{"id":4408,"date":"2021-06-09T20:00:48","date_gmt":"2021-06-09T12:00:48","guid":{"rendered":"https:\/\/tao0.date\/?p=4408"},"modified":"2021-06-09T20:28:44","modified_gmt":"2021-06-09T12:28:44","slug":"shenmeshipbrcaizhi","status":"publish","type":"post","link":"https:\/\/tao0.date\/?p=4408","title":{"rendered":"\u4ec0\u4e48\u662fPBR\u6750\u8d28"},"content":{"rendered":"<p>PBR\u662fPhysically-Based Rendering\uff08\u57fa\u4e8e\u7269\u7406\u7684\u6e32\u67d3)\u7684\u7b80\u79f0\uff0c\u8fd9\u4e2a\u8bcd\u7684\u5b57\u9762\u610f\u601d\u5e76\u4e0d\u5bb9\u6613\u5f04\u61c2\uff0c\u5230\u5e95\u4ec0\u4e48\u662fPBR\u5462\uff1f\u672c\u6587\u4f5c\u8005Jeff Russell\u4e3a\u4f60\u4ecb\u7ecd\u4e00\u4e0bPBR\u7684\u57fa\u7840\u77e5\u8bc6\u4ee5\u53ca\u5b83\u4e0e\u5176\u4ed6\u6e32\u67d3\u624b\u6cd5\u7684\u533a\u522b\u4e4b\u5904\uff0c\u5168\u6587\u5e76\u4e0d\u6d89\u53ca\u4ec0\u4e48\u9ad8\u6df1\u7684\u7269\u7406\u5de5\u7a0b\u6982\u5ff5\u548c\u6570\u5b66\u516c\u5f0f\u3002<\/p>\n<p>\u8ba9PBR\u6750\u8d28\u6d41\u533a\u522b\u4e0e\u5176\u4ed6\u624b\u6cd5\u7684\u91cd\u8981\u4e00\u70b9\u662f\u5149\u5bf9\u8868\u9762\u9020\u6210\u7684\u7ec6\u817b\u6548\u679c\uff0c\u5b83\u6709\u7740\u66f4\u4e3a\u51c6\u786e\u7684\u6a21\u62df\uff0c\u800c\u4e14\u540c\u65f6\u4e0d\u5931\u4e00\u5b9a\u7684\u827a\u672f\u611f\u3002\u8ba9\u6211\u4eec\u4ece\u6700\u57fa\u7840\u7684\u6982\u5ff5\u8bf4\u8d77\uff1a<\/p>\n<p>\u6f2b\u5c04\u4e0e\u53cd\u5c04<br \/>\n\u8fd9\u662f\u4e24\u4e2a\u6750\u8d28\u5236\u4f5c\u91cc\u6700\u57fa\u672c\u7684\u6982\u5ff5\uff0c\u662f\u5149\u4e0e\u8868\u9762\u6700\u57fa\u7840\u7684\u76f8\u4e92\u4f5c\u7528\uff0c\u5f88\u591a\u4eba\u90fd\u77e5\u9053\u8fd9\u4e00\u70b9\uff0c\u4f46\u4e0d\u4e00\u5b9a\u77e5\u9053\u5728\u7269\u7406\u5c42\u9762\u4e0a\u5230\u5e95\u662f\u4ec0\u4e48\u3002<\/p>\n<p>\u5f53\u4e00\u675f\u5149\u7167\u5c04\u5230\u4e00\u4e2a\u8868\u9762\uff0c\u6709\u4e9b\u5149\u4f1a\u88ab\u53cd\u5c04\uff0c\u5373\u4ece\u7269\u4f53\u8868\u9762\u6cbf\u7740\u6cd5\u7ebf\u53cd\u65b9\u5411\u5f39\u5c04\u56de\u53bb\u3002\u8fd9\u4e00\u8fc7\u7a0b\u548c\u4e00\u4e2a\u7403\u6253\u5728\u4e86\u5899\u4e0a\u6216\u5730\u4e0a\u53cd\u5f39\u56de\u53bb\u5dee\u4e0d\u591a\u3002\u5728\u4e00\u4e2a\u5149\u6ed1\u7684\u8868\u9762\u4e0a\uff0c\u8fd9\u4f1a\u4ea7\u751f\u4e00\u79cd\u955c\u9762\u6548\u679c\u3002<\/p>\n<p>\u4e5f\u4e0d\u662f\u6240\u6709\u7684\u5149\u90fd\u88ab\u7269\u4f53\u8868\u9762\u53cd\u5f39\u56de\u53bb\uff0c\u6709\u4e9b\u4f1a\u88ab\u7269\u4f53\u8868\u9762\u5438\u6536\uff0c\u6216\u8005\u6563\u5c04\u8fdb\u4e86\u7269\u4f53\u5185\u90e8\uff0c\u6709\u4e9b\u6563\u5c04\u8fdb\u53bb\u7684\u5149\u53c8\u4f1a\u4ece\u540e\u9762\u518d\u6b21\u7a7f\u51fa\u53bb\uff0c\u518d\u6b21\u88ab\u773c\u775b\u6216\u76f8\u673a\u6355\u6349\u5230\u3002<\/p>\n<p><img decoding=\"async\" title=\"\u70b9\u51fb\u67e5\u770b\u539f\u56fe\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/efab4-6369032157239337638822742.png\" alt=\"01.png\" \/><br \/>\n\u5149\u7684\u8fd9\u79cd\u88ab\u7269\u4f53\u8868\u9762\u5438\u6536\u548c\u6563\u5c04\u56e0\u5149\u7684\u4e0d\u540c\u6ce2\u957f\u800c\u4e0d\u540c\uff0c\u4e5f\u5373\u989c\u8272\u7684\u4e0d\u540c\u800c\u4e0d\u540c\u3002\u7531\u4e8e\u8fd9\u79cd\u6563\u5c04\u6781\u4e3a\u4e0d\u89c4\u5219\uff0c\u6240\u4ee5\u770b\u8d77\u6765\u7ed9\u4eba\u611f\u89c9\u662f\u6765\u81ea\u5404\u4e2a\u65b9\u5411\u3002\u8fd9\u548c\u955c\u9762\u6548\u679c\u5f88\u4e0d\u540c\uff01\u8981\u5728\u6750\u8d28\u91cc\u6a21\u62df\u8fd9\u79cd\u6548\u679c\uff0c\u53ef\u4ee5\u901a\u8fc7\u5b9a\u4e49\u4e00\u4e2a\u6f2b\u5c04\u989c\u8272\u6765\u505a\u5230\u3002<\/p>\n<p>\u534a\u900f\u4e0e\u900f\u660e<br \/>\n\u4f46\u6709\u4e9b\u6f2b\u5c04\u5f88\u590d\u6742\uff0c\u6bd4\u5982\u76ae\u80a4\u548c\u8721\u70db\u7684\u8868\u9762\uff0c\u7b80\u5355\u7684\u5b9a\u4e49\u4e00\u4e2a\u6f2b\u5c04\u989c\u8272\u662f\u4e0d\u591f\u7684\uff0c\u8fd8\u9700\u8981\u8003\u8651\u6750\u8d28\u7684\u539a\u5ea6\u548c\u5f62\u72b6\u3002\u5982\u679c\u7269\u4f53\u672c\u8eab\u5f88\u8584\uff0c\u90a3\u4e48\u5c31\u5e94\u8be5\u80fd\u770b\u5230\u900f\u660e\u6548\u679c\u3002\u8fd9\u65f6\u5c31\u9700\u8981\u7279\u6b8a\u6750\u8d28\u624d\u80fd\u6a21\u62df\u4e86\u3002<\/p>\n<p>\u80fd\u91cf\u5b88\u6052\uff08\u4e00\uff09<br \/>\n\u901a\u8fc7\u4ee5\u4e0a\u5bf9\u53cd\u5c04\u548c\u6f2b\u5c04\u7684\u63cf\u8ff0\uff0c\u6211\u4eec\u4e0d\u96be\u5f97\u51fa\u4e00\u4e2a\u7ed3\u8bba\uff1a\u6f2b\u5c04\u548c\u53cd\u5c04\u662f\u4e92\u65a5\u7684\u3002\u4e3a\u4e86\u80fd\u770b\u5230\u6f2b\u5c04\u989c\u8272\uff0c\u5149\u5fc5\u987b\u5148\u7a7f\u8fc7\u8868\u9762\uff0c\u6216\u8005\u8bf4\u6ca1\u80fd\u88ab\u8868\u9762\u53cd\u5c04\u56de\u53bb\u3002\u90a3\u4e48\u6839\u636e\u80fd\u91cf\u5b88\u6052\u6cd5\u5219\uff0c\u5c31\u51fa\u73b0\u8fd9\u6837\u7684\u60c5\u51b5\uff1a\u8d8a\u662f\u53cd\u5c04\u5f3a\u70c8\u7684\u8868\u9762\uff0c\u5176\u6f2b\u5c04\u8d8a\u662f\u5f31\uff08\u6697\uff09\uff0c\u56e0\u4e3a\u6ca1\u6709\u90a3\u4e48\u591a\u7684\u5149\u7a7f\u8fc7\u53bb\uff0c\u5927\u90e8\u5206\u90fd\u88ab\u53cd\u5c04\u56de\u53bb\u4e86\u3002\u4e00\u4e2a\u8868\u9762\u5f88\u660e\u4eae\u7684\u7269\u4f53\u5b83\u4e0d\u53ef\u80fd\u6709\u5f88\u5f3a\u7684\u53cd\u5c04\u3002<\/p>\n<p><img