>\n<p>\u5728\u4e4b\u524d\u6240\u63d0\u5230\u975e\u5546\u696d(Non-Commercial)\u7248\u672c\u7684RenderMan\uff0c\u5ef6\u81f3\u52302015\u5e74\u521d\u91cb\u51fa\uff0c<a href=\"http:\/\/renderman.pixar.com\/view\/DP25849\">Non-Commercial FAQ<\/a>\u4e5f\u6709\u66f4\u65b0\u3002<\/p>\n<p>\u76f8\u95dc\u7db2\u7ad9<br \/>\n<a href=\"http:\/\/rendermansite.pixar.com\/view\/latest-tech\">Introducing the RIS Framework<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u65b0\u7248\u7684RenderMan\u7248\u672c19\u4f7f\u7528\u4e86\u5168\u65b0\u7684RIS Framework\uff0c\u65b0\u7684RIS\u67b6\u69cb\u53ef\u4ee5\u8655\u7406\u66f4\u8907\u96dcGeometry\u7684\u5834\u666f\uff0cRIS\u4e5f\u6df7\u5408\u4e86\u5404\u7a2e\u7684\u6f14\u7b97\u6cd5\uff0c\u5305\u542bunidirectional path t\u2026<\/p>\n<p class=\"continue-reading-button\"> <a class=\"continue-reading-link\" href=\"https:\/\/www.animator.idv.tw\/?p=613\">\u7e7c\u7e8c\u95b1\u8b80<i class=\"crycon-right-dir\"><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":615,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[51,54],"_links":{"self":[{"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=\/wp\/v2\/posts\/613"}],"collection":[{"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=613"}],"version-history":[{"count":7,"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=\/wp\/v2\/posts\/613\/revisions"}],"predecessor-version":[{"id":622,"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=\/wp\/v2\/posts\/613\/revisions\/622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=\/wp\/v2\/media\/615"}],"wp:attachment":[{"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=613"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=613"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=613"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}