[B! Theory] agwã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

agw id:agw

Theoryã«é–¢ã™ã‚‹agwã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (161)

${{author_name}}$

{{author_name}} {{created}}

{{{comment_expanded}}}

{{label}}

{{#is_bookmark}}ãƒªã‚¹ãƒˆ{{/is_bookmark}}{{^is_bookmark}}ãƒªãƒ³ã‚¯{{/is_bookmark}}

${{author_name}}$
{{author_name}}{{created}}
{{ #comment }}{{ comment }}{{ /comment }}
- {{ label }}

{{#following_bookmarks}}

${{author_name}}$

{{author_name}} {{created}}

{{{comment_expanded}}}

{{label}}

{{#is_bookmark}}ãƒªã‚¹ãƒˆ{{/is_bookmark}}{{^is_bookmark}}ãƒªãƒ³ã‚¯{{/is_bookmark}}

{{/following_bookmarks}}

{{/is_wiped}}

ãƒªãƒˆãƒ«ã®æ³•å‰‡-å¾…ã¡æ™‚é–“ã®æŽ¨å®šï¼ã“ã®è¡Œåˆ—ã¯ã€ã‚ã¨ä½•åˆ†ã€å¾…ãŸãªãã¦ã¯ãªã‚‰ãªã„ã®ã‹?
äººæ°—ã®ã‚ã‚‹ã‚‚ã®ã«ã¯ã€ã™ãã«è¡Œåˆ—ãŒã§ãã‚‹ã€‚éŠåœ’åœ°ã®ã‚¢ãƒˆãƒ©ã‚¯ã‚·ãƒ§ãƒ³ã€æœ‰åãªãƒ¬ã‚¹ãƒˆãƒ©ãƒ³ã€é§…ã®çª“å£ã€ç—…é™¢ã®å—ä»˜ã€â€¦ã¨ã€è‡³ã‚‹ã¨ã“ã‚ã§è¡Œåˆ—ãŒã§ãã‚‹ã€‚ãƒ¯ã‚¯ãƒ¯ã‚¯ã™ã‚‹ã‚ˆã†ãªæ¥½ã—ã„ã“ã¨ã‚’å¾…ã¤ãŸã‚ã«ã€è¡Œåˆ—ã«ä¸¦ã¶ã®ã¯ã€å¤§ã—ã¦è‹¦ç—›ã§ã¯ãªã„ã€‚ã—ã‹ã—ã€å«Œãªã“ã¨ã‚’å¾…ã¤ã¨ãã‚„ã€æ€¥ã„ã§ã„ã‚‹ã¨ãã€å¾…ã¤ç’°å¢ƒãŒåŽ³ã—ã„ã¨ããªã©ã«ã¯ã€å¤§å¤‰ãªè‹¦ã—ã•ã‚’å‘³ã‚ã†ã“ã¨ã‚‚ã‚ã‚‹ã€‚ è¡Œåˆ—ã«ä¸¦ã‚“ã§ã„ã‚‹ã¨ã€èª°ã‚‚ãŒè€ƒãˆã‚‹ã®ã¯ã€ã€Œã‚ã¨ä½•åˆ†ã€å¾…ãŸãªãã¦ã¯ãªã‚‰ãªã„ã®ã‹?ã€ã¨ã„ã†ã“ã¨ã ã‚ã†ã€‚å¾…ã¡æ™‚é–“ã‚’çŸ¥ã‚ŠãŸã„ã¨ã„ã†æ€ã„ã¯ã€è¡Œåˆ—ã‚’å¾…ã¤äººã«ã€ã¤ãã‚‚ã®ã¨è¨€ãˆã‚‹ã€‚ç‰¹ã«ã€å¾…ã¤ã“ã¨ãŒè‹¦ç—›ã«æ„Ÿã˜ã‚‰ã‚Œã‚‹å ´åˆã«ã¯ã€ã‚¤ãƒ©ã‚¤ãƒ©æ„Ÿã‚‚æ‰‹ä¼ã£ã¦ã€ãã®æ€ã„ãŒå¼·ããªã‚‹ã€‚ è¡Œåˆ—ã®é•·ã•ãŒæ¯”è¼ƒçš„çŸã‘ã‚Œã°ã€å¾…ã¡æ™‚é–“ã®æŽ¨å®šã¯ã—ã‚„ã™ã„ã€‚ä¾‹ãˆã°ã€ã‚ã‚‹é§…ã®çª“å£ã§ã€è‡ªåˆ†ã®å‰ã«10äººãŒä¸¦ã‚“ã§ã„ã¦ã€1åˆ†é–“ã§1äººãšã¤çª“å£ã§ç”¨ã‚’æ¸ˆã¾ã›ã¦ã„ã‚‹ã¨ã—ã‚ˆã†ã€‚ã“ã®å ´åˆã¯ã€å¾…ã¡æ™‚é–“ã¯10åˆ†ã¨æŽ¨å®šã§ãã‚‹ã€‚ãŸã ã—ã€çª“å£ã§1äººã«ã‹ã‹ã‚‹æ™‚é–“
agw 2021/11/08
Theory