decoding=\"async\" title=\"\u70b9\u51fb\u67e5\u770b\u539f\u56fe\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/bf8d3-6369032158373459631393348.png\" alt=\"02.png\" \/><\/p>\n<p>\u80fd\u91cf\u5b88\u6052\u662fPBR\u6750\u8d28\u6d41\u7684\u57fa\u7840\uff0c\u8981\u505a\u51fa\u81ea\u7136\u903c\u771f\u7684\u6750\u8d28\u6765\uff0c\u4e0d\u53ef\u4ee5\u65e0\u89c6\u8fd9\u4e2a\u89c4\u5219\u3002<\/p>\n<p>\u91d1\u5c5e<br \/>\n\u5bfc\u7535\u4f53\uff0c\u6bd4\u5982\u91d1\u5c5e\u6750\u8d28\u8981\u7279\u522b\u5355\u72ec\u62ff\u51fa\u6765\u8bb2\u4e00\u4e0b\u3002\u56e0\u4e3a\uff1a<br \/>\n\u9996\u5148\uff0c\u5b83\u4eec\u6bd4\u7edd\u7f18\u4f53\u7684\u8868\u9762\u66f4\u52a0\u5177\u6709\u53cd\u5c04\u6548\u679c\uff0c\u5b83\u4eec\u7684\u53cd\u5c04\u7387\u9ad8\u8fbe60-90%\uff0c\u800c\u7edd\u7f18\u4f53\u53ea\u67090-20%\u3002\u9ad8\u53cd\u5c04\u7387\u8ba9\u5149\u65e0\u6cd5\u7a7f\u8fc7\u8868\u9762\u8fdb\u5165\u7269\u4f53\u5185\u90e8\uff0c\u4ece\u800c\u4ea7\u751f\u4e86\u95ea\u5149\u7684\u8d28\u611f\u3002<\/p>\n<p>\u5176\u6b21\uff0c\u91d1\u5c5e\u7684\u53cd\u5c04\u6548\u679c\u8fd8\u4f1a\u968f\u7740\u5149\u8c31\u800c\u4e0d\u540c\uff0c\u8fd9\u5c31\u662f\u8bf4\uff0c\u91d1\u5c5e\u7684\u53cd\u5c04\u662f\u5e26\u6709\u989c\u8272\u7684\uff0c\u800c\u4e14\u5f88\u4e0d\u5747\u5300\uff0c\u6bd4\u5982\u91d1\uff0c\u94dc\u7b49\u3002\u800c\u7edd\u7f18\u4f53\u7684\u53cd\u5c04\u662f\u65e0\u8272\u7684\u3002<\/p>\n<p>\u6700\u540e\uff0c\u7a7f\u8fc7\u5bfc\u7535\u4f53\u8868\u9762\u7684\u5149\u6700\u540e\u5927\u90e8\u5206\u4e5f\u4f1a\u88ab\u5438\u6536\u800c\u4e0d\u662f\u88ab\u6563\u5c04\u51fa\u53bb\uff0c\u8fd9\u65e2\u662f\u8bf4\uff0c\u7406\u8bba\u4e0a\u5bfc\u7535\u4f53\u662f\u6ca1\u6709\u6f2b\u5c04\u989c\u8272\u7684\u3002<\/p>\n<p>\u83f2\u6d85\u5c14<br \/>\n\u5965\u53e4\u65af\u6c40-\u8ba9\u00b7\u83f2\u6d85\u5c14\uff0c\u8fd9\u4e2a\u4eba\u7684\u540d\u5b57\u662f\u7edd\u5bf9\u4e0d\u53ef\u80fd\u88ab\u9057\u5fd8\u7684\uff0c\u56e0\u4e3a\u4ed6\u7684\u540d\u5b57\u548c\u53cd\u5c04\u73b0\u8c61\u7ed3\u5408\u5230\u4e86\u4e00\u8d77\u53bb\uff0c\u4e0d\u8bf4\u4ed6\u7684\u540d\u5b57\u8c08\u53cd\u5c04\u51e0\u4e4e\u4e0d\u53ef\u80fd\u3002<\/p>\n<p>\u5728CG\u91cc\uff0c\u83f2\u6d85\u5c14\u4ee3\u8868\u4e86\u53cd\u5c04\u6548\u679c\u56e0\u89c2\u5bdf\u89d2\u5ea6\u7684\u4e0d\u540c\u800c\u4e0d\u540c\uff0c\u4e5f\u5373\u662f\u7269\u4f53\u8fb9\u7f18\u7684\u53cd\u5c04\u6548\u679c\u4f1a\u66f4\u52a0\u660e\u4eae\u3002PBR\u6750\u8d28\u6d41\u5728\u8fd9\u4e2a\u6548\u679c\u4e0a\u6709\u51e0\u4e2a\u7279\u8272\uff1a<\/p>\n<p>\u9996\u5148\uff0c\u5bf9\u4e8e\u6240\u6709\u7684\u6750\u8d28\u6765\u8bf4\uff0c\u53cd\u5c04\u6548\u679c\u5728\u63a5\u8fd10\u5ea6\u89d2\u65f6\u6700\u660e\u663e\uff0c\u5c31\u50cf\u955c\u9762\u53cd\u5c04\u4e00\u6837\uff0c\u4e0d\u7ba1\u662f\u4ec0\u4e48\u6750\u8d28\u90fd\u662f\u5982\u6b64\u3002\u53ea\u8981\u8db3\u591f\u5149\u6ed1\u80fd\u4ea7\u751f\u53cd\u5c04\uff0c\u90a3\u4e48\u4e00\u5b9a\u80fd\u5728\u67d0\u4e00\u4e2a\u89d2\u5ea6\u89c2\u5bdf\u65f6\uff0c\u770b\u5230\u5b8c\u7f8e\u7684\u955c\u9762\u53cd\u5c04\u6548\u679c\uff01\u8fd9\u542c\u8d77\u6765\u6709\u70b9\u7384\u4e4e\uff0c\u4f46\u8fd9\u5c31\u662f\u7269\u7406\u3002<\/p>\n<p>\u5176\u6b21\uff0c\u8fd9\u79cd\u53cd\u5c04\u6548\u679c\u7684\u53d8\u5316\u968f\u7740\u6750\u8d28\u7684\u4e0d\u540c\u800c\u6709\u6240\u4e0d\u540c\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img decoding=\"async\" title=\"03.png\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/27de3-6369032159485741581962421.png\" alt=\"03.png\" \/><\/p>\n<p>\u8fd9\u4e2a\u56fe\u7684\u610f\u601d\u662f\u5728\u8bf4\uff1a\u5728\u6a21\u62df\u771f\u5b9e\u6750\u8d28\u65f6\uff0c\u53cd\u5c04\u6548\u679c\u5fc5\u987b\u8981\u7a0d\u5fae\u6709\u4e9b\u6536\u655b\uff0c\u81f3\u5c11\u8981\u5728\u9700\u8981\u5f31\u7684\u5730\u65b9\u5f31\u4e0b\u6765\u3002\u8fd9\u5e76\u4e0d\u96be\u505a\u5230\uff0c\u800c\u4e14\u73b0\u5728\u7684\u6750\u8d28\u7cfb\u7edf\u90fd\u80fd\u81ea\u5e26\u8fd9\u79cd\u83f2\u5c3c\u5c14\u6548\u679c\u4e86\u3002PBR\u6750\u8d28\u6d41\u662f\u53ef\u4ee5\u5e26\u51fa\u4e9b\u827a\u672f\u5904\u7406\u7684\uff0c\u5728\u505a\u51fa\u57fa\u7840\u53cd\u5c04\u6548\u679c\u540e\uff0c\u4f60\u53ef\u4ee5\u518d\u6dfb\u52a0\u4e00\u4e9b\u5b8c\u5168\u53cd\u5c04\u7684\u5c0f\u5c40\u90e8\u505a\u70b9\u7f00\u3002<\/p>\n<p>\u5fae\u8868\u9762<br \/>\n\u4e0a\u9762\u90fd\u662f\u57fa\u4e8e\u7269\u4f53\u8868\u9762\u8bf4\u7684\u4e1c\u897f\uff0c\u6216\u8005\u8bf4\u662f\u7269\u4f53\u80fd\u88ab\u6e32\u67d3\u51fa\u6765\u7684\u6548\u679c\u3002\u4f46\u7269\u4f53\u8868\u9762\u5e76\u975e\u5b8c\u7f8e\u65e0\u7455\uff0c\u5c0f\u51f9\u75d5\uff0c\u88c2\u7eb9\uff0c\u51f9\u51f8\uff0c\u8fd9\u4e9b\u65e0\u6cd5\u88ab\u773c\u775b\u770b\u5230\uff0c\u4e5f\u65e0\u6cd5\u5728\u6cd5\u7ebf\u8d34\u56fe\u91cc\u88ab\u4f53\u73b0\u51fa\u6765\u7684\u5fae\u5c0f\u7ec6\u8282\uff0c\u786e\u5b9e\u5de6\u53f3\u6f2b\u5c04\u548c\u53cd\u5c04\u6548\u679c\u7684\u771f\u6b63\u56e0\u7d20\u3002<\/p>\n<p><img