{"id":110971,"date":"2023-10-20T03:10:14","date_gmt":"2023-10-20T01:10:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/intel-vypustil-dvizhok-raspredelyonnoj-trassirovki-luchej-ospray-3-0"},"modified":"2023-10-20T03:10:14","modified_gmt":"2023-10-20T01:10:15","slug":"intel-vypustil-dvizhok-raspredelyonnoj-trassirovki-luchej-ospray-3-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/intel-vypustil-dvizhok-raspredelyonnoj-trassirovki-luchej-ospray-3-0","title":{"rendered":"Intel har sl\u00e4ppt den distribuerade str\u00e5lf\u00f6ljaren OSPRay 3.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>F\u00f6retaget Intel har offentliggjort den skalbara 3D-renderingmotorn OSPRay 3.0, avsedd f\u00f6r realistisk h\u00f6gkvalitativ visualisering med hj\u00e4lp av str\u00e5lf\u00f6ljning. Motorn utvecklas som en del av det st\u00f6rre projektet Intel Rendering Framework, som syftar till att utveckla programvara f\u00f6r visualisering av vetenskapliga ber\u00e4kningar SDVis (Software Defined Visualization), och inkluderar str\u00e5lf\u00f6ljningsbiblioteket Embree, systemet f\u00f6r fotorealistisk rendering GLuRay, biblioteket f\u00f6r bildbrusreducering oidn (Open Image Denoise) och systemet f\u00f6r programmatisk rasterisering OpenSWR. Koden \u00e4r skriven i C++ och publiceras under Apache 2.0-licensen.    <\/p>\n<p>OSPRay \u00e4r fr\u00e4mst inriktat p\u00e5 anv\u00e4ndning i interaktiva applikationer f\u00f6r realtidsrendering av scener. F\u00f6r att simulera ljusets beteende anv\u00e4nds metoden f\u00f6r str\u00e5lf\u00f6ljning. Det st\u00f6der visualisering i volymer och p\u00e5 ytor, fotorealistisk global belysning med h\u00e4nsyn till materialens fysiska egenskaper, samt avancerade skuggeffekter (skuggor, transparens och Ambient occlusion).    <\/p>\n<p>OSPRay kan fungera utan bindning till GPU, vilket g\u00f6r att biblioteket kan anv\u00e4ndas p\u00e5 en bred upps\u00e4ttning enheter, fr\u00e5n arbetsstationer till noder i ber\u00e4kningskluster. F\u00f6r att s\u00e4kerst\u00e4lla tillfredsst\u00e4llande prestanda utnyttjas aktivt multitr\u00e5dning och vektorisering baserat p\u00e5 SIMD-instruktioner, s\u00e5som Intel SSE4, AVX, AVX2 och AVX-512 (f\u00f6r att OSPRay ska fungera kr\u00e4vs \u00e5tminstone st\u00f6d f\u00f6r SSE4.1).     <\/p>\n<p>Renderingen kan distribueras \u00f6ver flera noder i klustret (MPI st\u00f6ds), vilket till exempel g\u00f6r det m\u00f6jligt att anv\u00e4nda OSPRay f\u00f6r att organisera rendering av bilder med v\u00e4ldigt h\u00f6g uppl\u00f6sning p\u00e5 videov\u00e4ggar, d\u00e4r en enhetlig bild skapas av ett set separata LCD-paneler. Till exempel har OSPRay demonstrerats p\u00e5 den sammansatta sk\u00e4rmen Stallion, best\u00e5ende av 80 30-tums monitorer (totala uppl\u00f6sningen 40960\u00d78000 eller 328 megapixlar) och hanteras av ett kluster med 40 enheter. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sv\/server\/\"   title=\"servrar\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1698\">servrar<\/a> med 6-k\u00e4rniga CPU:er baserade p\u00e5 mikroarkitekturen Intel Sandy Bridge.     <\/p>\n<p>Bland de tillagda \u00e4ndringarna:  <\/p>\n<ul>\n<li class=\"l\"> En experimentell m\u00f6jlighet f\u00f6r att anv\u00e4nda Intel Xe GPU (Intel Arc-serierna Flex och Max) f\u00f6r h\u00e5rdvaruacceleration av str\u00e5lf\u00f6ljning har implementerats (i tidigare versioner av OSPRay utf\u00f6rdes str\u00e5lf\u00f6ljningen endast p\u00e5 CPU). GPU-st\u00f6det har realiserats genom en SYCL-lager som g\u00f6r det m\u00f6jligt att skapa heterogena applikationer p\u00e5 C++ (DPC++ \u2014 Data Parallel C++). Inte alla renderingsm\u00f6jligheter \u00e4r \u00e4nnu tillg\u00e4ngliga n\u00e4r den nya enheten 'gpu' anv\u00e4nds; till exempel st\u00f6ds inte klippning, osk\u00e4rpa och segmenterad konstruktion av sl\u00e4ta ytor (Subdivision) \u00e4nnu.