{"id":37399,"date":"2018-03-21T17:19:31","date_gmt":"2018-03-21T16:19:31","guid":{"rendered":"http:\/\/www.planet3dnow.de\/cms\/?p=37399"},"modified":"2018-03-22T07:49:51","modified_gmt":"2018-03-22T06:49:51","slug":"raytracing-kommt-auf-breiter-front","status":"publish","type":"post","link":"https:\/\/www.planet3dnow.de\/cms\/37399-raytracing-kommt-auf-breiter-front\/","title":{"rendered":"Raytracing in Echtzeit kommt auf breiter Front"},"content":{"rendered":"<p>Ray\u00adtra\u00adcing, also das Berech\u00adnen von 3D-Sze\u00adnen durch aus\u00adsen\u00adden von vir\u00adtu\u00adel\u00adlen Strah\u00adlen, ist seit Jah\u00adren das gro\u00ad\u00dfe Ding, das \u201cdem\u00adn\u00e4chst\u201d kom\u00admen wird. Schon w\u00e4h\u00adrend des <a href=\"http:\/\/www.planet3dnow.de\/cgi-bin\/newspub\/viewnews.cgi?category=1&amp;id=1215259287\">Intel Lar\u00adra\u00adbee<\/a> Hypes war Ray\u00adtra\u00adcing immer wie\u00adder als neu\u00ader Stan\u00addard f\u00fcr Games im Gespr\u00e4ch, weil es durch die Archi\u00adtek\u00adtur des dama\u00adli\u00adgen Many-Core-Pen\u00adti\u00adum-Designs des Lar\u00adra\u00adbee per\u00adfekt dazu gepasst h\u00e4t\u00adte. Damals konn\u00adte man bereits per Ray\u00adtra\u00adcing berech\u00adne\u00adte Qua\u00adke-Demos begut\u00adach\u00adten. Da Lar\u00adra\u00adbee jedoch nie erschie\u00adnen ist, ist auch Ray\u00adtra\u00adcing f\u00fcr den pri\u00adva\u00adten Gamer\u00admarkt wie\u00adder in den Hin\u00adter\u00adgrund ger\u00fcckt.<\/p>\n<p>Die\u00adses Mal jedoch \u2013 knapp 10 Jah\u00adre sp\u00e4\u00adter \u2013 scheint der Vor\u00adsto\u00df ernst gemeint zu sein, denn er kommt aus meh\u00adre\u00adren Ecken. <a href=\"https:\/\/developer.nvidia.com\/rtx\" rel=\"noopener\" target=\"_blank\"><span class=\"caps\">NVIDIA<\/span> hat mit <span class=\"caps\">RTX<\/span><\/a> wie \u00fcblich eine pro\u00adprie\u00adt\u00e4\u00adre Schnitt\u00adstel\u00adle am Start, die mit <a href=\"https:\/\/www.heise.de\/newsticker\/meldung\/Raytracing-fuer-Spiele-kommt-Microsoft-Schnittstelle-DirectX-Raytracing-und-Nvidia-RTX-angekuendigt-3998690.html\" rel=\"noopener\" target=\"_blank\">Micro\u00adsofts DXR-Erwei\u00adte\u00adrung<\/a> der DirectX-API eine uni\u00adver\u00adsel\u00adle Schnitt\u00adstel\u00adle (unter Win\u00addows) f\u00fcr Ray\u00adtra\u00adcing zur Ver\u00adf\u00fc\u00adgung stel\u00adlen m\u00f6ch\u00adte. Dabei hat <span class=\"caps\">NVIDIA<\/span> offen\u00adbar mit Micro\u00adsoft koope\u00adriert, denn f\u00fcr das Ray\u00adtra\u00adcing soll der Ten\u00adsor-Chip der <span class=\"caps\">NVIDIA<\/span> Vol\u00adta zum Ein\u00adsatz kommen.<\/p>\n<p><span class=\"caps\">AMD<\/span> dage\u00adgen stellt <a href=\"https:\/\/gpuopen.com\/announcing-real-time-ray-tracing\/\" rel=\"noopener\" target=\"_blank\">Rade\u00adon Pro\u00adRen\u00adder vor<\/a>, das jedoch nicht als Gegen\u00adst\u00fcck zu NVI\u00adDI\u00adAs <span class=\"caps\">RTX<\/span> gedacht ist, son\u00addern als quell\u00adof\u00adfe\u00adne Schnitt\u00adstel\u00adle f\u00fcr Blen\u00adder, Auto\u00addesk 3ds Max, Maya oder Cine\u00adma&nbsp;<span class=\"caps\">4D<\/span>.<\/p>\n<p><\/p><center><iframe loading=\"lazy\" width=\"854\" height=\"480\" src=\"https:\/\/www.youtube.com\/embed\/P2Jq4EcV3xk\" frameborder=\"0\" allow=\"autoplay; encrypted-media\" allowfullscreen><\/iframe><\/center>\n<blockquote><p>The level of visu\u00adal detail requi\u00adred of <span class=\"caps\">CAD<\/span> models for the auto\u00admo\u00adti\u00adve indus\u00adtry or the most advan\u00adced film <span class=\"caps\">VFX<\/span> requi\u00adres a level of visu\u00adal accu\u00adra\u00adcy that can only be achie\u00adved with advan\u00adced ray tra\u00adcing tech\u00adni\u00adques. Ray tra\u00adcing maps the path of light rays from each pixel of the ren\u00adde\u00adred object back to the came\u00adra, rea\u00adli\u00adsti\u00adcal\u00adly simu\u00adla\u00adting light inter\u00adac\u00adtions like shadows, reflec\u00adtions and trans\u00adpa\u00adren\u00adcy. Ray tra\u00adcing is very pro\u00adces\u00adsor inten\u00adsi\u00adve resul\u00adting in long ren\u00adder times and low frame rates. Alter\u00adna\u00adtively, ras\u00adte\u00adriza\u00adti\u00adon (or