decoding=\"async\" title=\"04.png\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/923ff-6369032160821103922455437.png\" alt=\"04.png\" \/><\/p>\n<p>\u4e0a\u56fe\u4e2d\uff0c\u5e73\u884c\u7167\u5c04\u5230\u7269\u4f53\u8868\u9762\u7684\u4e09\u9053\u5149\u7ebf\u88ab\u53cd\u5c04\u5230\u4e0d\u540c\u7684\u65b9\u5411\u4e0a\u53bb\u4e86\uff0c\u56e0\u4e3a\u5b83\u4eec\u6240\u7167\u5230\u7684\u7269\u4f53\u8868\u9762\u5177\u6709\u4e0d\u540c\u7684\u65b9\u5411\uff0c\u4f7f\u5f97\u8fd9\u79cd\u53cd\u5c04\u7684\u89d2\u5ea6\u53d8\u5f97\u4e0d\u53ef\u9884\u6d4b\uff0c\u8fd9\u5c31\u4ea7\u751f\u4e86\u6a21\u7cca\u53cd\u5c04\u6548\u679c\u3002<\/p>\n<p>\u4f46\u8981\u4ece\u7269\u7406\u7ea7\u522b\u4e0a\u6a21\u62df\u51fa\u8fd9\u79cd\u65e0\u89c4\u5219\u7684\u53cd\u5c04\u9700\u8981\u5927\u91cf\u7684\u5185\u5b58\u548c\u8ba1\u7b97\u91cf\uff0c\u5728CG\u91cc\u53ea\u80fd\u5927\u6982\u6a21\u62df\u4e00\u4e2a\u6574\u4f53\u6548\u679c\uff0c\u6211\u4eec\u4e00\u822c\u53eb\u53cd\u5c04\u5149\u6cfd\u5ea6\u6216\u53cd\u5c04\u6a21\u7cca\u5ea6\u3002<\/p>\n<p>\u8fd9\u662f\u6750\u8d28\u5236\u4f5c\u91cc\u4e00\u4e2a\u91cd\u8981\u7684\u90e8\u5206\uff0c\u56e0\u4e3a\u771f\u5b9e\u4e16\u754c\u91cc\u5230\u5904\u5145\u6ee1\u4e86\u8fd9\u79cd\u6a21\u7cca\u53cd\u5c04\u6548\u679c\u3002<\/p>\n<p>\u80fd\u91cf\u5b88\u6052\uff08\u4e8c\uff09<br \/>\n\u73b0\u5728\u6e32\u67d3\u5668\u90fd\u6709\u4e86\u8fd9\u79cd\u865a\u62df\u7684\u6a21\u7cca\u53cd\u5c04\u7684\u6a21\u62df\uff0c\u6b63\u786e\u7684\u53c2\u6570\u80fd\u8ba9\u6548\u679c\u66f4\u52a0\u903c\u771f\uff0c\u6bd4\u5982\u7c97\u7cd9\u7684\u8868\u9762\u4f1a\u4ea7\u751f\u66f4\u5927\u66f4\u67d4\u548c\u7684\u9ad8\u5149\u533a\uff0c\u8bf7\u770b\u4e0b\u56fe\uff1a<\/p>\n<p><img decoding=\"async\" title=\"\u70b9\u51fb\u67e5\u770b\u539f\u56fe\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/70f54-6369032161855385747450216.png\" alt=\"05.png\" \/><\/p>\n<p>\u56fe\u4e2d\u7684\u5c0f\u7403\u5177\u6709\u76f8\u540c\u7684\u53cd\u5c04\u5f3a\u5ea6\uff0c\u4f46\u56e0\u4e3a\u4e0d\u540c\u7684\u53cd\u5c04\u6a21\u7cca\u5ea6\u800c\u8868\u73b0\u51fa\u4e0d\u540c\u7684\u8d28\u611f\uff0c\u9ad8\u5149\u968f\u7740\u5149\u6ed1\u5ea6\u8d8a\u6765\u8d8a\u6e05\u6670\u660e\u4eae\u3002\u8fd9\u53c8\u662f\u80fd\u91cf\u5b88\u6052\u7684\u6cd5\u5219\u4f53\u73b0\u4e4b\u4e00\u3002<\/p>\n<p>\u5fae\u8868\u9762\u53cd\u5c04\u4e5f\u540c\u6837\u9075\u5b88\u83f2\u6d85\u5c14\u6548\u679c<\/p>\n<p><img decoding=\"async\" title=\"\u70b9\u51fb\u67e5\u770b\u539f\u56fe\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/4232b-6369032162994187744034914.png\" alt=\"06.png\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>PBR\u6750\u8d28\u4f3c\u4e4e\u5728\u4e00\u591c\u4e4b\u95f4\u6539\u53d8\u4e86\u4eba\u4eec\u5bf9\u4e8e\u5f15\u64ce\u5b9e\u65f6\u6e32\u67d3\u753b\u9762\u7684\u7406\u89e3\u3002\u5728\u6e38\u620f\u4e2d\u6211\u4eec\u4e5f\u80fd\u591f\u4f53\u9a8c\u5230\u9508\u8680\u7684\u91d1\u5c5e\uff0c\u539a\u91cd\u7684\u76ae\u9769\uff0c\u7cbe\u7ec6\u7684\u7eb9\u7406\uff0c\u66f4\u52a0\u771f\u5b9e\u7684\u4e16\u754c\u4ece\u6b64\u5c55\u73b0\u5728\u773c\u524d\u3002\u4ece\u6b64\uff0cPBR\u6750\u8d28\u6210\u4e3a\u4e86\u201c\u6b21\u65f6\u4ee3\u201d\u6e38\u620f\u5fc5\u5907\u7684\u6807\u51c6\u3002<\/p>\n<p>\u5728GDCC2015\uff0c\u6765\u81eaEpic Games\u8d44\u6df1\u5f00\u53d1\u8005\u652f\u6301\u7f8e\u672f\u8bbe\u8ba1\u5e08\u674e\u6587\u78ca\uff0c\u4e3a\u5927\u5bb6\u5e26\u6765\u5e94\u7528\u4e8e\u865a\u5e7b\u5f15\u64ce4\u8d34\u56fe\u548c\u6750\u8d28\u521b\u5efa\u7684\u542f\u793a\u3002<\/p>\n<p>\u4ee5\u4e0b\u5185\u5bb9\u662f\u6f14\u8bb2\u5b9e\u5f55:<\/p>\n<p>PBR\u662f\u4e2a\u4e0d\u8001\u4e0d\u65b0\u7684\u8bdd\u9898\uff0c\u5f88\u65e9\u5b83\u5c31\u51fa\u73b0\u5728\u9884\u6e32\u67d3\u7684\u6e32\u67d3\u5668\u91cc\uff0c\u968f\u7740\u786c\u4ef6\u8d8a\u6765\u8d8a\u5feb\uff0c\u5c24\u5176\u662f\u663e\u5361\uff0c\u6700\u8fd1\u51e0\u5e74\u9010\u6e10\u7684\u5f00\u59cb\u5e94\u7528\u5230\u5b9e\u65f6\u6e32\u67d3\u4e2d\u6765\u3002<\/p>\n<p>\u4eca\u5929\u5c31\u548c\u5927\u5bb6\u4e00\u8d77\u6765\u804a\u804a\u865a\u5e7b\u5f15\u64ce\u5b9e\u65f6\u6e32\u67d3\u5f15\u5165PBR\u4ee5\u540e\uff0c\u6211\u4eec\u600e\u4e48\u6765\u6b63\u786e\u7684\u4f7f\u7528\u5b83<\/p>\n<p>PBR\u5373\u57fa\u4e8e\u7269\u7406\u7684\u6e32\u67d3\uff0c\u6e32\u67d3\u5305\u62ec\u706f\u5149\uff0cshader, \u6750\u8d28\uff0c \u8d34\u56fe\uff0c\u4ee5\u53ca\u4ed6\u4eec\u4e4b\u524d\u5982\u4f55\u4ea4\u4e92\u5f71\u54cd\u7684\uff0c\u4eca\u5929\u7684\u6f14\u8bb2\u5185\u5bb9\u4e3b\u8981\u5206\u4e09\u90e8\u5206\u5185\u5bb9\u30021.\u771f\u5b9e\u4e16\u754c\u7684\u5149\uff0c\u6750\u8d28\uff0c\u4ee5\u53ca\u4ed6\u4eec\u4e4b\u95f4\u7684\u4ea4\u4e92\u662f\u5982\u4f55\u7684\uff0c2. UE4\u91cc\u662f\u5982\u4f55\u6765\u6a21\u62df\u771f\u5b9e\u4e16\u754c\u7684\uff0c3.