{"id":4013,"date":"2013-01-29T15:23:42","date_gmt":"2013-01-29T06:23:42","guid":{"rendered":"http:\/\/www.webtech.co.jp\/blog\/?p=4013"},"modified":"2020-06-16T09:35:47","modified_gmt":"2020-06-16T00:35:47","slug":"post-4013","status":"publish","type":"post","link":"https:\/\/www.webtech.co.jp\/blog\/optpix_labs\/format\/4013\/","title":{"rendered":"DXTC(S3TC)\u5727\u7e2e\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u306f\uff1f\uff5e\u524d\u7de8\uff5e"},"content":{"rendered":"<p>\u521d\u3081\u307e\u3057\u3066\u3001R&amp;D\u90e8 \u4e0a\u7530\u3068\u7533\u3057\u307e\u3059\u3002<br \/>\n\u300cOPTPiX Labs Blog\u300d\u306b\u306f\u521d\u767b\u5834\u3067\u3059\u3002\u4eca\u56de\u304b\u3089\u3001\u3088\u304f\u4f7f\u308f\u308c\u308b\u3044\u304f\u3064\u304b\u306e\u753b\u50cf\u5727\u7e2e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u7b2c\u4e00\u56de\u76ee\u306fDXTC\uff08S3TC\uff09\u5727\u7e2e\u306b\u3064\u3044\u3066\u3001\u3067\u3059\u3002<\/p>\n<p><!--more--><\/p>\n<h2>DXTC\u3063\u3066\u4f55\uff1f<\/h2>\n<p>DXTC\u3068\u306f\u753b\u50cf\u5727\u7e2e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u4e00\u7a2e\u3067\u3001DirectX Texture Compression\u306e\u7565\u79f0\u3067\u3059\u3002DXTC\u3092\u4f7f\u3046\u3068\u753b\u50cf\u5bb9\u91cf\u3092\u5c0f\u3055\u304f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u975e\u53ef\u9006\u5727\u7e2e\u306a\u306e\u3067\u753b\u50cf\u304c\u52a3\u5316\u3057\u307e\u3059\u3002\u307e\u305f\u3001S3 Graphics\u793e\u306e\u958b\u767a\u3057\u305f\u6280\u8853\u306a\u306e\u3067\u3001S3TC(=S3 Texture Compression)\u3068\u3082\u547c\u3070\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>DXTC\u3063\u3066\u3069\u3093\u306a\u3068\u3053\u308d\u3067\u4f7f\u308f\u308c\u3066\u3044\u308b\u306e\uff1f<\/h2>\n<p>NINTENDO GAMECUBE\u00ae\u3001Wii\u00ae\u3001Wii\u00a0U&#x2122;\u3001PSP\u00ae\u3001PS3\u00ae\u3001Xbox\u00ae\u3001Xbox360\u00ae\u306a\u3069\u306e\u5bb6\u5ead\u7528\u30b2\u30fc\u30e0\u6a5f\u3084\u3001Windows PC\u306e\u307b\u3068\u3093\u3069\u306e\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u30ab\u30fc\u30c9\u3001\u3055\u3089\u306bNvidia Tegra\u642d\u8f09\u306e\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u30fb\u30bf\u30d6\u30ec\u30c3\u30c8\u306a\u3069\u3067\u30013D\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u63cf\u753b\u3059\u308b\u969b\u306e\u5727\u7e2e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3068\u3057\u3066\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u306a\u3093\u3067DXTC\u3092\u4f7f\u3046\u306e\uff1f\uff08JPEG\u3058\u3083\u30c0\u30e1\u306a\u306e\uff1f\uff09<\/h2>\n<p>JPEG\u3084PNG\u306b\u6bd4\u3079\u308b\u3068DXTC\u306e\u5727\u7e2e\u7387\u306f\u4f4e\u3044\u3067\u3059\u3002\u305d\u306e\u4ee3\u308f\u308a\u3001DXTC\u306f\u753b\u50cf\u3092\u5727\u7e2e\u3057\u305f\u307e\u307eGPU\u306eVRAM\u306b\u7f6e\u3044\u3066\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u3001\u3068\u3044\u3046\u5927\u304d\u306a\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306b\u5bfe\u3057\u3066JPEG\u306a\u3069\u3067\u306f\u3001\u753b\u50cf\u3092\u7121\u5727\u7e2e\u72b6\u614b\u306b\u5c55\u958b\u3057\u306a\u3051\u308c\u3070GPU\u3067\u6271\u3048\u306a\u3044\u305f\u3081\u3001GPU\u3092\u4f7f\u3063\u30663D\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u306e\u30c6\u30af\u30b9\u30c1\u30e3\u3092\u8868\u793a\u3059\u308b\u5834\u5408\u3001DXTC\u306b\u6bd4\u3079\u3066VRAM\u5bb9\u91cf\u3084\u30e1\u30e2\u30ea\u30d0\u30f3\u30c9\u5e45(\u8ee2\u9001\u901f\u5ea6)\u3092\u591a\u304f\u4f7f\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<h2>DXTC\u306e\u5727\u7e2e\u54c1\u8cea\u306f\u3069\u3093\u306a\u611f\u3058\uff1f<\/h2>\n<p>DXTC\u3092\u4f7f\u3063\u3066\u753b\u50cf\u3092\u5727\u7e2e\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u30b5\u30f3\u30d7\u30eb\u3068\u3057\u3066\u300124\u30d3\u30c3\u30c8RGB\u30ab\u30e9\u30fc\u3067\u753b\u50cf\u30b5\u30a4\u30ba\u304c640\u00d7480\u306e\u753b\u50cf\u3092\u7528\u610f\u3057\u307e\u3057\u305f\u3002<br \/>\n\u305d\u308c\u305e\u308c\u306e\u753b\u50cf\u5bb9\u91cf\u306f\u3001\u7121\u5727\u7e2e\u3067 921,600 \u30d0\u30a4\u30c8\uff08\uff1d640\u00d7480\u00d73\uff09\u3067\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/flower_full.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4163\" title=\"flower_quarter\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/flower_quarter.png\" alt=\"flower_quarter\" width=\"160\" height=\"120\" \/><\/a>\u3000<a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/cat_full.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4165\" title=\"cat_quarter\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/cat_quarter.png\" alt=\"cat_quarter\" width=\"160\" height=\"120\" \/><\/a>\u3000<a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/renga_full.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4167\" title=\"renga_quarter\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/renga_quarter.png\" alt=\"renga_quarter\" width=\"160\" height=\"120\" \/><\/a><br \/>\n<strong>\u7121\u5727\u7e2e\u306e\u5143\u753b\u50cf\uff08\u5404 921,600 \u30d0\u30a4\u30c8\uff09<\/strong><br \/>\n<span style=\"font-size: 10px;\">\uff08\u30af\u30ea\u30c3\u30af\u3067\u7b49\u500d\u8868\u793a\uff09<\/span><\/p>\n<p>DXTC\u3067\u5727\u7e2e\u3057\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/flower_dxt1_full.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4185\" title=\"flower_dxt1_quarter\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/flower_dxt1_quarter.png\" alt=\"flower_dxt1_quarter\" width=\"160\" height=\"120\" \/><\/a>\u3000<a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/cat_dxt1_full.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4187\" title=\"cat_dxt1_quarter\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/cat_dxt1_quarter.png\" alt=\"cat_dxt1_quarter\" width=\"160\" height=\"120\" \/><\/a>\u3000<a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/renga_dxt1_full.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4189\" title=\"renga_dxt1_quarter\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/renga_dxt1_quarter.png\" alt=\"renga_dxt1_quarter\" width=\"160\" height=\"120\" \/><\/a><br \/>\n<strong>DXTC\u5727\u7e2e\u5f8c\u306e\u753b\u50cf\uff08\u5404 153,600 \u30d0\u30a4\u30c8\uff09<\/strong><br \/>\n<span style=\"font-size: 10px;\">\uff08\u30af\u30ea\u30c3\u30af\u3067\u7b49\u500d\u8868\u793a\uff09<\/span><\/p>\n<p>\u5727\u7e2e\u3059\u308b\u3068\u305d\u308c\u305e\u308c\u306e\u753b\u50cf\u5bb9\u91cf\u306f 153,600 \u30d0\u30a4\u30c8 \u3068\u306a\u308a\u3001<strong>\u5727\u7e2e\u524d\u306e6\u5206\u306e1<\/strong>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>DXTC\u306f\u5727\u7e2e\u3059\u308b\u3068\u753b\u50cf\u304c\u52a3\u5316\u3059\u308b\u3068\u66f8\u304d\u307e\u3057\u305f\u304c\u3001\u5727\u7e2e\u524d\u5f8c\u306e\u753b\u50cf\u3092\u6bd4\u8f03\u3057\u3066\u3044\u305f\u3060\u304f\u3068\u308f\u304b\u308b\u3088\u3046\u306b\u3001\u52a3\u5316\u306f\u304b\u306a\u308a\u6ce8\u610f\u3057\u3066\u898b\u306a\u3044\u3068\u308f\u304b\u308a\u307e\u305b\u3093\u3002<\/p>\n<p><span