\n<li class=\"l\"> Underf\u00f6rst\u00e5dd indexering av polygonernas geometri har lagts till.\n<li class=\"l\"> St\u00f6d f\u00f6r \u00f6verf\u00f6ring av \u00e4gande av tempor\u00e4ra buffrar har lagts till.\n<li class=\"l\"> Optimering av MPI-modulen har genomf\u00f6rts tack vare det nya integrerade verktyg f\u00f6r prestanda\u00f6vervakning.\n<li class=\"l\"> Gradientfyllning har optimerats i SciVis-renderaren.\n<li class=\"l\"> \u00c4ndringar har gjorts i API:t som bryter bak\u00e5tkompatibiliteten. St\u00f6det f\u00f6r f\u00f6r\u00e5ldrade parametrar och anrop har upph\u00f6rt.\n<li class=\"l\"> Krav p\u00e5 minimala versioner av beroenden har h\u00f6jts: Embree 4.3.0, Open VKL 2.0.0, Open Image Denoise 2.1.0, ISPC 1.21.1 och rkcommon v1.12.0.    <\/ul>\n<p>    <center><img decoding=\"async\" alt=\"Intel har sl\u00e4ppt den distribuerade str\u00e5lf\u00f6ljaren OSPRay 3.0\" src=\"\/wp-content\/uploads\/2023\/10\/231e8ac1eb209bfe04aadf3f86611bc1.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <center><img decoding=\"async\" alt=\"Intel har sl\u00e4ppt den distribuerade str\u00e5lf\u00f6ljaren OSPRay 3.0\" src=\"\/wp-content\/uploads\/2023\/10\/64f5e6fa1b9a5e6defd45034bcfc3b33.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center><br \/>\n<br \/>K\u00e4lla: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=59958\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Intel \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u043c\u0430\u0441\u0448\u0442\u0430\u0431\u0438\u0440\u0443\u0435\u043c\u044b\u0439 \u0434\u0432\u0438\u0436\u043e\u043a 3D-\u0440\u0435\u043d\u0434\u0435\u0440\u0438\u043d\u0433\u0430 OSPRay 3.0, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u044b\u0439 \u0434\u043b\u044f \u0440\u0435\u0430\u043b\u0438\u0441\u0442\u0438\u0447\u043d\u043e\u0439 \u0432\u044b\u0441\u043e\u043a\u043e\u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0439 \u0432\u0438\u0437\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043c\u0435\u0442\u043e\u0434\u043e\u043c \u0442\u0440\u0430\u0441\u0441\u0438\u0440\u043e\u0432\u043a\u0438 \u043b\u0443\u0447\u0435\u0439. \u0414\u0432\u0438\u0436\u043e\u043a \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u0447\u0430\u0441\u0442\u044c \u0431\u043e\u043b\u0435\u0435 \u043a\u0440\u0443\u043f\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Intel Rendering Framework, \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u043d\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0443 \u0441\u0440\u0435\u0434\u0441\u0442\u0432 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0439 \u0432\u0438\u0437\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043d\u0430\u0443\u0447\u043d\u044b\u0445 \u0440\u0430\u0441\u0447\u0451\u0442\u043e\u0432 SDVis (Software Defined Visualization), \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0449\u0438\u0445 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0443 \u0442\u0440\u0430\u0441\u0441\u0438\u0440\u043e\u0432\u043a\u0438 \u043b\u0443\u0447\u0435\u0439 Embree, \u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u0444\u043e\u0442\u043e\u0440\u0435\u0430\u043b\u0438\u0441\u0442\u0438\u0447\u043d\u043e\u0439 \u043e\u0442\u0440\u0438\u0441\u043e\u0432\u043a\u0438 GLuRay, \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0443 \u0434\u043b\u044f \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0448\u0443\u043c\u043e\u0432 \u043d\u0430 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u044f\u0445 oidn (Open [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":110972,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-110971","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" 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