\u6211\u4eec\u8be5\u600e\u4e48\u505a\u624d\u662f\u6b63\u786e\u7684\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/20458-image2-935x527-801886370.png\" alt=\"\" \/><\/p>\n<p>\u8981\u5b66\u4f1a\u4f7f\u7528PBR\u9996\u5148\u9700\u8981\u4e86\u89e3\u4ec0\u4e48\u662fPBR\uff0c\u9700\u8981\u4ece\u771f\u5b9e\u4e16\u754c\u7684\u8fd9\u4e9bPBR\u6750\u8d28\u7279\u6709\u7684\u5c5e\u6027\u62c6\u5206\u5f00\u6765\u53bb\u4e86\u89e3\u4ed6\u4eec\uff0c\u8fd9\u6837\u6211\u4eec\u5c31\u9700\u8981\u4e86\u89e3\u5149\uff0c\u7269\u4f53\u8868\u9762\u6750\u8d28\u4ee5\u53ca\u5149\u662f\u5982\u4f55\u4e0e\u6750\u8d28\u4ea4\u4e92\u7684\u3002 \u5149\u5305\u62ec\u4e86\u989c\u8272\uff0c\u4eae\u5ea6\uff0c\u8870\u51cf\uff0c\u5f3a\u5ea6\uff0c\u5f62\u72b6\u7b49\u4e3b\u8981\u5c5e\u6027\uff0c\u771f\u5b9e\u7684\u4e16\u754c\u4e2d\u6c38\u8fdc\u662f\u591a\u5149\u6e90\u5e76\u5b58\uff0c\u9664\u975e\u8eab\u5904\u4e8e\u5b87\u5b99\u6df1\u7a7a\u4e4b\u4e2d\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/ec20e-image3-934x524-1784278447.png\" alt=\"\" \/><\/p>\n<p>\u6211\u4eec\u628a\u81ea\u8eab\u80fd\u53d1\u5149\u7684\u7269\u4f53\u53eb\u505a\u76f4\u63a5\u5149\u6e90\uff0c\u81ea\u8eab\u4e0d\u53d1\u5149\u4ec5\u4ec5\u53cd\u5f39\u5176\u4ed6\u5149\u6e90\u7684\u7269\u4f53\u53eb\u505a\u975e\u76f4\u5c04\u5149\u6e90\u3002\u5206\u6790\u4e0b\u8fd9\u5f20\u56fe\uff0c\u4ece\u7f8e\u672f\u89d2\u5ea6\u6211\u4eec\u628a\u4ed6\u5206\u6210\u4e3b\u5149\uff0c\u8f85\u5149\uff0c\u88c5\u9970\u5149\u3002\u867d\u7136\u5929\u8272\u5df2\u665a\u4e3b\u5149\u8fd8\u662f\u6765\u81ea\u4e8e\u5929\u7a7a\uff0c\u5929\u7a7a\u7684\u5149\u7ebf\u6765\u81ea\u4e8e\u592a\u9633\u7684\u6563\u5c04\uff0c\u56e0\u6b64\u4e3b\u5149\u6765\u81ea\u4e8e\u4e00\u4e2a\u5929\u7a7a\u7684\u975e\u76f4\u5c04\u5149<\/p>\n<p>\u9644\u5149\u6765\u81ea\u4e8e\u8def\u706f\uff0c\u5927\u7684\u57ce\u5e02\u7167\u660e\u3002\u8fd9\u4e9b\u5149\u5927\u90fd\u6570\u4e5f\u662f\u53cd\u5f39\u5149\uff0c\u800c\u975e\u706f\u6ce1\u5149\u6e90\u76f4\u63a5\u7167\u5c04\u5230\u3002\u56e0\u6b64\u524d\u666f\u7684\u4eba\u7269\u57fa\u672c\u662f\u5728\u4e00\u4e2a\u5929\u5149\u7684\u73af\u5883\u4e0b\u4f4e\u5bf9\u6bd4\u4f4e\u7167\u5ea6\u7684\u706f\u5149\u73af\u5883\u4e0b<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/45c54-image4-934x525-150621813.png\" alt=\"\" \/><\/p>\n<p>\u90a3\u4e48\u81ea\u7136\u754c\u4e2d\u7684\u6750\u8d28\u662f\u5982\u4f55\u8ddf\u5149\u4ea4\u4e92\u7684\u5462\uff1f\u706f\u5149\u7167\u5c04\u5230\u7269\u4f53\u8868\u9762\u540e\u4e24\u79cd\u60c5\u51b5\uff0c\u53cd\u5c04\u6216\u7ee7\u7eed\u524d\u884c\u6298\u5c04\u3002\u6298\u5c04\u540e\u7684\u5149\u7ebf\u88ab\u5438\u6536\uff08\u4e00\u822c\u8f6c\u5316\u4e3a\u70ed\uff09\uff0c\u6216\u79bb\u6563\u3002\u5149\u7ebf\u88ab\u5438\u6536\u7684\u884c\u4e3a\u4e0d\u662f\u53d1\u751f\u5728\u8868\u9762\uff0c\u800c\u662f\u6b21\u8868\u9762\uff0c\u6216\u8005\u5185\u90e8\u53cd\u5c04\u4e0d\u4f1a\u5e26\u51fa\u4efb\u4f55\u989c\u8272\u3002<\/p>\n<p>\u5438\u6536\u4f1a\u4f7f\u5149\u7ebf\u5f3a\u5ea6\u964d\u4f4e\uff0c\u5438\u6536\u67d0\u4e00\u5149\u8c31\u7684\u5149\u7ebf\uff0c\u4f59\u4e0b\u7684\u5149\u7ebf\u989c\u8272\u53d8\u5316\uff0c\u4f46\u65b9\u5411\u4e0d\u53d8<\/p>\n<p>\u79bb\u6563\u540e\u65b9\u5411\u6539\u53d8\uff0c\u5f3a\u5ea6\u4e0d\u53d8\u8fd9\u91cc\u5bf9\u4e8e\u7edd\u7f18\u4f53\u548c\u5bfc\u4f53\uff0c\u4e24\u8005\u4e0e\u5149\u7684\u4ea4\u4e92\u662f\u5b8c\u5168\u4e0d\u540c\u7684<\/p>\n<p>\u7edd\u7f18\u4f53\uff0c\u5373\u975e\u91d1\u5c5e\u7684\u53cd\u5c04\u7387\u666e\u904d\u5f88\u4f4e\uff0c\u4e00\u822c\u57282%-8%\u5de6\u53f3\uff0c\u5927\u90e8\u5206\u5149\u7ebf\u8fdb\u884c\u6298\u5c04\uff0c\u6298\u5c04\u540e\u7684\u5149\u7ebf\u6216\u8005\u88ab\u5438\u6536\uff0c\u6216\u8005\u91cd\u65b0\u79bb\u6563\u51fa\u6765\u3002\u8fd9\u90e8\u5206\u6298\u5c04\u7684\u5149\u7ebf\u5438\u6536\u7387\u548c\u6750\u8d28\u7684\u660e\u5ea6\u6709\u5173\uff0c\u6697\u7684\u5438\u6536\u591a\uff0c\u4eae\u7684\u5438\u6536\u5c11\uff1b\u79bb\u6563\u540e\u5149\u7ebf\u7684\u989c\u8272\u4e5f\u53d6\u51b3\u4e8e\u7269\u4f53\u8868\u9762\u989c\u8272\uff1b<\/p>\n<p>\u5bf9\u4e8e\u5bfc\u4f53\uff0c\u5373\u91d1\u5c5e\uff0c\u53cd\u5c04\u7387\u666e\u904d\u5f88\u9ad8\uff0c\u8fbe\u523070%-100%\uff0c\u6240\u4ee5\u5927\u90e8\u5206\u5149\u7ebf\u4f1a\u4ee5\u955c\u9762\u53cd\u5c04\u7684\u5f62\u5f0f\u53cd\u5f39\u56de\u6765\u3002\u5c0f\u90e8\u5206\u5149\u7ebf\u6298\u5c04\u540e\u5b8c\u5168\u88ab\u5438\u6536\uff08\u5149\u662f\u4e00\u79cd\u7c92\u5b50\uff0c\u88ab\u5bfc\u4f53\u5438\u6536\uff09\uff0c\u4e0d\u540c\u7684\u91d1\u5c5e\u5438\u6536\u4e0d\u540c\u6ce2\u957f\u7684\u5149\u7ebf\uff0c\u5bfc\u81f4\u955c\u9762\u53cd\u5c04\u56de\u7684\u5149\u7ebf\u5e26\u6709\u989c\u8272\uff1b<\/p>\n<p>\u6f2b\u5c04\u548c\u955c\u9762\u53cd\u5c04\uff1a\u6f2b\u5c04\u4e3a\u53cd\u5c04\u5149\u7ebf\u65b9\u5411\u968f\u673a\uff0c\u4e0d\u4e00\u81f4\uff1b\u