style=\"font-size: 9px;\">\u6ce8\uff09\u30d6\u30ed\u30b0\u5185\u306e\u753b\u50cf\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u3067\u305d\u306e\u307e\u307e\u8868\u793a\u3067\u304d\u308b\u3088\u3046\u306b\u5168\u3066PNG\u5f62\u5f0f\u306b\u5909\u63db\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u4e0a\u8a18\u753b\u50cf\u5bb9\u91cf\u3068\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u753b\u50cf\u306b\u3064\u3044\u3066\u3082\u540c\u69d8\u3067\u3059\u3002<\/span><\/p>\n<h2>DXTC\u306b\u306f\u82e6\u624b\u306a\u753b\u50cf\u304c\u3042\u308b\uff1f<\/h2>\n<p>\u4eca\u5ea6\u306f\u6b21\u306e\u3088\u3046\u306a\u753b\u50cf\u3092DXTC\u3067\u5727\u7e2e\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u4e0a\u306e3\u3064\u306e\u753b\u50cf\u3068\u306f\u9055\u3063\u3066\u30a2\u30cb\u30e1\u8abf\u306e\u753b\u50cf\u3067\u3059\u3002<\/p>\n<table style=\"width: 640px;\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>\n<p><div id=\"attachment_4191\" style=\"width: 266px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/magicgirl_org_three.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4191\" class=\"size-full wp-image-4191 wp-caption alignnone\" title=\"magicgirl_org\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/magicgirl_org.png\" alt=\"magicgirl_org\" width=\"256\" height=\"256\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/magicgirl_org.png 256w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/magicgirl_org-120x120.png 120w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a><p id=\"caption-attachment-4191\" class=\"wp-caption-text\">\u7121\u5727\u7e2e\u306e\u9b54\u6cd5\u5c11\u5973\u30a4\u30e9\u30b9\u30c8\uff08\u30af\u30ea\u30c3\u30af\u30673\u500d\u8868\u793a\uff09<\/p><\/div><\/td>\n<td>\n<p><div id=\"attachment_4193\" style=\"width: 266px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/magicgirl_dxt1_three.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4193\" class=\"size-full wp-image-4193 wp-caption alignnone\" title=\"magicgirl_dxt1_org\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/magicgirl_dxt1_org.png\" alt=\"magicgirl_dxt1_org\" width=\"256\" height=\"256\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/magicgirl_dxt1_org.png 256w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/magicgirl_dxt1_org-120x120.png 120w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a><p id=\"caption-attachment-4193\" class=\"wp-caption-text\">DXTC\u5727\u7e2e\u5f8c\u306e\u9b54\u6cd5\u5c11\u5973\u30a4\u30e9\u30b9\u30c8\uff08\u30af\u30ea\u30c3\u30af\u30673\u500d\u8868\u793a\uff09<\/p><\/div><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u30d1\u30c3\u3068\u898b\u305f\u611f\u3058\u306f\u7dba\u9e97\u306b\u5727\u7e2e\u3067\u304d\u3066\u3044\u308b\u6c17\u304c\u3059\u308b\u3093\u3067\u3059\u304c\u2026\u2026\u3001<\/p>\n<p>\u30ad\u30e3\u30e9\u30af\u30bf\u30fc\u306e\u8f2a\u90ed\u3042\u305f\u308a\u3092\u3088\u304f\u898b\u3066\u307f\u308b\u3068\uff08\u3053\u306e\u8fba\u3000<a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/magicgirl_dxt1_upscale_full.