Algorithm

Programming
ãƒªãƒ³ã‚¯
Linear interpolation - Wikipedia
Given the two red points, the blue line is the linear interpolant between the points, and the value y at x may be found by linear interpolation. In mathematics, linear interpolation is a method of curve fitting using linear polynomials to construct new data points within the range of a discrete set of known data points. In this geometric visualisation, the value at the green circle multiplied by t
agw 2010/08/03
deferred

Mathematics

Programming

Theory
ãƒªãƒ³ã‚¯
Digital differential analyzer (graphics algorithm) - Wikipedia
This article is about a graphics algorithm. For the digital implementation of a differential analyzer, see Digital differential analyzer. In computer graphics, a digital differential analyzer (DDA) is hardware or software used for interpolation of variables over an interval between start and end point. DDAs are used for rasterization of lines, triangles and polygons. They can be extended to non li
agw 2010/08/03
Algorithm

Mathematics

Programming

Theory
ãƒªãƒ³ã‚¯
https://dl.acm.org/citation.cfm?id=180927
agw 2009/08/29
Paper

Theory

Probability

Programming
ãƒªãƒ³ã‚¯
Remainder - Wikipedia
Integer division with rem ainder. In mathematics, the rem ainder is the amount "left over" after performing some computation. In arithmetic, the rem ainder is the integer "left over" after dividing one integer by another to produce an integer quotient (integer division). In algebra of polynomials, the rem ainder is the polynomial "left over" after dividing one polynomial by another. The modulo operati
agw 2009/07/01
Mathematics

Programming

Theory
ãƒªãƒ³ã‚¯
Charles Poynton, PhD
IÂ am an independent contractor specializing in the physics, mathematics, engineering, and programming of digital colour (color!) imaging systems, including digital video, HD/UHD/4K/8K (HDTV/UHDTV), VFX/CGI, and DI and digital cinema (D-cinema) systems. IÂ am involved in engineering wide colour gamut (WCG, or wide gamut color) and high dynamic range (HDR) systems. IÂ am an expert in colorspaces such
agw 2009/04/11
deferred

