{"id":3783,"date":"2022-10-01T06:35:06","date_gmt":"2022-09-30T21:35:06","guid":{"rendered":"https:\/\/alaki.co.jp\/blog\/?p=3783"},"modified":"2026-10-06T14:36:55","modified_gmt":"2026-10-06T05:36:55","slug":"three-js%e3%81%ae%e8%b2%a0%e8%8d%b7%e8%bb%bd%e6%b8%9b%e3%81%aetips","status":"publish","type":"post","link":"https:\/\/alaki.co.jp\/blog\/?p=3783","title":{"rendered":"Three.js\u306e\u8ca0\u8377\u8efd\u6e1b\u306eTips"},"content":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\uff01<br \/>\nXR\u30af\u30ea\u30a8\u30a4\u30bf\u30fc\u306e\u4f0a\u6771\u3067\u3059\u3002<\/p>\n<p>\u4eca\u79c1\u306f\u3001\u3042\u308b\u5b9f\u88c5\u3067\u3001Open Streat Map\u304b\u3089\u751f\u6210\u3057\u305f\u5927\u962a\u99c5\u4ed8\u8fd1\u306e3D\u30de\u30c3\u30d7\u3092Three.js\u306b\u8aad\u307f\u8fbc\u307f\u3001\u4e00\u4eba\u79f0\u8996\u70b9\u30673D\u30de\u30c3\u30d7\u306e\u4e2d\u3092\u3046\u308d\u3046\u308d\u3059\u308b\u3001\u3068\u3044\u3046\u697d\u3057\u3044\u3053\u3068\u3092\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/alaki.co.jp\/blog\/wp-content\/uploads\/2022\/10\/cbfb59e8d0b6ada4dbf7d2e5302cf56b.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-3788\" src=\"https:\/\/alaki.co.jp\/blog\/wp-content\/uploads\/2022\/10\/cbfb59e8d0b6ada4dbf7d2e5302cf56b-1024x499.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2022-10-01 6.05.06\" width=\"720\" height=\"351\" srcset=\"https:\/\/alaki.co.jp\/blog\/wp-content\/uploads\/2022\/10\/cbfb59e8d0b6ada4dbf7d2e5302cf56b-1024x499.png 1024w, https:\/\/alaki.co.jp\/blog\/wp-content\/uploads\/2022\/10\/cbfb59e8d0b6ada4dbf7d2e5302cf56b-300x146.png 300w, https:\/\/alaki.co.jp\/blog\/wp-content\/uploads\/2022\/10\/cbfb59e8d0b6ada4dbf7d2e5302cf56b-768x374.png 768w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/a><\/p>\n<p>3D\u30de\u30c3\u30d7\uff08obj\u30d5\u30a1\u30a4\u30eb\uff09\u306e\u5bb9\u91cf\u304c\u306a\u304b\u306a\u304b\u5927\u304d\u304f\u3001Three.js\u306e\u51dd\u3063\u305f\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3068\u639b\u3051\u5408\u308f\u305b\u308b\u3068\u304b\u306a\u308a\u52d5\u4f5c\u304c\u3082\u3063\u3055\u308a\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f\u3001\u8ca0\u8377\u304c\u5927\u304d\u304f\u306a\u308a\u304c\u3061\u306a\u5b9f\u88c5\u3092\u3059\u308b\u969b\u306b\u3001\u3069\u3046\u3084\u3063\u3066\u8ca0\u8377\u8efd\u6e1b\u3092\u3057\u3066\u5b89\u5b9a\u3057\u305f\u52d5\u4f5c\u3092\u5b9f\u73fe\u3059\u308b\u304b\u3068\u3044\u3046\u304a\u8a71\u3057\u3067\u3059\u3002<br \/>\n\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u4f8b\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002\u4eca\u5f8c\u3082\u65b0\u3057\u3044\u77e5\u898b\u304c\u3042\u308c\u3070\u3053\u3061\u3089\u306b\u8db3\u3057\u3066\u3044\u304d\u307e\u3059\u3002<br \/>\n\u3054\u53c2\u8003\u306b\u306a\u308c\u3070\u5e78\u3044\u3067\u3059\u3002<\/p>\n<p><!--more--><\/p>\n<h2>\u30a2\u30f3\u30c1\u30a8\u30a4\u30ea\u30a2\u30b9\u3092\u7121\u52b9\u306b\u3059\u308b<\/h2>\n<p>Three.js\u306erenderer\u306b\u306f\u3001\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u30a2\u30f3\u30c1\u30a8\u30a4\u30ea\u30a2\u30b9\u306e\u8a2d\u5b9a\u3092\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n\u901a\u5e38\u30013D\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u8f2a\u90ed\u304c\u30ae\u30b6\u30ae\u30b6\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u30a2\u30f3\u30c1\u30a8\u30a4\u30ea\u30a2\u30b9\u3092\u304b\u3051\u3066\u3042\u3052\u308b\u3068