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4564\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/magicgirl_dxt1_upscale_half.png\" alt=\"magicgirl_dxt1_upscale_half\" width=\"150\" height=\"150\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/magicgirl_dxt1_upscale_half.png 150w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/magicgirl_dxt1_upscale_half-120x120.png 120w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\u3000\u3068\u304b\uff09\u3001\u8272\u304c\u306b\u3058\u3093\u3067\u3057\u307e\u3063\u3066\u3044\u308b\u306e\u304c\u308f\u304b\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u306fDXTC\u306b\u306f<strong>\u30a2\u30cb\u30e1\u8abf\u306e\u753b\u50cf\u3092\u5727\u7e2e\u3059\u308b\u3068\u753b\u50cf\u304c\u52a3\u5316\u3057\u3084\u3059\u3044<\/strong>\u3001\u3068\u3044\u3046\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u5199\u771f\u306e\u3088\u3046\u306a\u753b\u50cf\u3088\u308a\u3082\u30a2\u30cb\u30e1\u8abf\u306e\u753b\u50cf\u304c\u52a3\u5316\u3057\u3084\u3059\u3044\u306e\u306f\u3001DXTC\u306e\u4ed5\u7d44\u307f\u306b\u539f\u56e0\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>DXTC\u3063\u3066\u3069\u3093\u306a\u4ed5\u7d44\u307f\uff1f<\/h2>\n<p>\u305d\u308c\u3067\u306fDXTC\u5727\u7e2e\u306e\u4ed5\u7d44\u307f\u3092\u8aac\u660e\u3057\u307e\u3057\u3087\u3046\u3002<br \/>\n\u5727\u7e2e\u524d\u306e\u753b\u50cf\u3068\u3057\u3066\u4e0a\u3067\u8868\u793a\u3057\u305f\u753b\u50cf\uff08\u82b1\uff09\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<div id=\"attachment_4163\" style=\"width: 170px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/flower_full.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4163\" class=\"wp-image-4163 size-full\" title=\"flower_quarter\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/flower_quarter.png\" alt=\"flower_quarter\" width=\"160\" height=\"120\" \/><\/a><p id=\"caption-attachment-4163\" class=\"wp-caption-text\">\u82b1 \uff08\u30af\u30ea\u30c3\u30af\u3067\u7b49\u500d\u8868\u793a\uff09<\/p><\/div>\n<p>24\u30d3\u30c3\u30c8 RGB\u30ab\u30e9\u30fc\u3067\u753b\u50cf\u30b5\u30a4\u30ba\u304c640\u00d7480\u3001\u753b\u50cf\u5bb9\u91cf\u306f 921,600 \u30d0\u30a4\u30c8 \u306e\u753b\u50cf\u3067\u3059\u3002<\/p>\n<h3>\uff11\uff0e4\u00d74\u30d4\u30af\u30bb\u30eb\u306e\u30d6\u30ed\u30c3\u30af\u306b\u5206\u5272\u3059\u308b<\/h3>\n<p>DXTC\u3067\u306f\u3001<strong>4\u00d74\u30d4\u30af\u30bb\u30eb\u30921\u3064\u306e\u30d6\u30ed\u30c3\u30af<\/strong>\u3068\u3057\u3066\u3001\u30d6\u30ed\u30c3\u30af\u6bce\u306b\u305d\u308c\u305e\u308c\u72ec\u7acb\u3057\u3066\u5727\u7e2e\u51e6\u7406\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<div id=\"attachment_4437\" style=\"width: 525px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/upscale_full.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4437\" class=\"wp-image-4437 size-full\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/upscale_half.png\" alt=\"upscale_half\" width=\"515\" height=\"168\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/upscale_half.png 515w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/upscale_half-300x97.png 300w\" sizes=\"auto, (max-width: 515px) 100vw, 515px\" \/><\/a><p id=\"caption-attachment-4437\" class=\"wp-caption-text\">\u753b\u50cf\u3092\u62e1\u5927\u3057\u30661\u30d6\u30ed\u30c3\u30af\uff084\u00d74\u30d4\u30af\u30bb\u30eb\uff09\u53d6\u308a\u51fa\u3059<\/p><\/div>\n<h3>\uff12\uff0e\u4ee3\u8868\u8272\u30922\u8272\u9078\u3073\u3001\u305d\u308c\u3089\u306e\u4e2d\u9593\u8272\u30922\u8272\u3064\u304f\u308b<\/h3>\n<p>\u3055\u3066\u3001\u3053\u306e\uff11\u30d6\u30ed\u30c3\u30af\u306e\u305d\u308c\u305e\u308c\u306e\u30d4\u30af\u30bb\u30eb\u306b\u306f\u3001\u305d\u308c\u305e\u308c\u5225\u306e\u8272\u304c\u5165\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u3046\u3084\u3063\u3066\u62e1\u5927\u3059\u308b\u3068\u8272\u306e\u9055\u3044\u304c\u76ee\u306b\u898b\u3048\u308b\u5f62\u306b\u306a\u308b\u306e\u3067\u3059\u304c\u3001\u62e1\u5927\u524d\u306e\u753b\u50cf\u3092\u898b\u3066\u3053\u306e\u30d4\u30af\u30bb\u30eb\u6bce\u306e\u8272\u306e\u9055\u3044\u304c\u5206\u304b\u308b\u3088\u3046\u306a\u4eba\u306f\u307b\u3068\u3093\u3069\u3044\u306a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>DXTC\u5727\u7e2e\u3067\u306f\u3053\u306e<strong>\uff11\u30d6\u30ed\u30c3\u30af\uff0816\u30d4\u30af\u30bb\u30eb\uff09\u3092\uff14\u8272\u3067\u8868\u73fe<\/strong>\u3057\u307e\u3059\u3002<br \/>\n\u307e\u305a\u30d6\u30ed\u30c3\u30af\u306e\u4ee3\u8868\u8272\u3068\u306a\u308b2\u8272\u3092<strong>16\u30d3\u30c3\u30c8\u306eRGB\u30ab\u30e9\u30fc\uff08RGB565\uff09<\/strong>\u304b\u3089\u9078\u3073\u3001\u3053\u306e2\u8272\u304b\u3089\u4e2d\u9593\u8272\u3068\u306a\u308b2\u8272\u3092\u4f5c\u308a\u307e\u3059\u3002<\/p>\n<div id=\"attachment_4443\" style=\"width: 469px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/select_color_full.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4443\" class=\"wp-image-4443 size-full\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/select_color_half.png\" alt=\"select_color_half\" width=\"459\" height=\"166\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/select_color_half.png 459w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/select_color_half-300x108.png 300w\" sizes=\"auto, (max-width: 459px) 100vw, 459px\" \/><\/a><p id=\"caption-attachment-4443\" class=\"wp-caption-text\">\u4ee3\u8868\u8272\u3068\u4e2d\u9593\u8272<\/p><\/div>\n<p>\u4e2d\u9593\u8272\u3092\u751f\u6210\u3059\u308b\u306e\u306f\u60c5\u5831\u91cf\u3092\u6e1b\u3089\u3059\u305f\u3081\u3067\u3001\uff12\u8272\u5206\u306e\u60c5\u5831\u91cf\uff0816\u30d3\u30c3\u30c8 \u00d7 2\u8272 \uff1d 32\u30d3\u30c3\u30c8\uff09\u30674\u8272\u3092\u8868\u73fe\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3068\u304d\u3001<strong>\u4ee3\u8868\u8272C0\uff1eC1\u3068\u306a\u308b\u3088\u3046\u306b<\/strong>\u4ee3\u8868\u8272\u3092\u9078\u3093\u3067\u3044\u307e\u3059\u3002\uff08C0\u2266C1\u3068\u3057\u305f\u5834\u5408\u306b\u3064\u3044\u3066\u306f\u5f8c\u3067\u8aac\u660e\u3057\u307e\u3059\uff09<\/p>\n<p>\u3053\u306e4\u8272\u3092\u3069\u306e\u3088\u3046\u306b\u9078\u3076\u304b\u3001\u3068\u3044\u3046\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u3064\u3044\u3066\u306fDXTC\u3067\u306f\u898f\u5b9a\u3055\u308c\u3066\u304a\u3089\u305a\u3001\u5727\u7e2e\u30c4\u30fc\u30eb\u306b\u3088\u3063\u3066\u8272\u3005\u306a\u624b\u6cd5\u304c\u63a1\u3089\u308c\u3066\u3044\u307e\u3059\u3002<strong><a href=\"https:\/\/www.webtech.co.jp\/imesta\/ps3\/\">OPTPiX im\u00e9sta<\/a><\/strong>\u00a0\u3067\u306f\u3001\u72ec\u81ea\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u7528\u3044\u3001<strong>\u3088\u308a\u9ad8\u753b\u8cea\u306a\u5727\u7e2e<\/strong>\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\uff13\uff0e\u4ee3\u8868\u8272\u3068\u4e2d\u9593\u8272\u3092\u4f7f\u3063\u3066\u3001\u30d6\u30ed\u30c3\u30af\u5185\u306e\u8272\u3092\u7f6e\u304d\u63db\u3048\u308b<\/h3>\n<p>\u3053\u3046\u3057\u3066\u3067\u304d\u305f4\u8272\u3092\u4f7f\u3063\u3066<strong>\u30d6\u30ed\u30c3\u30af\u306e\u8272\u3092\u7f6e\u304d\u63db\u3048<\/strong>\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<div id=\"attachment_4447\" style=\"width: 352px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/color_replace_full.