CG

Theory
ãƒªãƒ³ã‚¯
ã‚·ãƒ£ãƒ‰ã‚¦ãƒžãƒƒãƒ—ã®è§£åƒåº¦å•é¡Œé–¢é€£ã®è«¸æŠ€è¡“ã«ã¤ã„ã¦ - ä½œæ¥è¨˜éŒ²
ã‚·ãƒ£ãƒ‰ã‚¦ãƒžãƒƒãƒ—ã®aliasing probl emã¨ã„ã†ã®ãŒã‚ã‚‹ã€‚å…‰æºæ–¹å‘ã¨é¢ã®è§’åº¦ãŒè¿‘ã„éƒ¨åˆ†ã«ç”Ÿã˜ã‚‹å½±ã®ä¾‹ã®ã‚®ã‚¶ã‚®ã‚¶ã§ã‚ã‚‹ãŒã€ã“ã‚Œã¯ã‚«ãƒ¡ãƒ©è¿‘å‚ã§ãƒãƒƒãƒ•ã‚¡ã®è§£åƒåº¦ãŒè¶³ã‚Šãªã„ãŸã‚ã«èµ·ã“ã‚‹ã€‚ä¸€èˆ¬çš„ã«ã‚«ãƒ¡ãƒ©ã®è¦–é‡Žã¯å¥¥ãŒåºƒããªã£ãŸéŒ˜å°ãªã®ã«å¯¾ã—ã¦ã€å…‰æºã‹ã‚‰ã®è¦–é‡Žã¯å¹³è¡Œå…‰æºãªã®ã§ç›´æ–¹ä½“ã§ã‚ã‚‹ã€‚ã“ã‚Œã§è¦–éŒ˜å°å…¨ä½“ã‚’å˜ç´”ã«åŽã‚ã‚ˆã†ã¨ã™ã‚‹ã¨å¤šãã®ç„¡é§„ãªéƒ¨åˆ†ãŒç”Ÿã˜ã¦ã—ã¾ã†ã—ã€ã‚«ãƒ¡ãƒ©ã®è¿‘å‚ãŒæœ€ã‚‚è§£åƒåº¦ãŒå¿…è¦ãªã®ã«ã‚‚é–¢ã‚ã‚‰ãšé æ–¹ã¨æ¯”ã¹ã¦å°ã•ãªè§£åƒåº¦ã—ã‹ç¢ºä¿ã•ã‚Œãªã„ã€‚ãã“ã§ã€è¦–é‡Žã®éŒ˜å°ã«å¯¾ã—ã¦å…‰æºã®è¦–éŒ˜å°ã‚’æ§˜ã€…ã«ã‚†ãŒã¾ã›ã‚‹æ‰‹æ³•ãŒææ¡ˆã•ã‚Œã¦ããŸã€‚ Perspactive Shadow Maps (PSM): http://www-sop.inria.fr/reves/Marc.Stamminger/psm/ ã‚ã‚‰ã‹ã˜ã‚ã‚«ãƒ¡ãƒ©æ–¹å‘ã‹ã‚‰ã®projectionå¤‰æ›ã¾ã§ã™ã¾ã›ãŸãƒ¢ãƒ‡ãƒ«ï¼ˆã‚«ãƒ¡ãƒ©ã‹ã‚‰é ããŒå°ã•ãè¿‘ããŒå¤§ãããªã£ã¦ã‚‹
agw 2009/01/02
deferred

CG

Theory
ãƒªãƒ³ã‚¯
ã€ã‚³ãƒ©ãƒ ã€‘3Dã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ãƒ»ãƒžãƒ‹ã‚¢ãƒƒã‚¯ã‚¹ (40) ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€(11)ã€œã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’æ´»ç”¨ã—ãŸæ–°è¡¨ç¾(7) | ãƒ‘ã‚½ã‚³ãƒ³ | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
agw 2008/12/30
GPU

