{"id":6635,"date":"2026-04-13T11:50:55","date_gmt":"2026-04-13T11:50:55","guid":{"rendered":"http:\/\/the-codest.localhost\/dictionary\/pixel-shader\/"},"modified":"2026-04-13T11:50:55","modified_gmt":"2026-04-13T11:50:55","slug":"pixlahjupur","status":"publish","type":"dictionary","link":"https:\/\/thecodest.co\/is\/dictionary\/pixel-shader\/","title":{"rendered":"Pixlahj\u00fapur"},"content":{"rendered":"

Pixlahj\u00fapur<\/h1>\n

Pixelshader, einnig kalla\u00f0ur brotahj\u00fapur, er tegund t\u00f6lvuforrits sem nota\u00f0 er til a\u00f0 breyta lit og \u00f6\u00f0rum eiginleikum einstakra pixla \u00ed t\u00f6lvugraf\u00edk. Hann er s\u00e9rst\u00f6k tegund hj\u00faps sem er h\u00f6nnu\u00f0 til a\u00f0 vinna s\u00e9rstaklega me\u00f0 pixla, sem eru minnstu einingar myndar e\u00f0a skj\u00e1s. Pixelshaderar eru gjarnan nota\u00f0ir \u00ed n\u00fat\u00edmalegum 3D graf\u00edkv\u00e9lum til a\u00f0 b\u00faa til rauns\u00e6 l\u00fdsingu, skugga og a\u00f0ra sj\u00f3nr\u00e6na \u00e1hrif.<\/p>\n

Pixlaskuggar virka me\u00f0 \u00fev\u00ed a\u00f0 taka inntak g\u00f6gn<\/a>, svo sem lit og sta\u00f0setningu pixels, og me\u00f0 \u00fev\u00ed a\u00f0 nota st\u00e6r\u00f0fr\u00e6\u00f0ilegar \u00fatreikningar og reiknirit til a\u00f0 \u00e1kvar\u00f0a endanlegan lit og a\u00f0ra eiginleika \u00feess pixels. \u00deessir \u00fatreikningar geta veri\u00f0 nokku\u00f0 fl\u00f3knir og fali\u00f0 \u00ed s\u00e9r margv\u00edslegar inntaksbreytur, svo sem \u00e1fer\u00f0ir, l\u00fdsingarg\u00f6gn og a\u00f0rar uppl\u00fdsingar um senuna e\u00f0a hlutinn sem er birtur.<\/p>\n

Pixelskuggar eru mikilv\u00e6gur hluti af n\u00fat\u00edma graf\u00edkr\u00e1\u00f0forritun \u00fev\u00ed \u00feeir gera forriturum kleift a\u00f0 b\u00faa til afar rauns\u00e6 og sj\u00f3nr\u00e6nt st\u00f3rkostleg graf\u00edk. Me\u00f0 \u00fev\u00ed a\u00f0 vinna me\u00f0 einstaka pixla geta forritarar b\u00fai\u00f0 til fj\u00f6lbreytt \u00farval \u00e1hrifa, allt fr\u00e1 f\u00ednlegum breytingum \u00e1 lit og l\u00fdsingu til fl\u00f3kinna hermana \u00e1 n\u00e1tt\u00farulegum fyrirb\u00e6rum eins og vatni og eldi.<\/p>\n

Pixlaskuggar eru yfirleitt skrifa\u00f0ir \u00ed s\u00e9rst\u00f6ku forritunarm\u00e1li sem kallast skuggam\u00e1l, sem er hanna\u00f0 til a\u00f0 h\u00e1marka afk\u00f6st \u00e1 tilteknum v\u00e9l- og hugb\u00fana\u00f0arvettvangi sem nota\u00f0ur er \u00ed graf\u00edkforritun. Algeng skuggam\u00e1l eru HLSL, GLSL og Cg.<\/p>\n

Almennt s\u00e9\u00f0 eru pixlaskuggar \u00f3missandi t\u00e6ki \u00ed n\u00fat\u00edma graf\u00edkr\u00e1ritun, sem gera forriturum kleift a\u00f0 b\u00faa til afar rauns\u00e6 og sj\u00f3nr\u00e6nt st\u00f3rkostleg graf\u00edk sem h\u00e6gt er a\u00f0 nota \u00ed fj\u00f6lbreyttum forritum, allt fr\u00e1 t\u00f6lvuleikjum til v\u00edsindalegra hermana og s\u00fdndarveruleikaumhverfa.<\/p>","protected":false},"excerpt":{"rendered":"

L\u00e6r\u00f0u um pixlaskuggara og hvernig \u00feeir breyta lit og eiginleikum einstakra pixla \u00ed t\u00f6lvugraf\u00edk. Mikilv\u00e6gt fyrir n\u00fat\u00edma graf\u00edkforritun.<\/p>","protected":false},"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-6635","dictionary","type-dictionary","status-publish","hentry"],"acf":[],"yoast_head":"\nPixel Shader - The Codest<\/title>\n<meta name=\"description\" content=\"Learn about pixel shaders and how they manipulate color and attributes of individual pixels in computer graphics. 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