scan\u00adline) ren\u00adde\u00adring uses algo\u00adrith\u00adms to appro\u00adxi\u00adma\u00adte the appearance of <span class=\"caps\">3D<\/span> objects, sur\u00adfaces and tex\u00adtures. Ras\u00adte\u00adriza\u00adti\u00adon can be acce\u00adle\u00adra\u00adted by <span class=\"caps\">GPU<\/span> hard\u00adware resul\u00adting in real-time ren\u00adde\u00adring and high frame rates making it an ide\u00adal fit for gam\u00ading. Of cour\u00adse the trade-off with ras\u00adte\u00adriza\u00adti\u00adon is that the appro\u00adxi\u00adma\u00adted ren\u00adders are nowhe\u00adre clo\u00adse to the pho\u00adto\u00adrea\u00adlism of their ray tra\u00adced coun\u00adter\u00adparts. The\u00adse trade-offs bet\u00adween ras\u00adte\u00adriza\u00adti\u00adon and ray tra\u00adcing tra\u00addi\u00adtio\u00adnal\u00adly impo\u00adse cor\u00adre\u00adspon\u00adding cons\u00adtraints on <span class=\"caps\">3D<\/span> desi\u00adgners who would have to choo\u00adse bet\u00adween rea\u00adli\u00adstic illu\u00admi\u00adna\u00adti\u00adon and real-time speeds depen\u00adding on the prio\u00adri\u00adties of their project.<\/p><\/blockquote>\n<p>Das erin\u00adnert an AMDs Vor\u00adsto\u00df mit einer neu\u00aden Low-Level-API namens <a href=\"http:\/\/www.planet3dnow.de\/cms\/9145-amd-mantle-die-neue-api-in-einem-ersten-test-4-update\/\">Man\u00adt\u00adle<\/a>, womit <span class=\"caps\">AMD<\/span> eine \u00e4hn\u00adlich hard\u00adware\u00adna\u00adhe <span class=\"caps\">API<\/span> eta\u00adblie\u00adren woll\u00adte, wie Gli\u00adde damals bei 3dfx. <a href=\"http:\/\/www.planet3dnow.de\/cms\/22531-khronos-veroeffentlicht-vulkan-1-0-des-kaisers-neuer-mantle\/\">Aus Man\u00adt\u00adle wur\u00adde bekannt\u00adlich Vul\u00adkan<\/a>, die platt\u00adform\u00ad\u00fcber\u00adgrei\u00adfen\u00adde <span class=\"caps\">API<\/span> f\u00fcr auf\u00adw\u00e4n\u00addi\u00adge 3D-Spie\u00adle, die jedoch auch heu\u00adte immer noch nicht so recht durch\u00adstar\u00adten&nbsp;mag.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ray\u00adtra\u00adcing, also das Berech\u00adnen von 3D-Sze\u00adnen durch aus\u00adsen\u00adden von vir\u00adtu\u00adel\u00adlen Strah\u00adlen, ist seit Jah\u00adren das gro\u00ad\u00dfe Ding, das \u201edem\u00adn\u00e4chst\u201d kom\u00admen wird. Schon w\u00e4h\u00adrend des Intel Lar\u00adra\u00adbee Hypes war Ray\u00adtra\u00adcing immer wie\u00adder als neu\u00ader Stan\u00addard f\u00fcr Games im Gespr\u00e4ch. (\u2026) <a class=\"moretag\" href=\"https:\/\/www.planet3dnow.de\/cms\/37399-raytracing-kommt-auf-breiter-front\/\">Wei\u00adter\u00adle\u00adsen&nbsp;\u00bb<\/a><\/p>\n","protected":false},"author":2,"featured_media":790,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"wp_typography_post_enhancements_disabled":false,"ngg_post_thumbnail":0,"footnotes":""},"categories":[12],"tags":[363,992,969,1102,1470],"class_list":["post-37399","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aktuelles","tag-directx","tag-nvidia","tag-radeon","tag-vega","tag-volta","entry"],"share_on_mastodon":{"url":"","error":""},"_links":{"self":[{"href":"https:\/\/www.planet3dnow.de\/cms\/wp-json\/wp\/v2\/posts\/37399","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.planet3dnow.de\/cms\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.planet3dnow.de\/cms\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.planet3dnow.de\/cms\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.planet3dnow.de\/cms\/wp-json\/wp\/v2\/comments?post=37399"}],"version-history":[{"count":14,"href":"https:\/\/www.planet3dnow.de\/cms\/wp-json\/wp\/v2\/posts\/37399\/revisions"}],"predecessor-version":[{"id":37418,"href":"https:\/\/www.planet3dnow.de\/cms\/wp-json\/wp\/v2\/posts\/37399\/revisions\/37418"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.planet3dnow.de\/cms\/wp-json\/wp\/v2\/media\/790"}],"wp:attachment":[{"href":"https:\/\/www.planet3dnow.de\/cms\/wp-json\/wp\/v2\/media?parent=37399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.planet3dnow.de\/cms\/wp-json\/wp\/v2\/categories?post=37399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.planet3dnow.de\/cms\/wp-json\/wp\/v2\/tags?post=37399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}