CG

Theory
ãƒªãƒ³ã‚¯
ã€ã‚³ãƒ©ãƒ ã€‘3Dã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ãƒ»ãƒžãƒ‹ã‚¢ãƒƒã‚¯ã‚¹ (39) ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€(10)ã€œã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’æ´»ç”¨ã—ãŸæ–°è¡¨ç¾(6) | ãƒ‘ã‚½ã‚³ãƒ³ | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’æ´»ç”¨ã—ãŸæ–°è¡¨ç¾(6)ã€œãƒ‡ã‚£ã‚¹ãƒ—ãƒ¬ãƒ¼ã‚¹ãƒ¡ãƒ³ãƒˆãƒžãƒƒãƒ”ãƒ³ã‚° åˆ†å‰²ã—ãŸã ã‘ã®3Dãƒ¢ãƒ‡ãƒ«ã«å¯¾ã—ã€ç›´æŽ¥ãƒ‡ã‚£ã‚¹ãƒ—ãƒ¬ãƒ¼ã‚¹ãƒ¡ãƒ³ãƒˆãƒžãƒƒãƒ”ãƒ³ã‚°ã‚’è¡Œã£ã¦ã‚‚è‰¯ã„ã®ã ãŒã€ã›ã£ã‹ããƒãƒªã‚´ãƒ³åˆ†å‰²ã—ãŸã®ã§ã€ã“ã®åˆ†å‰²ã—ãŸ3Dãƒ¢ãƒ‡ãƒ«ã‚’ã‚ˆã‚Šæ»‘ã‚‰ã‹ã«è¦‹ã›ã‚‹å·¥å¤«ã‚‚åŒæ™‚ã«å®Ÿè£…ã™ã‚‹ã¨é«˜å“ä½ãªæç”»ãŒæœŸå¾…ã§ãã‚‹ã€‚ ATIã®ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’ä½¿ã£ãŸãƒ†ãƒƒã‚»ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã®ä»•çµ„ã¿ã§ã¯ã€ãã†ã—ãŸã‚¢ã‚¤ãƒ‡ã‚£ã‚¢ã¾ã§ã‚‚åŒæ™‚ã«å®Ÿè£…ã•ã‚Œã¦ã„ãŸã€‚ ãƒ†ãƒƒã‚»ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã®éš›ã«æ–°ã—ãç”Ÿæˆã•ã‚Œã‚‹ãƒãƒªã‚´ãƒ³ã«å¯¾ã—ã€ãã®é ‚ç‚¹åº§æ¨™ã‚’é«˜æ¬¡æ›²é¢ç”ŸæˆæŠ€æ³•ã®ã€Œãƒ™ã‚¸ã‚§æ›²é¢ã€(Bezier Curved Surface)ã®æ–¹ç¨‹å¼ã§ç®—å‡ºã•ã‚Œã‚‹ä½ç½®ã¸ã¨è¿‘ä¼¼ã™ã‚‹ã®ã ã€‚ãƒ™ã‚¸ã‚§æ›²é¢ã®åº§æ¨™ã‚„æ³•ç·šãƒ™ã‚¯ãƒˆãƒ«ã®è¨ˆç®—æ–¹æ³•ã‚„ã€ãã†ã—ãŸæƒ…å ±ã‚’åˆ†å‰²ã•ã‚ŒãŸä¸‰è§’å½¢ã®é ‚ç‚¹æƒ…å ±ã¸ã¯ã‚è¾¼ã‚€å…·ä½“çš„ãªæ‰‹æ®µã«ã¤ã„ã¦ã¯ã€ATIã®é–‹ç™ºè€…ã‚µã‚¤ãƒˆã«è«–æ–‡ãŒæŽ²è¼‰ã•ã‚Œã¦ã„ã‚‹ã®ã§ã€ãã¡ã‚‰ã‚’å‚ç…§ã—ã¦æ¬²ã—ã„ã€‚ ç°¡å˜ã«æ¦‚å¿µã ã‘ã‚’èª¬æ˜Žã™ã‚‹
agw 2008/12/30
GPU

CG

Theory
ãƒªãƒ³ã‚¯
ã€ã‚³ãƒ©ãƒ ã€‘3Dã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ãƒ»ãƒžãƒ‹ã‚¢ãƒƒã‚¯ã‚¹ (38) ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€(9)ã€œã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’æ´»ç”¨ã—ãŸæ–°è¡¨ç¾(5) | ãƒ‘ã‚½ã‚³ãƒ³ | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
agw 2008/12/30
GPU

CG

Theory
ãƒªãƒ³ã‚¯
ã€ã‚³ãƒ©ãƒ ã€‘3Dã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ãƒ»ãƒžãƒ‹ã‚¢ãƒƒã‚¯ã‚¹ (37) ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€(8)ã€œã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’æ´»ç”¨ã—ãŸæ–°è¡¨ç¾(4) | ãƒ‘ã‚½ã‚³ãƒ³ | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
agw 2008/12/30
GPU