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4447\" class=\"wp-image-4447 size-full\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/color_replace_half.png\" alt=\"color_replace_half\" width=\"342\" height=\"190\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/color_replace_half.png 342w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/color_replace_half-300x166.png 300w\" sizes=\"auto, (max-width: 342px) 100vw, 342px\" \/><\/a><p id=\"caption-attachment-4447\" class=\"wp-caption-text\">\u4ee3\u8868\u8272\u3068\u4e2d\u9593\u8272\u3092\u4f7f\u3063\u3066\u8272\u3092\u7f6e\u304d\u63db\u3048\u308b<\/p><\/div>\n<p>\u5404\u30d4\u30af\u30bb\u30eb\u306e\u8272\u304c\u5909\u5316\u3057\u3066\u3044\u308b\u306e\u304c\u5206\u304b\u308b\u3067\u3057\u3087\u3046\u304b\uff1f\u30d6\u30ed\u30c3\u30af\u5185\u306e\u5168\u3066\u306e\u30d4\u30af\u30bb\u30eb\u304cC0~C3\u306e\u3069\u308c\u304b\u306e\u8272\u306b\u7f6e\u304d\u63db\u308f\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\uff14\uff0e\u30d6\u30ed\u30c3\u30af\u5185\u306e\u30d4\u30af\u30bb\u30eb\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4ed8\u3051\u308b<\/h3>\n<p>\u305d\u3057\u3066\u6700\u5f8c\u306b<strong>4\u8272\u306e\u3046\u3061\u3069\u306e\u8272\u3092\u4f7f\u3063\u305f\u306e\u304b\u3092\u5404\u30d4\u30af\u30bb\u30eb\u6bce\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u60c5\u5831\u3068\u3057\u3066\u8a18\u61b6<\/strong>\u3057\u3066\u3044\u304d\u307e\u3059\u3002<br \/>\n4\u8272\u304c\u533a\u5225\u3067\u304d\u308c\u3070\u3044\u3044\u306e\u3067\u30012\u30d3\u30c3\u30c8\uff0800,01,10,11\uff09\u3067\u8868\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<div id=\"attachment_4444\" style=\"width: 394px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/index_full.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4444\" class=\"wp-image-4444 size-full\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/index_half.png\" alt=\"index_half\" width=\"384\" height=\"126\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/index_half.png 384w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/index_half-300x98.png 300w\" sizes=\"auto, (max-width: 384px) 100vw, 384px\" \/><\/a><p id=\"caption-attachment-4444\" class=\"wp-caption-text\">\u5404\u8272\u306b\u5bfe\u3057\u3066\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4ed8\u3051\u308b<\/p><\/div>\n<h3>\uff15\uff0e\u5b8c\u6210\uff01<\/h3>\n<p>\u4ee5\u4e0a\uff11~\uff14\u306e\u51e6\u7406\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u5404\u30d6\u30ed\u30c3\u30af\u6bce\u306b\u4ee3\u8868\u82722\u8272\uff0816\u30d3\u30c3\u30c8 RGB\u30ab\u30e9\u30fc\uff09\u3068\u5404\u30d4\u30af\u30bb\u30eb\u306b\u4ed8\u3051\u305f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8a18\u61b6\u3057\u3066\u304a\u3051\u3070\u3001\u305d\u306e\u30d6\u30ed\u30c3\u30af\u3092\u518d\u73fe\u3067\u304d\u308b\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div id=\"attachment_4449\" style=\"width: 377px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/conclusion_full.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4449\" class=\"wp-image-4449 size-full\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/conclusion_half.png\" alt=\"conclusion_half\" width=\"367\" height=\"359\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/conclusion_half.png 367w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/conclusion_half-300x293.png 300w\" sizes=\"auto, (max-width: 367px) 100vw, 367px\" \/><\/a><p id=\"caption-attachment-4449\" class=\"wp-caption-text\">\u5727\u7e2e\u7d42\u4e86\uff01<\/p><\/div>\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u5727\u7e2e\u524d\u306e\u753b\u50cf\u3067\u306f\uff11\u30d6\u30ed\u30c3\u30af\u3092\u8868\u73fe\u3059\u308b\u305f\u3081\u306b\u3001\uff0816\u30d4\u30af\u30bb\u30eb\uff09\u00d7\uff0824\u30d3\u30c3\u30c8 