{"id":34002,"date":"2026-03-09T11:40:30","date_gmt":"2026-03-09T02:40:30","guid":{"rendered":"https:\/\/www.sciement.com\/tech-blog\/?p=34002"},"modified":"2026-03-09T11:48:11","modified_gmt":"2026-03-09T02:48:11","slug":"scenedepth","status":"publish","type":"post","link":"https:\/\/www.sciement.com\/tech-blog\/unreal-engine-5\/scenedepth\/","title":{"rendered":"[UE5]SceneDepth\u306e\u80cc\u666f\u306e\u5024\u306f\u304a\u305d\u3089\u304f100,000,000\uff08\u305f\u3060\u3057UE5.8\u4ee5\u964d\u306f\u5909\u308f\u308a\u305d\u3046\uff09"},"content":{"rendered":"\n

Unreal Engine\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u7d50\u679c\u3067\u7269\u4f53\u304c\u3042\u308b\u3068\u3053\u308d\u3068\u80cc\u666f\uff08\u4f55\u3082\u7121\u3044\u3068\u3053\u308d\uff09\u3068\u3092\u533a\u5225\u3057\u305f\u3044\u3053\u3068\u306f\u305d\u308c\u306a\u308a\u306b\u3042\u308b\u304b\u3068\u601d\u3044\u307e\u3059\u3002\u76f4\u611f\u7684\u306b\u306fSceneTexture\u306eOpacity\u304b\u306a\u3068\u601d\u3046\u308f\u3051\u3067\u3059\u304c\u3001\u3053\u308c\u306f\u901a\u5e38\u306f\u5168\u30660\u3067\u3001Subsurface materials\u306b\u5bfe\u3057\u3066\u306e\u307f\u5024\u304c\u4ee3\u5165\u3055\u308c\u308b\u3088\u3046\u3067\u3059\uff08\u53c2\u8003\uff1aOpacity mask always blacks<\/a>\uff09\u3002\u305f\u3060\u3001\u9065\u304b\u6614\u3001\u78ba\u304bUnreal Engine 4.10\u3042\u305f\u308a\u307e\u3067\u306f\u7269\u4f53\u304c\u5b58\u5728\u3059\u308b\u90e8\u5206\u306f1\u3001\u80cc\u666f\u306f0\u3067\u3001\u3044\u308f\u3086\u308b\u4e00\u822c\u7684\u306aOpacity Mask\u3060\u3063\u305f\u8a18\u61b6\u304c\u3042\u308a\uff08\u53c2\u8003\uff1aSceneTexture: Opacity is broken in 4.8<\/a>\uff09\u3069\u3053\u304b\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u4ed5\u69d8\u304c\u5909\u66f4\u3055\u308c\u305f\u306e\u3060\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\u305d\u306e\u305f\u3081\u73fe\u5728\u3067\u306f\u80cc\u666f\u3068\u305d\u308c\u4ee5\u5916\u3068\u3092\u533a\u5225\u3057\u305f\u3044\u5834\u5408\u306b\u306fCustom Stencil\u3092\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u4e00\u822c\u7684\u3067\u306f\u306a\u3044\u304b\u3068\u601d\u3046\u306e\u3067\u3059\u304c\u3001Custom Stencil\u306f\u7269\u4f53\u540c\u58eb\u306e\u524d\u5f8c\u95a2\u4fc2\u3092\u898b\u308b\u306a\u3069\u306e\u5225\u306e\u7528\u9014\u306b\u4f7f\u3044\u305f\u3044\u3001\u3068\u3044\u3046\u3088\u3046\u306a\u72b6\u6cc1\u3082\u591a\u3044\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\u305d\u3053\u3067\u751f\u6210AI\u3055\u3093\u306b\u805e\u304f\u3068\u3001WorldNormal\u304c(0, 0, 0)\u306e\u3068\u3053\u308d\u3092\u4f7f\u3046\u3068\u826f\u3044\u3068\u3044\u3046\u3088\u3046\u306a\u56de\u7b54\u304c\u8fd4\u3063\u3066\u304d\u307e\u3059\u304c\u3001Best Answer\u3067\u306f\u306a\u3044\u3088\u3046\u306a\u6c17\u304c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u6b21\u306b\u8003\u3048\u308b\u306e\u306fSceneDepth\u3067\u5341\u5206\u306b\u9060\u3044\u3068\u3053\u308d\u3092\u80cc\u666f\u3068\u898b\u306a\u3059\u3053\u3068\u304b\u3068\u601d\u3044\u307e\u3059\u304c\u3001SceneDepth\u3067\u7269\u4f53\u304c\u4f55\u3082\u7121\u3044\u3068\u3053\u308d\u306b\u306f\u3069\u306e\u5024\u304c\u5165\u3063\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f\u751f\u6210AI\u306b\u805e\u3044\u3066\u3082\u300cFar Clip Plane\u306e\u5024\u3092\u4f7f\u3048\u300d\u306a\u3069\u3001\u5b8c\u5168\u306b\u660e\u5f8c\u65e5\u306a\u56de\u7b54\u3057\u304b\u8fd4\u3063\u3066\u304d\u307e\u305b\u3093\uff08Unreal Engine\u3067\u306f\uff08\u304a\u305d\u3089\u304f\u2026\uff09Far Clip Plane\u306e\u6982\u5ff5\u304c\u7121\u3044\uff09\u3002<\/p>\n\n\n\n

