{"id":31544,"date":"2019-10-31T21:41:47","date_gmt":"2019-10-31T18:41:47","guid":{"rendered":"https:\/\/prohoster.info\/blog\/trassirovka-luchej-prishla-na-geforce-gtx-mozhete-ubeditsya-sami\/"},"modified":"2019-10-31T21:41:47","modified_gmt":"2019-10-31T18:41:47","slug":"trassirovka-luchej-prishla-na-geforce-gtx-mozhete-ubeditsya-sami","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/trassirovka-luchej-prishla-na-geforce-gtx-mozhete-ubeditsya-sami","title":{"rendered":"Raiul de umbre a ajuns pe GeForce GTX: v\u0103 pute\u021bi convinge singuri","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\u00cencep\u00e2nd de ast\u0103zi, raile de umbre \u00een timp real sunt sus\u021binute nu doar de pl\u0103cile grafice GeForce RTX, ci \u0219i de unele pl\u0103ci grafice GeForce GTX 16xx \u0219i 10xx. Driverul GeForce Game Ready 425.31 WHQL, care ofer\u0103 aceast\u0103 func\u021bie pl\u0103cilor grafice, poate fi desc\u0103rcat deja de pe site-ul oficial NVIDIA sau actualizat prin aplica\u021bia GeForce Now.<\/p>\n

\"Raiul<\/p>\n

Lista pl\u0103cilor grafice care suport\u0103 trasarea razelor \u00een timp real a fost completat\u0103 cu pl\u0103cile grafice GeForce GTX 1660 Ti \u0219i GTX 1660, Titan Xp \u0219i Titan X (Pascal), GeForce GTX 1080 Ti \u0219i GTX 1080, GeForce GTX 1070 Ti \u0219i GTX 1070, precum \u0219i versiunea GeForce GTX 1060 cu 6 GB memorie. Desigur, trasarea razelor va func\u021biona aici cu anumite limit\u0103ri \u00een compara\u021bie cu pl\u0103cile grafice GeForce RTX. Cu c\u00e2t placa grafic\u0103 este mai veche, cu at\u00e2t limit\u0103rile vor fi mai mari. Totu\u0219i, faptul c\u0103 proprietarii chiar \u0219i ai celei mai pu\u021bin puternice GeForce GTX 1060 vor putea s\u0103 \u201eexperimenteze\u201d aceast\u0103 nou\u0103 tehnologie este \u00eembucur\u0103tor.<\/p>\n

\"Raiul<\/p>\n

Dac\u0103 pl\u0103cile grafice GeForce RTX au unit\u0103\u021bi de calcul specializate (nuclee RT) care asigur\u0103 accelerarea hardware-ului pentru raile de umbre, pl\u0103cile grafice GeForce GTX nu au astfel de elemente. Prin urmare, raile de umbre sunt implementate prin extensia DXR pentru Direct3D 12, iar procesarea razelor va fi efectuat\u0103 de shaderii de calcul obi\u0219nui\u021bi pe un array de nuclee CUDA.<\/p>\n

\r\n \"Reda\u021bi\r\n
<\/div>\r\n <\/div><\/center><\/p>\n

Aceast\u0103 abordare nu va permite, desigur, pl\u0103cilor grafice cu procesoare grafice Pascal \u0219i Turing inferioare s\u0103 ofere acela\u0219i nivel de performan\u021b\u0103 \u00een raile de umbre ca modelele din seria GeForce RTX. Slide-urile NVIDIA publicate cu rezultatele test\u0103rii performan\u021bei diverselor pl\u0103ci grafice folosind raile de umbre demonstreaz\u0103 o diferen\u021b\u0103 uria\u0219\u0103 \u00eentre modelele GeForce RTX \u0219i GeForce GTX.<\/p>\n

<\/center>
\n \"Raiul <\/p>\n

De exemplu, \u00een jocul Metro Exodus, unde raile de umbre asigur\u0103 iluminarea global\u0103, niciuna dintre pl\u0103cile grafice GeForce GTX nu a reu\u0219it s\u0103 ofere un FPS acceptabil. Chiar \u0219i v\u00e2rful de gam\u0103 al genera\u021biei anterioare, GeForce GTX 1080 Ti, a reu\u0219it s\u0103 ob\u021bin\u0103 doar 16,4 cadre pe secund\u0103. \u00cen schimb, \u00een Battlefield V, unde raile de umbre asigur\u0103 doar reflexii, v\u00e2rful de gam\u0103 al genera\u021biei Pascal a reu\u0219it totu\u0219i s\u0103 ating\u0103 30 FPS.<\/p>\n

\"Raiul <\/p>\n

Cu toate acestea, NVIDIA a testat pl\u0103cile grafice la cele mai \u00eenalte set\u0103ri grafice, cu o intensitate maxim\u0103 a tras\u0103rii razelor \u0219i \u00eentr-o rezolu\u021bie de 2560 \u00d7 1440 pixeli. Asta \u00eenseamn\u0103 c\u0103 condi\u021biile, cu alte cuvinte, nu au fost cele mai favorabile: aceea\u0219i GeForce GTX 2060 \u00een Metro Exodus ob\u021binea \u00een medie pu\u021bin peste 34 de cadre pe secund\u0103. Ob\u021binerea unui FPS \u201ejucabil\u201d pe pl\u0103cile grafice mai vechi va fi posibil\u0103 reduc\u00e2nd rezolu\u021bia \u0219i calitatea graficii. Dar \u00een primul r\u00e2nd, performan\u021ba lor va fi afectat\u0103 de set\u0103rile intensit\u0103\u021bii tras\u0103rii razelor.<\/p>\n

\"Raiul<\/p>\n

Reamintim c\u0103, \u00een acest moment, ray tracing-ul poate fi experimentat \u00een trei jocuri: Battlefield V, Metro Exodus \u0219i Shadow of the Tomb Raider. De asemenea, este disponibil \u00een trei demo-uri: Atomic Heart, Justice \u0219i Reflections. At\u00e2t \u00een jocuri, c\u00e2t \u0219i \u00een demonstra\u021bii, ni se ofer\u0103 diferite op\u021biuni de utilizare a ray tracing-ului. Undeva, acesta se ocup\u0103 de reflec\u021bii \u0219i umbre, iar \u00een alt loc de iluminarea global\u0103.<\/p>\n

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\t\t\t\t


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Sursa: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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