RGB\u30ab\u30e9\u30fc\uff09 \uff1d 384 \u30d3\u30c3\u30c8 \uff1d <span style=\"text-decoration: underline;\"><strong>48 \u30d0\u30a4\u30c8<\/strong><\/span>\u304c\u5fc5\u8981\u3060\u3063\u305f\u306e\u306b\u5bfe\u3057\u3001<\/p>\n<p>\u5727\u7e2e\u5f8c\u306e\u753b\u50cf\u3067\u306f\uff11\u30d6\u30ed\u30c3\u30af\u3092\u8868\u73fe\u3059\u308b\u305f\u3081\u306b\u3001\uff0816\u30d4\u30af\u30bb\u30eb\uff09\u00d7\uff082\u30d3\u30c3\u30c8 \u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff09\uff0b\uff0816\u30d3\u30c3\u30c8 RGB\u30ab\u30e9\u30fc\uff09\u00d7\uff082\u8272\uff09 \uff1d 64 \u30d3\u30c3\u30c8 \uff1d <span style=\"text-decoration: underline;\"><strong>8 \u30d0\u30a4\u30c8<\/strong><\/span>\u3060\u3051\u3067\u5927\u4e08\u592b\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u5168\u4f53\u306e\u753b\u50cf\u5bb9\u91cf\u3082\u3000<span style=\"text-decoration: underline;\"><strong>921,600 \u30d0\u30a4\u30c8 \u2192 153,600 \u30d0\u30a4\u30c8\uff086\u5206\u306e1\uff09<\/strong><\/span>\u3000\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u7d50\u5c40\u3001\u306a\u3093\u3067\u30a2\u30cb\u30e1\u8abf\u306e\u753b\u50cf\u304c\u82e6\u624b\u306a\u306e\uff1f<\/h2>\n<p>\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u306d\u3002<br \/>\n\u4f8b\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306a1\u30d6\u30ed\u30c3\u30af\u306bDXTC\u5727\u7e2e\u3092\u3059\u308b\u3068\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<div id=\"attachment_4266\" style=\"width: 138px\" class=\"wp-caption aligncenter\"><a title=\"\" href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/01\/block_full.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4266\" class=\"wp-image-4266 size-full\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/block_quarter1.png\" alt=\"block_quarter\" width=\"128\" height=\"128\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/block_quarter1.png 128w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/block_quarter1-120x120.png 120w\" sizes=\"auto, (max-width: 128px) 100vw, 128px\" \/><\/a><p id=\"caption-attachment-4266\" class=\"wp-caption-text\">DXTC\u300c\u82e6\u624b\u306a\u30e4\u30c4\u3067\u3059\u300d<\/p><\/div>\n<p>\u3053\u306e\u3068\u304d\u3001\u3069\u306e\u3088\u3046\u306a\u4ee3\u8868\u82722\u8272\u3092\u9078\u3079\u3070\u3044\u3044\u306e\u3067\u3057\u3087\u3046\uff1f<br \/>\n\u3068\u308a\u3042\u3048\u305a\u3001\u30d6\u30ed\u30c3\u30af\u5185\u306b\u9ed2\u8272\u30fb\u6c34\u8272\u30fb\u8336\u8272\u306e3\u8272\u304c\u3042\u308b\u306e\u3067\u305d\u308c\u3089\u304b\u3089\u4ee3\u8868\u82722\u8272\u3092\u9078\u3093\u3067\u4e2d\u9593\u8272\u3092\u4f5c\u3063\u3066\u307f\u307e\u3059\u3002<\/p>\n<div id=\"attachment_4274\" style=\"width: 386px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/color_pair_full.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4274\" class=\"wp-image-4274 size-full\" title=\"color_pair_half\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/color_pair_half.png\" alt=\"color_pair_half\" width=\"376\" height=\"118\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/color_pair_half.png 376w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/color_pair_half-300x94.png 300w\" sizes=\"auto, (max-width: 376px) 100vw, 376px\" \/><\/a><p