{"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\/it\/blog\/news\/trassirovka-luchej-prishla-na-geforce-gtx-mozhete-ubeditsya-sami","title":{"rendered":"Il ray tracing \u00e8 arrivato su GeForce GTX: puoi verificarlo tu stesso","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Da oggi, il ray tracing in tempo reale \u00e8 supportato non solo dalle schede grafiche GeForce RTX, ma anche da alcune schede GeForce GTX 16xx e 10xx. Il driver GeForce Game Ready 425.31 WHQL, che fornisce questa funzionalit\u00e0 alle schede grafiche, \u00e8 gi\u00e0 disponibile per il download dal sito ufficiale NVIDIA o pu\u00f2 essere aggiornato tramite l'app GeForce Now.<\/p>\n

\"Il<\/p>\n

L'elenco delle schede grafiche che supportano il ray tracing in tempo reale \u00e8 stato ampliato con le schede GeForce GTX 1660 Ti e GTX 1660, Titan Xp e Titan X (Pascal), GeForce GTX 1080 Ti e GTX 1080, GeForce GTX 1070 Ti e GTX 1070, nonch\u00e9 la versione GeForce GTX 1060 con 6 GB di memoria. Naturalmente, il ray tracing qui funzioner\u00e0 con alcune limitazioni rispetto alle schede GeForce RTX. E pi\u00f9 giovane \u00e8 la scheda grafica, maggiori saranno le limitazioni. Tuttavia, il fatto che anche i possessori della meno potente GeForce GTX 1060 possano 'toccare' questa nuova tecnologia \u00e8 senza dubbio positivo.<\/p>\n

\"Il<\/p>\n

Mentre le schede GeForce RTX dispongono di unit\u00e0 di calcolo specializzate (nuclei RT) che abilitano l'accelerazione hardware del ray tracing, le schede GeForce GTX non hanno affatto tali elementi. Pertanto, il ray tracing \u00e8 implementato attraverso l'estensione DXR per Direct3D 12, e il processamento dei raggi sar\u00e0 gestito da normali shader di calcolo su un array di nuclei CUDA.<\/p>\n

\r\n \"Guarda\r\n
<\/div>\r\n <\/div><\/center><\/p>\n

Questo approccio, ovviamente, non consentir\u00e0 alle schede grafiche basate su GPU Pascal e alle pi\u00f9 datate Turing di raggiungere lo stesso livello di prestazioni nel ray tracing delle modelli della serie GeForce RTX. Le diapositive pubblicate da NVIDIA sui risultati dei test di prestazioni di diverse schede grafiche usando il ray tracing mostrano un'enorme differenza tra i modelli GeForce RTX e GeForce GTX.<\/p>\n

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

Ad esempio, nel gioco Metro Exodus, dove il ray tracing \u00e8 utilizzato per l'illuminazione globale, nessuna delle schede grafiche GeForce GTX \u00e8 riuscita a garantire un FPS accettabile. Anche il flagship della generazione precedente, la GeForce GTX 1080 Ti, ha mostrato solo 16,4 fps. D'altra parte, in Battlefield V, dove il ray tracing \u00e8 utilizzato solo per le riflessioni, il flagship della generazione Pascal \u00e8 comunque riuscito a raggiungere i 30 FPS.<\/p>\n

\"Il <\/p>\n

Tuttavia, NVIDIA ha testato le schede grafiche con le impostazioni grafiche pi\u00f9 elevate, massima intensit\u00e0 di ray tracing e risoluzione di 2560 \u00d7 1440 pixel. Cio\u00e8, le condizioni, a dir poco, non erano le pi\u00f9 favorevoli: la stessa GeForce GTX 2060 in Metro Exodus otteneva in media poco pi\u00f9 di 34 fps. Per raggiungere un FPS 'giocabile' su schede grafiche pi\u00f9 vecchie, sar\u00e0 necessario ridurre la risoluzione e la qualit\u00e0 grafica. Ma in primo luogo, le impostazioni dell'intensit\u00e0 del ray tracing influeranno sulle loro prestazioni.<\/p>\n

\"Il<\/p>\n

Ricordiamo che attualmente \u00e8 possibile sperimentare il ray tracing in tre giochi: Battlefield V, Metro Exodus e Shadow of the Tomb Raider. \u00c8 disponibile anche in tre dimostrazioni: Atomic Heart, Justice e Reflections. Sia nei giochi che nelle dimostrazioni, ci vengono proposte varie opzioni per utilizzare il ray tracing. In alcuni casi si occupa di riflessi e ombre, in altri di illuminazione globale.<\/p>\n

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

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