\u8f2a\u90ed\u306e\u898b\u3048\u65b9\u304c\u6ed1\u3089\u304b\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n\u512a\u308c\u305f\u6a5f\u80fd\u3067\u3059\u304c\u3001\u305d\u306e\u5206\u8a08\u7b97\u30b3\u30b9\u30c8\u3082\u5927\u304d\u304f\u3001\u30a2\u30f3\u30c1\u30a8\u30a4\u30ea\u30a2\u30b9\u3092\u7121\u52b9\u306b\u3057\u3066\u3042\u3052\u308b\u3068\u8ca0\u8377\u3082\u8efd\u6e1b\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306f\u30a2\u30f3\u30c1\u30a8\u30a4\u30ea\u30a2\u30b9\u304c\u7121\u52b9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u516c\u5f0f\u306e\u30b5\u30f3\u30d7\u30eb\u304b\u3089\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u6d41\u7528\u3057\u305f\u308a\u3057\u3066\u3044\u308b\u3068\u3001\u30a2\u30f3\u30c1\u30a8\u30a4\u30ea\u30a2\u30b9\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u3066\u3042\u3052\u308b\u3068\u7121\u52b9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">renderer = new THREE.WebGLRenderer( {\n\tantialias: false,\n} );<\/pre>\n<p>\u898b\u305f\u76ee\u306e\u826f\u3055\u3092\u3068\u308b\u304b\u3001\u8ca0\u8377\u8efd\u6e1b\u3092\u3068\u308b\u304b\u3001\u30a2\u30f3\u30c1\u30a8\u30a4\u30ea\u30a2\u30b9\u306e\u6709\u52b9\/\u7121\u52b9\u3092\u5207\u308a\u66ff\u3048\u3066\u307f\u3066\u3001\u3054\u691c\u8a0e\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2>\u30d5\u30ec\u30fc\u30e0\u30ec\u30fc\u30c8\u3092\u4e0b\u3052\u308b<\/h2>\n<p>\u30d5\u30ec\u30fc\u30e0\u30ec\u30fc\u30c8\u3001\u3044\u308f\u3086\u308bFPS\uff08Frame Per Second\uff09\u306e\u3053\u3068\u3067\u30011\u79d2\u9593\u306b\u4f55\u30d5\u30ec\u30fc\u30e0\u51e6\u7406\u3059\u308b\u304b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<br \/>\n\u203b\u5192\u982d\u306e\u4e00\u4eba\u79f0\u8996\u70b9 = FPS\uff08First Person Shooter\uff09\u3068\u3084\u3084\u3053\u3057\u3044\u3067\u3059\u306d<\/p>\n<p>\u7406\u60f3\u306f60fps\u3067\u3001\u8ca0\u8377\u306e\u7a0b\u5ea6\u3068\u30de\u30b7\u30f3\u30b9\u30da\u30c3\u30af\u3001PC\u306e\u4f7f\u7528\u72b6\u6cc1\u306b\u3088\u3063\u3066\u3001FPS\u306f\u4e0b\u304c\u3063\u3066\u884c\u3063\u305f\u308a\u3001\u307e\u305f60fps\u306b\u8fd1\u3065\u3044\u305f\u308a\u3057\u307e\u3059\u3002<br \/>\n\u4e0d\u5b89\u5b9a\u306b\u306a\u308b\u3068\u52d5\u4f5c\u304c\u4e0d\u5feb\u306a\u306e\u3067\u3001\u3042\u3048\u3066FPS\u3092\u4e0b\u3052\u305f\u72b6\u614b\u3067\u5b89\u5b9a\u3055\u305b\u308b\u30c6\u30af\u30cb\u30c3\u30af\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">let frame;\n\nfunction animate() {\n\trequestAnimationFrame( animate );\n\n  \t\/* \u30d5\u30ec\u30fc\u30e0\u6570\u3092\u30ab\u30a6\u30f3\u30c8 *\/\n  \tframe++;\n\n  \t\/* \u5076\u6570\u30d5\u30ec\u30fc\u30e0\u3092\u30b9\u30ad\u30c3\u30d7 *\/\n\tif (frame % 2 == 0) {\n\t\treturn;\n\t}\n}<\/pre>\n<p>\u203b\u3053\u3061\u3089\u3092\u53c2\u8003\u306b\u3055\u305b\u3066\u3044\u305f\u3060\u304d\u307e\u3057\u305f\uff01<a href=\"https:\/\/ics.media\/entry\/12930\/\" target=\"_blank\" rel=\"noopener\"><br \/>\nhttps:\/\/ics.media\/entry\/12930\/<\/a><\/p>\n<p>\u4e0a\u8a18\u306e\u4f8b\u3060\u3068\u3001\u901a\u5e38\u304c60fps\u3067\u3042\u308c\u3070\u300130fps\u3067\u52d5\u4f5c\u3055\u305b\u308b\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n\u79c1\u304c\u5b9f\u88c5\u3057\u3066\u3044\u308b\u30b1\u30fc\u30b9\u3067\u306f\u3001\u52d5\u4f5c\u306e\u8352\u3055\u306f\u305d\u3053\u307e\u3067\u76ee\u7acb\u305f\u305a\u3001\u30b9\u30c8\u30ec\u30b9\u306a\u304f\u52d5\u304b\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<h2>Camera\u306efar\u3092\u4e0b\u3052\u308b<\/h2>\n<p>Three.js\u306eCamera\u306e\u5024\u306b\u306f\u3001near\u3068far\u3068\u3044\u3046\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u5b58\u5728\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u6587\u5b57\u901a\u308a\u3001Camera\u304cScene\u3092\u5199\u3059\u3068\u304d\u3001near = \u3069\u3053\u307e\u3067\u8fd1\u304f\u306e\u3082\u306e\u307e\u3067\u5199\u305b\u308b\u304b\u3001far = \u3069\u3053\u307e\u3067\u9060\u304f\u306e\u3082\u306e\u307e\u3067\u5199\u305b\u308b\u304b\u3001\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>far\u306e\u5024\u3092\u5927\u304d\u304f\u3059\u308c\u3070\u3001\u305d\u308c\u3060\u3051\u305f\u304f\u3055\u3093\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u63cf\u753b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001\u8ca0\u8377\u3082\u5927\u304d\u304f\u306a\u308a\u307e\u3059\u3002<br \/>\nfar\u3092\u9069\u5207\u306b\u8abf\u6574\u3059\u308b\u3053\u3068\u3067\u3001\u8ca0\u8377\u3092\u8efd\u6e1b\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u306e\u300c100\u300d\u3068\u3044\u3046\u6700\u5f8c\u306e\u5f15\u6570\u304c\u3001far\u306b\u3042\u305f\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">camera = new THREE.PerspectiveCamera( 75, window.innerWidth \/ window.innerHeight, 1, 100 );<\/pre>\n<h2>PixelRatio\u3092\u56fa\u5b9a\u3059\u308b<\/h2>\n<p>PixelRatio\u3068\u306f\u3001Scene\u3092\u63cf\u753b\u3059\u308b\u6642\u306eCanvas\u306e\u300c\u89e3\u50cf\u5ea6\u300d\u306e\u3053\u3068\u3067\u3059\u3002<br \/>\n\u3069\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u3082\u6700\u5927\u306e\u89e3\u50cf\u5ea6\u3067\u63cf\u753b\u3057\u305f\u3044\u5834\u5408\u3001<span class=\"hljs-variable language_\">window<\/span>.<span class=\"hljs-property\">devicePixelRatio\u3068\u3044\u3046\u5024\u3092Renderer\u306b\u8a2d\u5b9a\u3057\u3066\u3001\u30c7\u30d0\u30a4\u30b9\u3054\u3068\u306b\u89e3\u50cf\u5ea6\u3092\u6700\u9069\u5316\u3057\u3066\u305f\u308a\u3057\u307e\u3059\u3002<br \/>\n<\/span><br \/>\n\u89e3\u50cf\u5ea6\u304c\u9ad8\u3051\u308c\u3070\u63cf\u753b\u30b3\u30b9\u30c8\u3082\u9ad8\u304f\u306a\u308a\u307e\u3059\u306e\u3067\u3001\u3069\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u3082\u4e00\u5f8b\u63cf\u753b\u9818\u57df\u306b\u5bfe\u3057\u30661\u500d\u306e\u89e3\u50cf\u5ea6\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u8ca0\u8377\u3092\u8efd\u6e1b\u3059\u308b\u65b9\u6cd5\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">renderer.setPixelRatio(1);<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\uff01 XR\u30af\u30ea\u30a8\u30a4\u30bf\u30fc\u306e\u4f0a\u6771\u3067\u3059\u3002 \u4eca\u79c1\u306f\u3001\u3042\u308b\u5b9f\u88c5\u3067\u3001Op&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":3788,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,21],"tags":[],"class_list":["post-3783","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vr","category-21"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u3053\u3093\u306b\u3061\u306f\uff01 XR\u30af\u30ea\u30a8\u30a4\u30bf\u30fc\u306e\u4f0a\u6771\u3067\u3059\u3002 \u4eca\u79c1\u306f\u3001\u3042\u308b\u5b9f\u88c5\u3067\u3001Open Streat Map\u304b\u3089\u751f\u6210\u3057\u305f\u5927\u962a\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"sumi\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/alaki.co.jp\/blog\/?p=3783\" \/>\n\t<meta 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