955c\u9762\u53cd\u5c04\u4e3a\u4e00\u4e2a\u65b9\u5411\u3002\u955c\u9762\u53cd\u5c04\u4f1a\u6839\u636e\u7269\u4f53\u8868\u9762\u7684\u7c97\u7cd9\u7a0b\u5ea6\u8868\u73b0\u4e0d\u540c\u7ed3\u679c\u3002\u4f46\u65e0\u8bba\u5149\u6ed1\u7c97\u7cd9\uff0c\u53cd\u5c04\u7684\u603b\u80fd\u91cf\u662f\u4e00\u6837\u7684\uff0c\u800c\u4e14\u5149\u7ebf\u53cd\u5c04\u540e\u7684\u5f3a\u5ea6\u4e0d\u53d8\u3002\u6f2b\u5c04\u662f\u5149\u7ebf\u88ab\u6298\u5c04\u7684\u8868\u73b0\u3002\u5149\u7ebf\u4ece\u4e00\u79cd\u5a92\u4ecb\u8fdb\u5165\u53e6\u4e00\u79cd\u5a92\u4ecb\uff0c\u5e76\u5728\u91cc\u9762\u7ecf\u8fc7\u591a\u6b21\u7684\u6563\u5c04\u540e\u4ece\u8fd1\u4f3c\u5165\u5c04\u70b9\u7684\u4f4d\u7f6e\u8fd4\u56de\u539f\u6765\u7684\u4ecb\u8d28\u4e2d\u3002\u6f2b\u5c04\u8fc7\u7a0b\u4e2d\u9664\u4e86\u5149\u7ebf\u7684\u79bb\u6563\u5149\u7ebf\u8fd8\u4f1a\u88ab\u5438\u6536\uff08\u8f6c\u5316\u6210\u70ed\u80fd\uff09\u3002\u5149\u7ebf\u8fdb\u5165\u4ecb\u8d28\u4e0d\u6df1\uff0c\u90a3\u4e48\u8fdb\u5165\u70b9\u548c\u79bb\u5f00\u70b9\u7684\u5dee\u522b\u5c31\u53ef\u4ee5\u88ab\u5ffd\u7565\u3002\u90a3\u79cd\u5149\u7ebf\u79bb\u6563\u6027\u9ad8\uff0c\u4f46\u5438\u6536\u6027\u5f31\u7684\u6750\u8d28\u6709\u65f6\u6307\u53c2\u4e0e\u4ecb\u8d28\u6216\u8005\u53eb\u900f\u660e\u6750\u8d28\u3002\u6bd4\u5982\u70df\uff0c\u725b\u5976\uff0c\u76ae\u80a4\uff0c\u7fe1\u7fe0\uff0c\u5927\u7406\u77f3\u7b49\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/bcff9-image5-934x526-99340848.png\" alt=\"\" \/><\/p>\n<p>\u800c\u5728\u66f4\u7ec6\u5fae\u7684\u5c42\u9762\uff0c\u6bd4\u5982\u663e\u5fae\u955c\u4e0b\uff0c\u5fae\u8868\u9762\u5c31\u662f\u7269\u4f53\u8868\u9762\u7ec6\u5fae\u7684\u4e0d\u89c4\u5219\u3002\u6839\u636e\u4e0d\u540c\u7684\u6d41\u7a0b\u53ef\u4ee5\u53eb\u7c97\u7cd9\u5ea6\uff0c\u5149\u6ed1\u5ea6\uff0c\u5149\u6cfd\u5ea6\u3002\u8868\u9762\u7684\u4e0d\u89c4\u5219\u5ea6\u5176\u5b9e\u5bf9\u4e8e\u6162\u53cd\u5c04\u7684\u5f71\u54cd\u89c6\u89c9\u4e0a\u4e0d\u5927\uff0c\u56e0\u4e3a\u6f2b\u5c04\u7684\u8fd9\u79cd\u79bb\u6563\u548c\u5438\u6536\u8fc7\u7a0b\u662f\u53d1\u751f\u5728\u6750\u8d28\u5185\u90e8\u7684\u800c\u975e\u8868\u9762\u3002<\/p>\n<p>\u5fae\u8868\u9762\u7406\u8bba\u5c31\u662f\u5efa\u7acb\u5728\u7269\u4f53\u8868\u9762\u8fd9\u79cd\u7ec6\u5fae\u4e0d\u89c4\u5219\u6027\u7684\u57fa\u7840\u4e0a\u7684\u3002\u53ef\u4ee5\u628a\u5b83\u770b\u4f5c\u8bb8\u8bb8\u591a\u591a\u4e0d\u540c\u65b9\u5411\u7684\u9762\uff0c\u8fd9\u4e9b\u9762\u5c31\u53eb\u505a\u5fae\u8868\u9762\u3002\u5149\u7ebf\u5bf9\u4e8e\u8fd9\u4e9b\u9762\u5bf9\u5165\u5c04\u89d2\u90fd\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u53cd\u5f39\u540e\u7684\u89d2\u5ea6\u4e5f\u4e0d\u4e00\u6837\uff0c\u5e76\u4e14\u6709\u7684\u5730\u65b9\u88ab\u6321\u4f4f\uff0c\u6709\u7684\u5730\u65b9\u4f1a\u4ea7\u751f\u9634\u5f71\uff0c\u89c6\u89c9\u4e0a\u4f1a\u4ea7\u751f\u6a21\u7cca\u7684\u53cd\u5c04<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/2f98e-image6-934x525-873078365.png\" alt=\"\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/9f6c8-image7-932x525-1953655777.png\" alt=\"\" \/><\/p>\n<p>\u5728\u5f15\u64ce\u4e2d\u7684\u660e\u6697shading\u8ba1\u7b97\u5f15\u5165\u4e86\u5404\u79cd\u51fd\u6570\u7406\u8bba\u6a21\u578b\uff0c\u6765\u5c3d\u91cf\u903c\u8fd1\u6a21\u62df\u81ea\u7136\u754c\u7684\u7269\u7406\u73b0\u8c61<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/6d9d9-image8-935x524-1566833520.png\" alt=\"\" \/><\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7BRDF\u6765\u4e86\u89e3UE4\u91cc\u9762\u662f\u5982\u4f55\u6a21\u62df\u7684\u3002<\/p>\n<p>BRDF \u53cc\u5411\u53cd\u5c04\u5206\u5e03\u51fd\u6570\uff08Bidirectional Reflectance Distribution Function\uff0cBRDF\uff09\u573a\u666f\u4e2d\u7684\u5149\u7167\u5c04\u5230\u6750\u8d28\u8868\u9762\u53cd\u5c04\u5230\u89c6\u70b9\u7684\u5149\u4eae\u5ea6\u8ba1\u7b97\u65b9\u6cd5\u51fd\u6570\uff0c\u6765\u5b9a\u4e49\u6750\u8d28\u5c5e\u6027\u3002\u5b83\u63cf\u8ff0\u4e86\u5165\u5c04\u5149\u7ebf\u7ecf\u8fc7\u67d0\u4e2a\u8868\u9762\u53cd\u5c04\u540e\u5982\u4f55\u5728\u5404\u4e2a\u51fa\u5c04\u65b9\u5411\u4e0a\u5206\u5e03\uff0c\u8fd9\u53ef\u4ee5\u662f\u4ece\u7406\u60f3\u955c\u9762\u53cd\u5c04\u5230\u6f2b\u53cd\u5c04<\/p>\n<p>UE4 