\u306a\u306e\u3067\u3001Material Expression\u306eDebug\u30ce\u30fc\u30c9\u3067\u8abf\u3079\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u753b\u9762\u5de6\u4e0a\u306b\u7269\u4f53\u304c\u6765\u306a\u3044\u3088\u3046\u306b\u3057\u305f\u4e0a\u3067\u3001\u4e0a\u56f3\u306e\u3088\u3046\u306b(0, 0)\u306e\u3068\u3053\u308d\u306b\u5165\u3063\u3066\u3044\u308b\u5024\u3092DebugScalrValues\u30ce\u30fc\u30c9\u3092\u7528\u3044\u3066\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3068\u2026<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u610f\u5473\u4e0d\u672a\u660e\u306a\u5024\u304c\u8fd4\u3063\u3066\u304d\u307e\u3057\u305f\u2026\u3002MaximumNumberOfDigits\u3092\u5897\u3084\u3057\u3066\u307f\u3066\u3082\u540c\u3058\u6570\u5024\u3057\u304b\u8868\u793a\u3055\u308c\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u2026\u6841\u3042\u3075\u308c\uff1f\uff1f\uff1f
\u2026\u3067\u306fFloat\u306e2\u9032\u6570\u8868\u8a18\u3092\u76f4\u63a5\u8abf\u3079\u3066\u898b\u308b\u3068\u826f\u3044\u2026\u306e\u304b\u306a\uff1f\uff1f\u3068\u601d\u3044\u3001\u4eca\u5ea6\u306fDebugBinaryValues-Float\u30ce\u30fc\u30c9\u306b\u7e4b\u3044\u3067\u307f\u307e\u3057\u305f\u3002\u305f\u3060\u3001\u3053\u306eResult\u306fDebugScalarValues\u3068\u306f\u7570\u306a\u308aFloat3\u306e\u3088\u3046\u3067\u3001\u4e0b\u56f3\u306e\u3088\u3046\u306bMakeFloat4\u30ce\u30fc\u30c9\u3092\u631f\u3093\u3067\u304b\u3089\u3067\u306a\u3044\u3068\u63a5\u7d9a\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u7d50\u679c\u306f\u3053\u3046\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Float\u306e\u30d0\u30a4\u30ca\u30ea\u5024\u3063\u307d\u3044\u3082\u306e\u304c\u51fa\u3066\u304d\u307e\u3057\u305f\u3002float\u5024\u306e\u8868\u73fe\u65b9\u6cd5\u306f\u305f\u3076\u3093IEEE 754\u2026\u306e\u306f\u305a\u3001\u3068\u4e88\u60f3\u3057\u3001IEEE-754 Floating Point Converter<\/a>\u3067\u5909\u63db\u3057\u3066\u307f\u308b\u3068\u2026<\/p>\n\n\n\n

Binary Representation: 01001100101111101011110000100000
Decimal Representation: 100000000<\/strong>
Value actually stored in float: 100000000<\/strong><\/p>\n\n\n\n

\u3068\u3044\u3046\u3053\u3068\u3067\u3001100,000,000\u304c\u5165\u3063\u3066\u3044\u308b<\/strong>\u3063\u307d\u3044\uff1f\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u4e0b\u56f3\u306e\u3088\u3046\u306bSceneDepth\u304c100,000,000\u4ee5\u4e0a\u304b\u4ee5\u4e0b\u304b\u3067\u8272\u5206\u3051\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u7d50\u679c\u306f\u3053\u3046\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u51fa\u6765\u3066\u3044\u308b\uff01\u305f\u3060\u3001\u3053\u308c\u3060\u3051\u3067\u306f\u672c\u5f53\u306b100,000,000\u306a\u306e\u304b\u306f\u308f\u304b\u308a\u307e\u305b\u3093\u3002\u305d\u3053\u3067If\u30ce\u30fc\u30c9\u306eB\u306e\u5024\u3092\u3001100,000,000\u306e\u6b21\u306b\u5927\u304d\u306a\u6700\u3082\u5c0f\u3055\u3044\u5024100,000,008.0\uff08100,000,001\u306a\u3069\u306f\u30ce\u30fc\u30c9\u4e0a\u3067100,000,000\u306b\u4e38\u3081\u8fbc\u307e\u308c\u3066\u3057\u307e\u3044\u307e\u3057\u305f\uff09\u306b\u3059\u308b\u3068\u753b\u9762\u304c\u771f\u3063\u8d64\u306b\u306a\u308a\u307e\u3057\u305f\u3002
DebugScalrValues\u30ce\u30fc\u30c9\u5185\u306eMaterial Expressions\u3092\u9069\u5207\u306b\u4fee\u6b63\u3059\u308c\u3070\u6700\u521d\u304b\u3089\u6b63\u3057\u3044\u5024\u304c\u51fa\u305d\u3046\u3067\u3059\u304c\u3001\u8907\u96d1\u3067\u8ffd\u3048\u3066\u3044\u307e\u305b\u3093\u2026\u3002<\/p>\n\n\n\n

