Physics and Math of Shading (2) - graphics.hatenablog.comå‰å›ž ã®ç¶šã。 The Mathematics of Shading é›»ç£æ°—å¦ radiometry ã®è¦³ç‚¹ã‹ã‚‰å…‰ light を考ãˆã‚‹ã®ã«ã€ã²ã¨ã¾ãšã¯æ”¾å°„è¼åº¦ radiance ã ã‘ã‚’ã¿ã‚‹ã“ã¨ã«ã™ã‚‹ã€‚ã“ã“ã§ã¯ã€æ”¾å°„è¼åº¦ã‚’「1本ã®ãƒ¬ã‚¤ã‹ã‚‰æ”¾å°„ã•ã‚Œã‚‹å…‰ã®é‡ã€ã‚’定義ã™ã‚‹å€¤ã¨ã—ã¦ç”¨ã„る。ç†è«–çš„ã«ã¯æ³¢é•·ã«å¿œã˜ãŸæ”¾å°„è¼åº¦ã‚’考ãˆã‚‹å¿…è¦ãŒã‚ã‚‹ã‘ã©ã€å®Ÿéš›ã«ã¯ã‚‚ã£ã¨ç°¡ç•¥åŒ–ã—㦠RGB ã® 3 è¦ç´ ã‚’ã¾ã¨ã‚ã¦æ‰±ã†ã“ã¨ã«ã™ã‚‹ã€‚ The BRDF BRDF ã¯åŒæ–¹å‘å射率分布関数 Bidirectional Reflectance Distribution Function ã®ç•¥ã§ã€è¡¨é¢ surface ãŒå…‰ã‚’å—ã‘ãŸã¨ãã®åå¿œ response を定é‡åŒ–ã™ã‚‹ãŸã‚ã®é–¢æ•°ã 。ã“ã‚Œã¯ã€å…¥å°„ベクトル lã€å射ベクトル v ã‚’çƒé¢åº§æ¨™ç³»ã® θ 㨠φ ã§æ‰±ã†ã€4次元関数ã¨ãªã‚‹ã€‚v ã®å›žè»¢ã¯ BRDF ã«å½±éŸ¿ã‚’与ãˆãªã„ãŒã€ç•°
『THE COMPREHENSIVE PBR GUIDE� Volume 1: The Theory of PBR by Allegorithmicã€ç§å®¶è¨³ç‰ˆ
基礎ã‹ã‚‰ã¯ã˜ã‚る物ç†ãƒ™ãƒ¼ã‚¹ãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚° - Qiita
Understanding the Masking-Shadowing Function in Microfacet-Based BRDFs (1) - graphics.hatenablog.com
脱・完全é¡é¢å射～GGXã«ã¤ã„ã¦èª¿ã¹ã¦ã¿ãŸï½ž - Qiita
{{#tags}}- {{label}}
{{/tags}}