CG

Theory
ãƒªãƒ³ã‚¯
ã€ã‚³ãƒ©ãƒ ã€‘3Dã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ãƒ»ãƒžãƒ‹ã‚¢ãƒƒã‚¯ã‚¹ (36) ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€(7)ã€œã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’æ´»ç”¨ã—ãŸæ–°è¡¨ç¾(3) | ãƒ‘ã‚½ã‚³ãƒ³ | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
agw 2008/12/30
GPU

CG

Theory
ãƒªãƒ³ã‚¯
ã€ã‚³ãƒ©ãƒ ã€‘3Dã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ãƒ»ãƒžãƒ‹ã‚¢ãƒƒã‚¯ã‚¹ (35) ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€(6)ã€œã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’æ´»ç”¨ã—ãŸæ–°è¡¨ç¾(2) | ãƒ‘ã‚½ã‚³ãƒ³ | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’æ´»ç”¨ã—ãŸæ–°è¡¨ç¾(2)ã€œç«‹ä½“çš„ãªãƒ¢ãƒ¼ã‚·ãƒ§ãƒ³ãƒ–ãƒ©ãƒ¼ã‚’ç”»åƒå‡¦ç†ã§å®Ÿç¾ã•ã›ã‚‹2.5Dãƒ–ãƒ©ãƒ¼æŠ€æ³• å‰å›žã®ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆãƒ»ãƒ¢ãƒ¼ã‚·ãƒ§ãƒ³ãƒ»ãƒ–ãƒ©ãƒ¼(ã‚¢ã‚¯ã‚·ãƒ§ãƒ³ãƒ»ãƒ–ãƒ©ãƒ¼)ã¨ã¯ã‚ˆãä¼¼ã¦ã„ã‚‹ãŒã€å¾®å¦™ã«å®Ÿè£…ã®ç•°ãªã‚‹æ‰‹æ³•ãŒ2003å¹´ã®ã‚²ãƒ¼ãƒ é–‹ç™ºè€…ä¼šè°ã€ŒGDC 2003ã€ã«ã¦NVIDIAã®Simon Greenæ°ã‚ˆã‚Šç™ºè¡¨ã•ã‚ŒãŸã€‚ãã‚ŒãŒã€Œ2.5Dãƒ–ãƒ©ãƒ¼ã€ã¨å‘¼ã°ã‚Œã‚‹æ‰‹æ³•ã ã€‚ã“ã‚Œã¯ã‚«ãƒ—ã‚³ãƒ³ã®ã€Œãƒã‚¹ãƒˆãƒ—ãƒ©ãƒãƒƒãƒˆã€ã‚„CRYTEKã®ã€ŒCRYSISã€ãŒåŠ¹æžœçš„ã«å®Ÿè£…ã—ãŸã“ã¨ã§ã€ãã®æœ‰åŠ¹æ€§ãŒåºƒãçŸ¥ã‚‰ã‚Œã‚‹ã“ã¨ã¨ãªã£ãŸã€‚ åŸºæœ¬æ–¹é‡ã¯ä»¥ä¸‹ã®ã‚ˆã†ãªæ‰‹é †ã«ãªã‚‹ã€‚ ã¾ãšã€ã‚·ãƒ¼ãƒ³ã‚’é€šå¸¸é€šã‚Šã«ãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ã—ã€ã“ã‚Œã‚’å¾Œã®ãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ãƒ‘ã‚¹ã§å‚ç…§ã™ã‚‹ãŸã‚ã®ç´ æã¨ã™ã‚‹ã€‚ ãƒ–ãƒ©ãƒ¼ã‚’å‡ºã—ãŸã„å¯¾è±¡3Dã‚ªãƒ–ã‚·ã‚§ã‚¯ãƒˆã®é ‚ç‚¹ã«ã¯å‰ãƒ•ãƒ¬ãƒ¼ãƒ ã®ç”»é¢ä¸Šã®åº§æ¨™ã‚’ä¿æŒã—ã¦ãŠãã€é ‚ç‚¹ã‚·ã‚§ãƒ¼ãƒ€ã§ã€ç¾åœ¨ãƒ•ãƒ¬ãƒ¼ãƒ ã®ç”»é¢åº§æ¨™ä½ç½®ã‚’è¨ˆç®—ã—ã¦ã€ä¿æŒã—ã¦ãŠã„ãŸå‰ãƒ•ãƒ¬ãƒ¼ãƒ ã®ç”»é¢åº§æ¨™
agw 2008/12/30
GPU

