{"id":101103,"date":"2021-08-27T10:23:05","date_gmt":"2021-08-27T08:23:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/emulyator-risc-v-v-forme-pikselnogo-shejdera-pozvolivshij-zapustit-linux-v-vrchat"},"modified":"2021-08-27T10:23:05","modified_gmt":"2021-08-27T08:23:07","slug":"emulyator-risc-v-v-forme-pikselnogo-shejdera-pozvolivshij-zapustit-linux-v-vrchat","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/emulyator-risc-v-v-forme-pikselnogo-shejdera-pozvolivshij-zapustit-linux-v-vrchat","title":{"rendered":"Pixel shader form\u00e1j\u00fa RISC-V emul\u00e1tor, mely lehet\u0151v\u00e9 tette a Linux futtat\u00e1s\u00e1t a VRChat-ben","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Megjelentek a k\u00eds\u00e9rlet eredm\u00e9nyei, amely sor\u00e1n Linux ind\u00edt\u00e1s\u00e1t szervezt\u00e9k meg egy t\u00f6bbszerepl\u0151s online j\u00e1t\u00e9k, a VRChat virtu\u00e1lis 3D ter\u00e9ben, lehet\u0151v\u00e9 t\u00e9ve 3D modellek saj\u00e1t shaderjeivel val\u00f3 bet\u00f6lt\u00e9s\u00e9t. A kit\u0171z\u00f6tt \u00f6tlet megval\u00f3s\u00edt\u00e1sa \u00e9rdek\u00e9ben l\u00e9trehoztak egy RISC-V architekt\u00fara emul\u00e1tort, amely a GPU oldal\u00e1n, pixel shader (fragment shader) form\u00e1j\u00e1ban m\u0171k\u00f6dik (a VRChat nem t\u00e1mogatja a sz\u00e1m\u00edt\u00e1si shader-eket \u00e9s UAV-t). Az emul\u00e1tor k\u00f3dj\u00e1t MIT licenc alatt tett\u00e9k k\u00f6zz\u00e9. <\/p>\n

Az emul\u00e1tor alapja C nyelven k\u00e9sz\u00fclt megval\u00f3s\u00edt\u00e1s, amely sor\u00e1n a minimalista riscv-rust emul\u00e1tor fejleszt\u00e9sei is felhaszn\u00e1l\u00e1sra ker\u00fcltek, Rust nyelven. A k\u00e9sz\u00edtett C k\u00f3dot HLSL nyelven \u00edrt pixel shader-re ford\u00edtj\u00e1k, amely bet\u00f6lthet\u0151 a VRChat-be. Az emul\u00e1tor teljes t\u00e1mogat\u00e1st biztos\u00edt az rv32imasu utas\u00edt\u00e1sk\u00e9szlet architekt\u00far\u00e1hoz, a mem\u00f3ria vez\u00e9rl\u0151 SV32-hez \u00e9s a minim\u00e1lis perif\u00e9ri\u00e1s eszk\u00f6z\u00f6kh\u00f6z (UART \u00e9s timer). A k\u00e9sz\u00edtett lehet\u0151s\u00e9gek elegend\u0151ek Linux 5.13.5 kernel \u00e9s a BusyBox parancssori k\u00f6rnyezet bet\u00f6lt\u00e9s\u00e9hez, amely k\u00f6zvetlen\u00fcl interakci\u00f3ba l\u00e9phet a VRChat virtu\u00e1lis vil\u00e1g\u00e1val.

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

Az emul\u00e1tor egy saj\u00e1t dinamikus text\u00fara form\u00e1j\u00e1ban val\u00f3sul meg a shader-ben (Unity Custom Render Texture), kieg\u00e9sz\u00edtve az Udon skriptekkel, amelyek a VRChat platformon vez\u00e9rlik az emul\u00e1tort a m\u0171k\u00f6d\u00e9se sor\u00e1n. Az emul\u00e1lt rendszer RAM tartalma \u00e9s a CPU \u00e1llapota text\u00fara form\u00e1j\u00e1ban ker\u00fcl t\u00e1rol\u00e1sra, 2048×2048 pixel m\u00e9retben. Az emul\u00e1lt processzor 250 kHz-en m\u0171k\u00f6dik. A Linux mellett Micropython is futtathat\u00f3 az emul\u00e1torban.