PBS\u4e2d\u5f15\u5165\u4e86\u5404\u79cdBRDF\u7406\u8bba\u6a21\u578b\uff0c\u4e5f\u53ef\u4ee5\u5728shader\u91cc\u9009\u62e9\u9ed8\u8ba4\u6a21\u578b\uff0c\u6700\u7ec8\u9700\u8981\u6548\u7387\u548c\u6548\u679c\u7684\u4e00\u4e2a\u6700\u4f73\u7ed3\u5408\u70b9\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/6b0f6-image9-937x523-1824951870.png\" alt=\"\" \/><\/p>\n<p>\u901a\u8fc7\u4e00\u4e9b\u7b80\u5355\u7684\u53c2\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u5f15\u64ce\u4e2d\u7528\u6765\u533a\u5206\u4e0d\u540c\u7c7b\u578b\u6750\u8d28\u7684\u53cd\u5c04\u7279\u6027\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/28e0d-image10-932x524-86696538.png\" alt=\"\" \/><\/p>\n<p>\u5728UE4\u6750\u8d28\u91cc\u9762\uff0c\u6bcf\u4e00\u4e2ainput\u90fd\u6709\u7740\u5404\u81ea\u7684\u7279\u6027\uff0c\u4ed6\u4eec\u7684\u7ec4\u5408\u6210\u4e3a\u4e86\u4e00\u4e2a\u4e2a\u4e0d\u540c\u5c5e\u6027\u7684\u7269\u7406\u6750\u8d28\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/80e83-image11-934x523-377402235.png\" alt=\"\" \/><\/p>\n<p>\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684Metallic\u53c2\u6570\u7684\u8c03\u6574\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u8f7b\u6613\u533a\u5206\u4e24\u4e2a\u5b8c\u5168\u4e0d\u540c\u7684\u6750\u8d28\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/3e24a-image12-936x527-156151258.png\" alt=\"\" \/><\/p>\n<p>\u7269\u4f53\u8868\u9762\u7684\u53cd\u5149\u5c5e\u6027\u4e5f\u662f\u8fd9\u6837\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u53c2\u6570\uff0c\u901a\u8fc7\u8fd9\u5f20\u56fe\u7247\uff0c\u6211\u4eec\u5c31\u80fd\u591f\u975e\u5e38\u6e05\u6670\u7684\u533a\u5206\u5f00\u6765\u3002<\/p>\n<p>\u90a3\u4e48\u5982\u4f55\u5236\u4f5c\u4e00\u4e2a\u9ad8\u8d28\u91cf\u7684PBR\u6750\u8d28\uff0c\u5982\u4f55\u9009\u62e9\u4f7f\u7528\u7684\u5de5\u5177\uff0c\u5982\u4f55\u8bbe\u7f6e\u706f\u5149\u5462\uff1f\u3001<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/d8245-image13-934x526-651760155.png\" alt=\"\" \/><\/p>\n<p>\u9996\u5148\u89c2\u5bdf\u751f\u6d3b\u4e2d\u7684\u771f\u5b9e\u7269\u4f53\u662f\u975e\u5e38\u91cd\u8981\u7684\u73af\u8282\uff0c\u5b83\u80fd\u591f\u7ed9\u4f60\u4e00\u4e2a\u57fa\u672c\u7684\u6982\u5ff5\uff0c\u4e0d\u540c\u7684\u6750\u8d28\u5e94\u8be5\u6709\u54ea\u4e9b\u4e0d\u540c\u7684\u5c5e\u6027\u3002\u5728\u8bbe\u8ba1\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u4f1a\u6709\u4e00\u4e9b\u63cf\u8ff0\u6027\u7684\u8bcd\u8bed\u6765\u6e05\u6670\u8bf4\u660e\u76ee\u6807\u6750\u8d28\u7684\u5c5e\u6027\uff08\u6587\u5b57+\u56fe\u7247\uff09\uff0c\u63cf\u8ff0\u8bcd\u6c47\u5305\u62ec<\/p>\n<p>\u6750\u8d28\u7c7b\u578b\uff1a\u94a2\uff0c\u5851\u6599\uff0c\u94c1\uff0c\u73bb\u7483\uff0c\u6cb9\u6f06<\/p>\n<p>\u6750\u8d28\u660e\u5ea6\u989c\u8272<\/p>\n<p>\u6750\u8d28\u8868\u9762\u5904\u7406\uff1a\u6253\u78e8\u8fc7\u7684\uff0c\u629b\u5149\uff0c\u78e8\u7802<\/p>\n<p>\u6750\u8d28\u73af\u5883\u5f71\u54cd\u7ec6\u8282\u63cf\u8ff0\uff1a \u751f\u9508\u7684\uff0c\u522e\u64e6\u7684\uff0c\u78d5\u78b0\u7684\uff0c\u810f\u7684\uff0c\u6cb9\u817b\u7684\uff0c\u6cb9\u6f06\u5265\u843d\u7684\uff0c\u79ef\u7070\u7684\uff0c\u5d2d\u65b0\u7684<\/p>\n<p>\u7ffb\u8bd1\u8fd9\u4e9b\u4fe1\u606f\u5230UE\u7684\u6750\u8d28\u5c5e\u6027\uff0c\u6750\u8d28\u7c7b\u578b\u7684\u4fe1\u606f\u6765\u533a\u5206\u91d1\u5c5e\u8fd8\u662f\u975e\u91d1\u5c5e\uff0c\u6750\u8d28\u660e\u5ea6\u53ca\u989c\u8272\u6765\u5b9a\u4e49BaseColor\uff0c\u8868\u9762\u5904\u7406\u5173\u7cfb\u5230Roughness\uff0c\u73af\u5883\u5f71\u54cd\u590d\u6742\u591a\u53d8\uff0c\u7275\u626f\u5230\u5305\u62ec\u4ee5\u4e0a\u591a\u4e2a\u901a\u9053\u3002<\/p>\n<p>\u6bd4\u5982\u810f\u65e7\u78d5\u78b0\u7684\u91d1\u5c5e\u6389\u6f06\u7684\u8868\u9762\uff1a\u6389\u843d\u6cb9\u6f06\u7684\u90e8\u5206\u4e3a\u91d1\u5c5e\uff0c\u672a\u6389\u843d\u90e8\u5206\u4e3a\u6cb9\u6f06\uff0c\u5728\u6750\u8d28\u7c7b\u578b\u91d1\u5c5e\u6027\u7684\u5b9a\u4e49\u91cc\u533a\u5206\u5f00\u6765\uff1b\u78d5\u78b0\u4fe1\u606f\u4ece\u6cd5\u7ebf\u8d34\u56fe\uff0c\u7c97\u7cd9\u5ea6\u8d34\u56fe\uff1b\u65b0\u65e7\u53c8\u5f71\u54cd\u955c\u9762\u53cd\u5c04\u7684\u91cf\u548c\u8fde\u7eed\u6027\uff0c\u53c8\u548c\u7c97\u7cd9\u5ea6\u8d34\u56fe\u6709\u5173<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/5fc4a-image14-932x526-1792635988.png\" alt=\"\" \/><\/p>\n<p>\u5728\u9879\u76ee\u5f00\u59cb\u524d\u95ee\u51e0\u4e2a\u95ee\u9898\uff1a<\/p>\n<ol>\n<li>\u6750\u8d28\u9700\u8981\u5171\u7528\u5417\uff1f<\/li>\n<li>\u6750\u8d28\u7684\u7cbe\u5ea6\u8981\u6c42\u9ad8\u5417\uff1f<\/li>\n<li>\u6750\u8d28\u9700\u8981\u7edf\u4e00\u7ba1\u7406\u8fc5\u901f\u8fed\u4ee3\u5417\uff1f<\/li>\n<li>\u9700\u8981\u81ea\u5b9a\u4e49\u6216\u5141\u8bb8\u6539\u53d8\u5916\u89c2\u5417\uff1f<\/li>\n<li>\u6548\u7387\/\u5185\u5b58\uff1a\u6750\u8d28\u80fd\u591f\u591a\u590d\u6742\uff1f\u8d34\u56fe\u80fd\u591f\u652f\u6301\u591a\u5c11\uff1f<\/li>\n<li>\u662f\u5426\u9700\u8981\u590d\u7528\uff1f<\/li>\n<li>CG or Game?