{"id":86095,"date":"2020-06-21T13:42:24","date_gmt":"2020-06-21T11:42:24","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dlya-staryh-plat-raspberry-pi-podgotovlen-gpu-drajver-s-podderzhkoj-api-vulkan"},"modified":"2020-06-21T13:42:24","modified_gmt":"2020-06-21T11:42:24","slug":"dlya-staryh-plat-raspberry-pi-podgotovlen-gpu-drajver-s-podderzhkoj-api-vulkan","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/dlya-staryh-plat-raspberry-pi-podgotovlen-gpu-drajver-s-podderzhkoj-api-vulkan","title":{"rendered":"Per i vecchi modelli di Raspberry Pi \u00e8 stato preparato un driver GPU con supporto per l'API Vulkan","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.raspberrypi.org\/forums\/viewtopic.php?f=63&#038;t=277779\">Presentato<\/a><\/noindex> prima versione stabile del driver grafico open source <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/Yours3lf\/rpi-vk-driver\">RPi-VK-Driver 1.0<\/a><\/noindex>, realizzando il supporto per l'API grafico Vulkan per le vecchie schede Raspberry Pi, fornite con GPU Broadcom Videocore IV. Il driver \u00e8 adatto per tutti i modelli di schede Raspberry Pi, prodotti prima dell'uscita del Raspberry Pi 4, \u2014 da 'Zero' e '1 Model A' fino a '3 Model B+' e 'Compute Module 3+'. Il driver \u00e8 stato sviluppato da Martin Thomas (<noindex><a rel=\"nofollow\" href=\"https:\/\/twitter.com\/0martint\">Martin Thomas<\/a><\/noindex>), ingegnere della NVIDIA; tuttavia, lo sviluppo \u00e8 avvenuto come progetto personale, non collegato a NVIDIA (il driver \u00e8 stato sviluppato negli ultimi due anni nel tempo libero dal lavoro). Il codice <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/Yours3lf\/rpi-vk-driver\">\u00e8 distribuito<\/a><\/noindex> sotto licenza MIT.<\/p>\n<p>Poich\u00e9 le capacit\u00e0 della GPU VideoCore IV, presente nei vecchi modelli di Raspberry Pi, non sono sufficienti per un'implementazione completa di Vulkan, il driver implementa solo un sottoinsieme dell'API Vulkan, che non copre l'intero standard, ma cerca di seguirlo nel limite delle possibilit\u00e0 hardware. Tuttavia, le funzionalit\u00e0 disponibili sono sufficienti per molte applicazioni e giochi, e le prestazioni superano di gran lunga i driver OpenGL, grazie a una gestione della memoria pi\u00f9 efficiente, al trattamento multi-thread delle istruzioni GPU e al controllo diretto delle operazioni della GPU. Il driver supporta anche funzionalit\u00e0 come MSAA (anti-aliasing a pi\u00f9 campioni), shader a basso livello e contatori delle prestazioni. Tra i limiti, si segnala l'assenza di supporto per gli shader GLSL, attualmente non disponibili in questa fase di sviluppo.<\/p>\n<p>Dallo stesso autore <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/Yours3lf\/vkQuake3\/releases\/tag\/v1.0\">pubblicato<\/a><\/noindex> porting del gioco Quake 3 per Raspberry Pi, che funge da dimostrazione delle capacit\u00e0 del nuovo driver. Il gioco si basa sul motore ioQuake3, a cui \u00e8 stato aggiunto un backend di rendering modulare basato su Vulkan, originariamente sviluppato dal progetto <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/kennyalive\/Quake-III-Arena-Kenny-Edition\">Quake III Arena Kenny Edition<\/a><\/noindex>. Utilizzando il nuovo driver nel gioco <noindex><a rel=\"nofollow\" href=\"https:\/\/twitter.com\/0martint\/status\/1274012749174013954\">si \u00e8 riusciti a ottenere<\/a><\/noindex> oltre 100 fotogrammi al secondo (FPS) sulla scheda Raspberry Pi 3B+ con risoluzione di output di 720p.<\/p>\n<p>Ricordiamo che l'organizzazione Raspberry Pi Foundation insieme alla societ\u00e0 Igalia <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52304\">\u00e8 attivamente<\/a><\/noindex> sta sviluppando il proprio driver Vulkan, attualmente in fase iniziale di sviluppo e pronto per il lancio di alcune applicazioni reali nella seconda met\u00e0 del 2020. Il driver citato \u00e8 limitato al supporto dell'acceleratore grafico VideoCore VI, utilizzato a partire dal modello Raspberry Pi 4, e non supporta le vecchie schede. Rispetto a OpenGL, l'uso di Vulkan consente di raggiungere <noindex><a rel=\"nofollow\" href=\"https:\/\/abishekmuthian.com\/getting-smoother-desktop-experience-on-raspberry-pi\/\">miglioramenti delle prestazioni<\/a><\/noindex> per le applicazioni e i giochi grafici.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53202\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u043f\u0435\u0440\u0432\u044b\u0439 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0433\u043e \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 RPi-VK-Driver 1.0, \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u044e\u0449\u0435\u0433\u043e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e API Vulkan \u0434\u043b\u044f \u0441\u0442\u0430\u0440\u044b\u0445 \u043f\u043b\u0430\u0442 Raspberry Pi, \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0445 \u0441 GPU Broadcom Videocore IV. \u0414\u0440\u0430\u0439\u0432\u0435\u0440 \u043f\u043e\u0434\u0445\u043e\u0434\u0438\u0442 \u0434\u043b\u044f \u0432\u0441\u0435\u0445 \u043c\u043e\u0434\u0435\u043b\u0435\u0439 \u043f\u043b\u0430\u0442 Raspberry Pi, \u0432\u044b\u043f\u0443\u0449\u0435\u043d\u043d\u044b\u0445 \u0434\u043e \u043f\u043e\u044f\u0432\u043b\u0435\u043d\u0438\u044f Raspberry Pi 4, &#8212; \u043e\u0442 &#171;Zero&#187; \u0438 &#171;1 Model A&#187; \u0434\u043e &#171;3 Model B+&#187; \u0438 &#171;Compute Module 3+&#187;. \u0414\u0440\u0430\u0439\u0432\u0435\u0440 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-86095","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u043f\u0435\u0440\u0432\u044b\u0439 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0433\u043e \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri 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