\u3069\u308c\u3060\u3051\u691c\u7d22\u3057\u3066\u3082\u3001\u751f\u6210AI\u306b\u805e\u3044\u3066\u3082100,000,000\u3068\u3044\u3046\u5024\u306f\u898b\u3064\u3051\u3089\u308c\u306a\u304b\u3063\u305f\u306e\u3067\u3059\u304c\u3001”SceneDepth 100000000″\u306a\u3069\u3067\u691c\u7d22\u3059\u308b\u3068\u3044\u304f\u3064\u304b\u51fa\u3066\u304d\u307e\u3057\u305f\uff08\u53c2\u8003\uff1aCustom Depth Value Outputs?<\/a>\uff09\u3002<\/p>\n\n\n\n

\u4e2d\u3067\u3082\u6c17\u306b\u306a\u308b\u306e\u306fCustom depth and large scenes<\/a>\u3068\u3044\u3046\u30d5\u30a9\u30fc\u30e9\u30e0\u30b9\u30ec\u30c3\u30c9\u3067\u306eEpicGames\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u65b9\u306e\u56de\u7b54\u3067\u3001SceneView.cpp\u306eCreateInvDeviceZToWorldZTransform()\u3067\u3053\u306e100,000,000\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u306a\u306e\u3067\u3059\u304c\u3001\u3053\u308c\u304cPixelDepth\u306e\u8a08\u7b97\u65b9\u6cd5\u3068\u7570\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u5927\u304d\u306a\u30b9\u30b1\u30fc\u30eb\u306e\u30b7\u30fc\u30f3\u3067PixelDepth\u3068SceneDepth (CustomDepth)\u3068\u3092\u7528\u3044\u305f\u8a08\u7b97\u304c\u7834\u7dbb\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n

\u3067\u3001\u30b9\u30ec\u30c3\u30c9\u3067\u7d39\u4ecb\u3055\u308c\u3066\u3044\u308b\u30ea\u30f3\u30af\u5148\u304c\u5207\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u6b63\u3057\u304f\u306f\u304a\u305d\u3089\u304f\u3053\u306eUE-335270 Custom Depth range is different than Pixel Depth range<\/a>\u3067\u3001\u3069\u3046\u3084\u3089Unreal Engine 5.8\u3067\u306f\u3053\u306e\u4ed5\u69d8\u304c\u4fee\u6b63\u3055\u308c\u308b<\/strong>\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n

\u2026\u306e\u3067\u3001SceneDepth\u3067\u4f55\u3082\u7121\u3044\u90e8\u5206\u306e\u5024\u304c100,000,000\u306a\u306e\u306fUnreal Engine 5.7\u307e\u3067\u306e\u3088\u3046\u3067\u30015.8\u4ee5\u964d\u306e\u5024\u306f\u6539\u3081\u3066\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u305d\u3046<\/strong>\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

Unreal Engine\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u7d50\u679c\u3067\u7269\u4f53\u304c\u3042\u308b\u3068\u3053\u308d\u3068\u80cc\u666f\uff08\u4f55\u3082\u7121\u3044\u3068\u3053\u308d\uff09\u3068\u3092\u533a\u5225\u3057\u305f\u3044\u3053\u3068\u306f\u305d\u308c\u306a\u308a\u306b\u3042\u308b\u304b\u3068\u601d\u3044\u307e\u3059\u3002\u76f4\u611f\u7684\u306b\u306fSceneTexture\u306eOpacity\u304b\u306a\u3068\u601d\u3046\u308f\u3051\u3067\u3059\u304c\u3001\u3053\u308c\u306f\u901a\u5e38\u306f\u5168 …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-34002","post","type-post","status-publish","format-standard","hentry","category-unreal-engine-5"],"_links":{"self":[{"href":"https:\/\/www.sciement.com\/tech-blog\/wp-json\/wp\/v2\/posts\/34002","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sciement.com\/tech-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sciement.com\/tech-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sciement.com\/tech-blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sciement.com\/tech-blog\/wp-json\/wp\/v2\/comments?post=34002"}],"version-history":[{"count":3,"href":"https:\/\/www.sciement.com\/tech-blog\/wp-json\/wp\/v2\/posts\/34002\/revisions"}],"predecessor-version":[{"id":34012,"href":"https:\/\/www.sciement.com\/tech-blog\/wp-json\/wp\/v2\/posts\/34002\/revisions\/34012"}],"wp:attachment":[{"href":"https:\/\/www.sciement.com\/tech-blog\/wp-json\/wp\/v2\/media?parent=34002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sciement.com\/tech-blog\/wp-json\/wp\/v2\/categories?post=34002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sciement.com\/tech-blog\/wp-json\/wp\/v2\/tags?post=34002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}