id=\"caption-attachment-4274\" class=\"wp-caption-text\">\u4ee3\u8868\u8272\u3092\u9078\u3093\u3067\u4e2d\u9593\u8272\u3092\u4f5c\u3063\u3066\u307f\u308b<\/p><\/div>\n<p>\u3069\u306e2\u8272\u3092\u9078\u3093\u3060\u3068\u3057\u3066\u3082\u3001\u305d\u306e2\u8272\u306e\u4e2d\u9593\u8272\u3067\u306f\u3082\u30461\u3064\u306e\u8272\u3092\u4f5c\u308a\u3060\u305b\u306a\u3044\u3067\u3059\u306d\u3002<br \/>\n\u5b9f\u306f\u3001\u3053\u306e1\u30d6\u30ed\u30c3\u30af\u306e\u753b\u50cf\u3092DXTC\u5727\u7e2e\u3059\u308b\u3068\u3001\u3053\u3093\u306a\u753b\u50cf\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<div id=\"attachment_4268\" style=\"width: 138px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/block_dxt1_full.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4268\" class=\"wp-image-4268 size-full\" title=\"block_dxt1_quarter\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/block_dxt1_quarter.png\" alt=\"block_dxt1_quarter\" width=\"128\" height=\"128\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/block_dxt1_quarter.png 128w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2012\/12\/block_dxt1_quarter-120x120.png 120w\" sizes=\"auto, (max-width: 128px) 100vw, 128px\" \/><\/a><p id=\"caption-attachment-4268\" 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100vw, 503px\" \/><\/a><p id=\"caption-attachment-4277\" class=\"wp-caption-text\">C0\u3068C1\u306e\u5927\u5c0f\u306b\u3088\u308b\u4e2d\u9593\u8272\u306e\u5909\u5316<\/p><\/div>\n<p>\u4e2d\u9593\u8272\u304c1\u8272\u306b\u306a\u308b\u304b\u308f\u308a\u306b\u3001<strong>\u900f\u904e\u8272\uff08\u03b1\uff1d0\uff09\u304c\u4f7f\u3048\u308b<\/strong>\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u3055\u3089\u306b\u7d9a\u304f\u2026<\/h2>\n<p>\u4eca\u56de\u306e\u89e3\u8aac\u306f\u3001\u5b9f\u306fDXTC\u306e\u4e2d\u306eDXT\uff11\u3068\u547c\u3070\u308c\u308b\u898f\u683c\u3067\u3001DXTC\u306b\u306fDXT\uff11\u306e\u4ed6\u306b DXT\uff12~DXT\uff15\u307e\u3067\u306e\u5408\u8a085\u3064\u306e\u898f\u683c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.webtech.co.jp\/blog\/optpix_labs\/format\/4569\/\">\u6b21\u56de<\/a>\u306fDXT\uff12~DXT\uff15\u306e\u89e3\u8aac\u8a18\u4e8b\u3092\u66f8\u3044\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p><a class=\"link\" href=\"https:\/\/www.webtech.co.jp\/blog\/optpix_labs\/format\/4569\/\">DXTC\uff08S3TC\uff09\u5727\u7e2e\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u306f\uff1f\uff5e\u5f8c\u7de8\uff5e<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u521d\u3081\u307e\u3057\u3066\u3001R&amp;D\u90e8 \u4e0a\u7530\u3068\u7533\u3057\u307e\u3059\u3002 \u300cOPTPiX Labs Blog\u300d\u306b\u306f\u521d\u767b\u5834\u3067\u3059\u3002\u4eca\u56de\u304b\u3089\u3001\u3088\u304f\u4f7f\u308f\u308c\u308b\u3044\u304f\u3064\u304b\u306e\u753b\u50cf\u5727\u7e2e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002 \u7b2c\u4e00\u56de\u76ee\u306fDXTC\uff08S3TC\uff09 &hellip; <a href=\"https:\/\/www.webtech.co.jp\/blog\/optpix_labs\/format\/4013\/\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":26,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[325],"tags":[364,608,363,267],"class_list":["post-4013","post","type-post","status-publish","format-standard","hentry","category-format","tag-364","tag-608","tag-363","tag-267"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>DXTC(S3TC)\u5727\u7e2e\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u306f\uff1f\uff5e\u524d\u7de8\uff5e - OPTPiX Labs Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.webtech.co.jp\/blog\/optpix_labs\/format\/4013\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta 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