<\/li>\n<li>\u9700\u8981\u6539\u53d8\u8d34\u56fe\u5417\uff1f<\/li>\n<li>\u5185\u5b58\u591a\u5927\uff1f<\/li>\n<li>\u5ba2\u6237\u7aef\u5927\u5c0f\uff1f<\/li>\n<li>\u7f16\u8f91\u5668\u5185\u8fd8\u662f\u5916<\/li>\n<li>\u5176\u4ed6\u95ee\u9898<\/li>\n<\/ol>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/9759c-image15-934x526-1565572163.png\" alt=\"\" \/><\/p>\n<p>\u901a\u8fc7\u521b\u5efa\u533a\u5206\u6750\u8d28\uff0c\u5c06\u4e00\u4e2a\u6a21\u578b\u4e0d\u540c\u7684\u533a\u57df\u533a\u5206\u5f00\u6765\uff0c\u533a\u5206\u5927\u5757\u9762\u6750\u8d28\u7684\u610f\u4e49\u5728\u4e8e\u4e00\u4e2a\u7269\u4ef6\u6709\u591a\u79cd\u6750\u8d28\uff0c\u5fc5\u987b\u6709\u533a\u5206\u5b83\u4eec\u7684mask\uff0c\u65b9\u4fbf\u968f\u65f6\u4fee\u6539\u4e0d\u540c\u6750\u8d28\u533a\u57df\u7684\u8d34\u56fe\uff0c\u63d0\u4f9b\u5728\u5f15\u64ce\u4e2d\u66f4\u6362\u4e0d\u540c\u533a\u57df\u7684\u6750\u8d28\u7684\u53ef\u80fd\u6027\uff0c\u4e3a\u8fdb\u4e00\u6b65\u5728\u8868\u9762\u589e\u52a0\u7ec6\u8282\u63d0\u4f9b\u533a\u5206\u7684\u901a\u9053<\/p>\n<p>\u533a\u5206\u6750\u8d28\u7684\u4fe1\u606f\u662f\u7070\u5ea6\u56fe\uff0c\u4e0d\u540c\u7684\u533a\u57df\u53ef\u4ee5\u653e\u5728\u4e00\u5f20RGBA\u8d34\u56fe\u7684\u5404\u4e2a\u901a\u9053\u91cc\uff1b\u6839\u636e\u6750\u8d28\u7684\u6570\u91cf\u53ef\u4ee5\u662f\u5355\u5f20\u6216\u591a\u5f20\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/a75de-image16-935x524-550642264.png\" alt=\"\" \/><\/p>\n<p>\u771f\u5b9e\u7684\u4e16\u754c\u4e2d\uff0c\u6bcf\u4e00\u4e2a\u6750\u8d28\u90fd\u6709\u8bb8\u591a\u7684\u7ec6\u8282\uff0c\u6240\u4ee5\u63a5\u4e0b\u6765\uff0c\u4e3a\u6750\u8d28\u6dfb\u52a0\u66f4\u591a\u7684\u7ec6\u8282\uff0c\u6bd4\u5982\u5212\u75d5\uff0c\u6c61\u6e0d\uff0c\u73af\u5883\u5143\u7d20\u7b49\uff0c\u8fd9\u4e9b\u4fe1\u606f\u6765\u81ea\u4e8e\u6a21\u578b\u8d77\u4f0f\uff0c\u6cd5\u7ebf\uff0c\u53ef\u4ee5\u624b\u52a8\u9009\u53d6\uff1b\u7ecf\u5e38\u7531\u4e00\u4e9b\u5de5\u5177\u8f6f\u4ef6\u751f\u6210\uff0c\u8fd9\u4e9b\u5de5\u5177\u8f6f\u4ef6\u53ef\u4ee5\u6bd4\u8f83\u53ea\u80fd\u7684\u6839\u636e\u5df2\u6709\u7684\u6a21\u578b\u4fe1\u606f\u5224\u65ad\u548c\u751f\u6210\u51fa\u81ea\u7136\u7684\u7ec6\u8282\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/6627d-image17-930x526-359138676.png\" alt=\"\" \/><\/p>\n<p>\u5c06\u5927\u5757\u9762\u7684\u6750\u8d28\u533a\u5206\u901a\u9053\u548c\u7ec6\u8282\u6750\u8d28\u533a\u5206\u901a\u9053\u8fdb\u884c\u6df7\u5408\uff0c\u7531\u4e8e\u5927\u5757\u9762\u6750\u8d28\u533a\u5206\u901a\u9053\u548c\u7ec6\u8282\u6750\u8d28\u533a\u5206\u901a\u9053\u662f\u5206\u79bb\u7684\u7ed9\u6df7\u5408\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u81ea\u7531\u5ea6\uff0c\u8fd9\u79cd\u81ea\u7531\u5ea6\u8868\u73b0\u5728\u53ef\u4ee5\u63a7\u5236\u54ea\u4e9b\u7ec6\u8282\u53ef\u4ee5\u51fa\u73b0\u6216\u8005\u88ab\u5c4f\u853d\u5728\u54ea\u4e9b\u533a\u57df\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/51153-image18-932x525-739115466.png\" alt=\"\" \/><\/p>\n<p>\u73b0\u5728\u5728\u5e02\u9762\u4e0a\u53ef\u4ee5\u770b\u5230\u5927\u91cf\u7684\u5de5\u5177\u53ef\u4ee5\u5e2e\u52a9\u5728UE4\u91cc\u9762\u5b8c\u6210PBR\u6750\u8d28\u7684\u5236\u4f5c\uff0c\u5728\u8fd9\u91cc\u6211\u4eec\u5217\u4e3e\u51fa\u4e86\u4e00\u4e9b\u4e3b\u6d41\u7684\u914d\u5957\u5de5\u5177\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/3f7bd-image19-934x523-736716192.png\" alt=\"\" \/><\/p>\n<p>\u5236\u4f5c\u7684\u8fc7\u7a0b\u5206\u4e3a\u4e09\u4e2a\u90e8\u5206\uff0c\u4ece\u9ad8\u6a21\u548c\u4f4e\u6a21\u521b\u5efa\u51faNormalMap\uff0cID Mask \uff0cAO\u548cCavity\u3002\u7136\u540e\u518d\u4e0a\u9762\u6dfb\u52a0\u5fc5\u8981\u7684\u7ec6\u8282\uff0c\u6700\u7ec8\u5bfc\u5165UE4\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/445fa-image20-929x523-465135782.png\" alt=\"\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/78985-image21-936x523-523191070.png\" alt=\"\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/39068-image22-937x526-1586074656.png\" alt=\"\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/3882e-image23-939x529-849645217.png\" alt=\"\" \/><\/p>\n<p>\u5728\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e9b\u5de5\u5177\u6765\u589e\u52a0\u7ec6\u8282\u8d34\u56fe\uff0c\u5728\u5f15\u64ce\u4e2d\u5408\u5e76\uff0c\u8fd9\u6837\u53ef\u4ee5\u8ba9\u6750\u8d28\u66f4\u4e3a\u771f\u5b9e\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/8d877-image24-932x526-396542354.png\" alt=\"\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/d421f-image25-934x527-1314728970.png\" alt=\"\" \/><\/p>\n<p>\u901a\u8fc7\u4ee5\u4e0b\u8fd9\u4e9b\u6b65\u9aa4\uff0c\u6211\u4eec\u5c31\u80fd\u591f\u8868\u73b0\u591a\u5c42\u6750\u8d28<\/p>\n<ol>\n<li>\u5bfc\u5165\uff1a\u4e3bMASK, \u7ec6\u8282MASK\uff0c NORMALMAP, AO, CAVITY<\/li>\n<li>\u521b\u5efa\u57fa\u672c\u6750\u8d28\uff0c\u5305\u62ec\u57fa\u672c\u6750\u8d28\u4e2d\u7ec6\u8282\u6dfb\u52a0\u7684\u53ef\u80fd\u6027<\/li>\n<li>\u521b\u5efa\u6bcd\u6750\u8d28\uff0c\u6df7\u5408\u57fa\u672c\u6750\u8d28<\/li>\n<li>\u6dfb\u52a0\u66f4\u591a\u53d8\u5316\uff1a\u56fe\u6848\uff0c\u6f6e\u6e7f\u5ea6\/\u591a\u5b54\u6027<\/li>\n<li>\u521b\u5efa\u6750\u8d28\u5b9e\u4f8b<\/li>\n<\/ol>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/e8069-image26-933x527-953868473.png\" alt=\"\" \/><\/p>\n<p>\u6750\u8d28\u8d34\u56fe\u90fd\u5b8c\u4e8b\u4e86\uff1f\u8fd8\u6ca1\u7ed3\u675f\u5462\u3002PBR\u7684\u5173\u952e\u4e4b\u4e00\u706f\u5149\uff1a\u521b\u5efa\u771f\u5b9e\u7684\u706f\u5149\u73af\u5883\u3002 \uff08\u8fd9\u91cc\u4e0d\u8c08\u8bba\u827a\u672f\u7684\u706f\u5149\u73af\u5883\uff0c\u4ec5\u8ffd\u6c42\u771f\u5b9e\uff09<\/p>\n<p>\u771f\u5b9e\u7684\u706f\u5149\u5305\u62ec\u76f4\u5c04\u5149\uff0c\u975e\u76f4\u5c04\u5149\uff0c \u5e76\u4e14HDR\uff0c\u5728\u706f\u5149\u534a\u5f84\u8303\u56f4\u5185\u7684\u7269\u4f53\u8868\u9762\u4f1a\u88ab\u706f\u5149\u76f4\u63a5\u7167\u4eae\uff0c\u5e76\u6709\u9ad8\u5149\u70b9\uff1b\u8303\u56f4\u5916\u7269\u4efb\u4f55\u7167\u660e\uff08\u5305\u62ec\u6f2b\u5c04\u548c\u955c\u9762\u53cd\u5c04\uff09\u3002<\/p>\n<p>\u5728\u771f\u5b9e\u4e16\u754c\u4e2d\u706f\u5149\u7406\u8bba\u4e0a\u662f\u6ca1\u6709\u8303\u56f4\u7684\uff0c\u867d\u7136\u968f\u7740\u8ddd\u79bb\u589e\u52a0\u7167\u5ea6\u964d\u4f4e\uff0c\u4f46\u59cb\u7ec8\u4f1a\u6709\u5f71\u54cd\uff0c\u5728\u955c\u9762\u53cd\u5c04\u4e0a\u5c24\u4e3a\u660e\u663e\u3002<\/p>\n<p>\u8fd9\u79cd\u53cd\u5c04\u5728UE4\u91cc\u9700\u8981\u7531\u9ad8\u52a8\u6001\u7684\u73af\u5883\u53cd\u5c04\u8d34\u56fe\u6765\u8868\u73b0\uff0c\u662f\u4e00\u79cdIBL\u7684\u7167\u660e\u65b9\u5f0f\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/9017e-image27-932x528-1960410702.png\" alt=\"\" \/><\/p>\n<p>\u6709\u4e86\u706f\u5149\u7684\u70d8\u6258\uff0c\u4e00\u628a\u6b21\u65f6\u4ee3PBR\u6750\u8d28\u7684\u6b66\u5668\u5c31\u6b63\u5f0f\u767b\u573a\u4e86\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/c0fd1-image28-935x526-2108289535.png\" alt=\"\" \/><\/p>\n<p>PBR\u6750\u8d28\u662f\u672a\u6765\u7684\u6807\u51c6\uff0c\u5728\u4f20\u7edf\u6750\u8d28\u8f6c\u6362\u5230PBR\u6750\u8d28\u7684\u8fc7\u7a0b\u5f53\u4e2d\uff0c\u6211\u4eec\u4f1a\u9047\u5230\u5f88\u591a\u7684\u6311\u6218\u3002\u5bf9\u4e8e\u4f20\u7edf\u8d34\u56fe\u5230PBR\u8d34\u56fe\u6ca1\u6709\u4e00\u952e\u8f6c\u6362\u7684\u5de5\u5177\uff0c\u56e0\u4e3a\u6709\u4e9b\u4fe1\u606f\u8ba1\u7b97\u673a\u662f\u65e0\u6cd5\u731c\u6d4b\u51fa\u6765\u7684\uff0c\u8fd8\u662f\u9700\u8981\u4e3b\u89c2\u53bb\u5224\u65ad\u3002\u76ee\u524d\u6709\u4e24\u79cdPBR\u6d41\u7a0b\u8d34\u56fe\u8f6c\u6362\u53ef\u4ee5\u4f7f\u7528\u5de5\u5177\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/53a78-image29-931x527-1132297677.png\" alt=\"\" \/><\/p>\n<p>\u73b0\u5728\u7684\u706f\u5149\u6709\u76f4\u5c04\u5149\uff0c\u9634\u5f71\uff0c\u4e5f\u6709\u95f4\u63a5\u5149\uff0c\u95f4\u63a5\u53cd\u5c04\u7b49\uff0c\u6240\u4ee5\u8d34\u56fe\u4e0a\u4e0d\u9700\u8981\u628a\u706f\u5149\u4fe1\u606f\u753b\u4e0a\u53bb\uff0c\u53ea\u8981\u4e13\u6ce8\u4e8e\u8868\u8fbe\u6750\u8d28\u5c5e\u6027\u3002\u6211\u4eec\u4e0d\u9700\u8981\u753b\u9ad8\u5149\u989c\u8272\uff08\u53cd\u8272\uff09\u6765\u8fbe\u5230\u4e00\u4e2a\u770b\u4e0a\u53bb\u662f\u767d\u8272\u7684\uff1b\u7ebf\u6027\u7a7a\u95f4\u6e32\u67d3\u610f\u5473\u7740\u5bf9\u4e8ebasecolor\u7684\u660e\u5ea6\u8303\u56f4\u5927\u698230-50 \u5230180-250<\/p>\n<p>\u80fd\u91cf\u5b88\u6052\u4f7f\u5f97\u9ad8\u5149\u5982\u4f55\u600e\u4e48\u53d8\u90fd\u4e0d\u4f1a\u589e\u52a0\u6216\u51cf\u5c11\uff0c\u5c31\u4e0d\u9700\u8981\u624b\u52a8\u7684\u6765\u8c03\u6574\u8d34\u56fe\u4f7f\u5f97\u7c97\u7cd9\u7684\u5730\u65b9\u9ad8\u5149\u8d34\u56fe\u6697\uff0c\u5149\u6ed1\u7684\u5730\u65b9\u9ad8\u5149\u8d34\u56fe\u4eae\u3002\u8fd9\u65f6\u5019\u5c31\u9700\u8981\u7528\u5df2\u6709\u7684\u4fe1\u606f\u6216\u4fee\u6539\u540e\u751f\u6210roughness\uff0cCavity:\u6765\u5b9a\u4e49\u5fae\u8868\u9762\u7684\u53d8\u5316\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/768d1-image30-934x525-2025918915.png\" alt=\"\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tao0.date\/wp-content\/uploads\/2021\/06\/f0b02-image31-934x520-1311039851.png\" alt=\"\" \/><\/p>\n<p>\u901a\u8fc7\u8fd9\u6837\u7684\u8c03\u6574\uff0c\u6211\u4eec\u5c31\u80fd\u591f\u5c06\u4f20\u7edf\u7684\u6750\u8d28\u8f6c\u5316\u5230PBR\u6750\u8d28\u3002\u4e3a\u6211\u4eec\u7684\u6e38\u620f\u6dfb\u52a0\u66f4\u597d\u7684\u8d28\u611f<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PBR\u662fPhysically-Based Rend&hellip;<\/p>\n","protected":false},"author":1,"featured_media":4411,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[],"class_list":["post-4408","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-code"],"_links":{"self":[{"href":"https:\/\/tao0.date\/index.php?rest_route=\/wp\/v2\/posts\/4408","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tao0.date\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tao0.date\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tao0.date\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tao0.date\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4408"}],"version-history":[{"count":0,"href":"https:\/\/tao0.date\/index.php?rest_route=\/wp\/v2\/posts\/4408\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tao0.date\/index.php?rest_route=\/wp\/v2\/media\/4411"}],"wp:attachment":[{"href":"https:\/\/tao0.date\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tao0.date\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tao0.date\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}