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

Az adatok \u00e1lland\u00f3 t\u00e1rol\u00e1s\u00e1nak \u00e9s olvas\u00e1s\u00e1nak t\u00e1mogat\u00e1s\u00e1ra egy tr\u00fckk\u00f6t haszn\u00e1lnak, amely a Camera objektum haszn\u00e1lat\u00e1ra \u00e9p\u00fcl, amely egy shader \u00e1ltal gener\u00e1lt t\u00e9glalap alak\u00fa ter\u00fclethez van k\u00f6tve, \u00e9s a renderelt text\u00fara kimenet\u00e9t ir\u00e1ny\u00edtja a shader bemenet\u00e9re. \u00cdgy b\u00e1rmely pixel, amelyet a pixel shader fut\u00e1sa sor\u00e1n \u00edrtak, beolvashat\u00f3 a k\u00f6vetkez\u0151 frame feldolgoz\u00e1sa sor\u00e1n. <\/p>\n

A pixel shader instance is run separately in parallel for each pixel of the texture. This feature significantly complicates implementation and requires specific coordination of the state of the entire emulated system and matching the processing pixel's position with the information encoded in it, such as the CPU state or the contents of the emulated system's RAM (each pixel can encode 128 bits of information). The shader code requires a vast number of checks, for which the Perl preprocessor perlpp was utilized to simplify the implementation.

\r\n \"Vide\u00f3\r\n
<\/div>\r\n <\/div><\/center>
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430 \u043f\u043e \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0430 Linux \u0432\u043d\u0443\u0442\u0440\u0438 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0433\u043e 3D-\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0430 \u043c\u043d\u043e\u0433\u043e\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u043e\u0439 online-\u0438\u0433\u0440\u044b VRChat, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0435\u0439 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0443 3D-\u043c\u043e\u0434\u0435\u043b\u0435\u0439 \u0441\u043e \u0441\u0432\u043e\u0438\u043c\u0438 \u0448\u0435\u0439\u0434\u0435\u0440\u0430\u043c\u0438. \u0414\u043b\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0437\u0430\u0434\u0443\u043c\u0430\u043d\u043d\u043e\u0439 \u0438\u0434\u0435\u0438 \u0431\u044b\u043b \u0441\u043e\u0437\u0434\u0430\u043d \u044d\u043c\u0443\u043b\u044f\u0442\u043e\u0440 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b RISC-V, \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u043c\u044b\u0439 \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 GPU \u0432 \u0432\u0438\u0434\u0435 \u043f\u0438\u043a\u0441\u0435\u043b\u044c\u043d\u043e\u0433\u043e (\u0444\u0440\u0430\u0433\u043c\u0435\u043d\u0442\u043d\u043e\u0433\u043e) \u0448\u0435\u0439\u0434\u0435\u0440\u0430 (VRChat \u043d\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u0432\u044b\u0447\u0438\u0441\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0448\u0435\u0439\u0434\u0435\u0440\u044b \u0438 UAV). \u041a\u043e\u0434 \u044d\u043c\u0443\u043b\u044f\u0442\u043e\u0440\u0430 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 MIT. \u0412 \u043e\u0441\u043d\u043e\u0432\u0435 \u044d\u043c\u0443\u043b\u044f\u0442\u043e\u0440\u0430 \u0437\u0430\u043b\u043e\u0436\u0435\u043d\u0430 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":101104,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-101103","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47RISC-V emulator in the form of a pixel shader, enabling Linux to run in VRChat | ProHoster","description":"The results of an experiment on running Linux inside a virtual 3D space of the multiplayer online game VRChat, which allows the loading of 3D models with their own shaders, have been published.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/emulyator-risc-v-v-forme-pikselnogo-shejdera-pozvolivshij-zapustit-linux-v-vrchat","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u042d\u043c\u0443\u043b\u044f\u0442\u043e\u0440 RISC-V \u0432 \u0444\u043e\u0440\u043c\u0435 \u043f\u0438\u043a\u0441\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u0448\u0435\u0439\u0434\u0435\u0440\u0430, \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0432\u0448\u0438\u0439 \u0437\u0430\u043f\u0443\u0441\u0442\u0438\u0442\u044c Linux \u0432 VRChat | ProHoster","og:description":"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430 \u043f\u043e \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0430 Linux \u0432\u043d\u0443\u0442\u0440\u0438 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0433\u043e 3D-\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0430 \u043c\u043d\u043e\u0433\u043e\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u043e\u0439 online-\u0438\u0433\u0440\u044b VRChat, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0435\u0439 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0443 3D-\u043c\u043e\u0434\u0435\u043b\u0435\u0439 \u0441\u043e \u0441\u0432\u043e\u0438\u043c\u0438 \u0448\u0435\u0439\u0434\u0435\u0440\u0430\u043c\u0438.","og:url":"https:\/\/prohoster.info\/hu\/blog\/news\/emulyator-risc-v-v-forme-pikselnogo-shejdera-pozvolivshij-zapustit-linux-v-vrchat","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2021-08-27T08:23:07+00:00","article:modified_time":"2021-08-27T08:23:07+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"101103","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-08-27 08:26:07","updated":"2022-09-27 18:54:52","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/101103","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/comments?post=101103"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/101103\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/media\/101104"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/media?parent=101103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/categories?post=101103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/tags?post=101103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}