CG

Theory
ãƒªãƒ³ã‚¯
ã€ã‚³ãƒ©ãƒ ã€‘3Dã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ãƒ»ãƒžãƒ‹ã‚¢ãƒƒã‚¯ã‚¹ (34) ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€(5)ã€œã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’æ´»ç”¨ã—ãŸæ–°è¡¨ç¾(1) | ãƒ‘ã‚½ã‚³ãƒ³ | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’æ´»ç”¨ã—ãŸæ–°è¡¨ç¾(1)ã€œãƒ¢ãƒ¼ã‚·ãƒ§ãƒ³ãƒ–ãƒ©ãƒ¼ ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã®æ´»ç”¨æ–¹é‡ã®äºŒã¤ç›®ã€ã€Œã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’æ´»ç”¨ã—ãŸæ–°è¡¨ç¾ã€ã¨ã¯ã€ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’ç”¨ã„ã‚‹ã“ã¨ã§ã€ã“ã‚Œã¾ã§ã®GPUã§ã¯é›£ã—ã‹ã£ãŸè¡¨ç¾ã‚’è¡Œãˆã‚‹ã‚ˆã†ã«ã™ã‚‹ã‚‚ã®ã«ãªã‚‹ã€‚ å¾ã€…ã«ãƒ¦ãƒ‹ãƒ¼ã‚¯ãªãƒ†ã‚¯ãƒ‹ãƒƒã‚¯ãŒç™»å ´ã—å§‹ã‚ã¦ã„ã‚‹ãŒã€ã“ã“ã§ã¯æœ€ã‚‚åŸºæœ¬çš„ãªã‚‚ã®ã‚’ç´¹ä»‹ã—ãŸã„ã€‚ æ¯”è¼ƒçš„ã€å®Ÿè£…ãŒã‚·ãƒ³ãƒ—ãƒ«ã§ã€åŠ¹æžœã®å¤§ãã„ã®ãŒã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’æ´»ç”¨ã—ãŸãƒ¢ãƒ¼ã‚·ãƒ§ãƒ³ãƒ–ãƒ©ãƒ¼ã ã€‚ å®Ÿã¯ã€ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã‚’ä½¿ã£ãŸãƒ¢ãƒ¼ã‚·ãƒ§ãƒ³ãƒ–ãƒ©ãƒ¼ã«ã¯ã„ãã¤ã‹ã®ç¨®é¡žãŒã‚ã‚‹ã€‚ã“ã“ã§ã¯ãã®ã†ã¡3ãƒ‘ã‚¿ãƒ¼ãƒ³ã‚’ç´¹ä»‹ã™ã‚‹ã€‚ ã¾ãšã¯ãƒ¢ãƒ¼ã‚·ãƒ§ãƒ³ãƒ–ãƒ©ãƒ¼ã¨ã¯ä½•ã‹ã€‚ã“ã®åŸºæœ¬ã‚’æ•´ç†ã—ã¦ãŠã“ã†ã€‚ ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ã®ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿ã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ã¯ã€ã‚ã‚‹æ„å‘³ã€ã‚·ãƒ£ãƒƒã‚¿ãƒ¼é€Ÿåº¦1/âˆžç§’ã®ã‚«ãƒ¡ãƒ©ã§æ’®å½±ã—ã¦ã„ã‚‹ã®ã¨åŒã˜ã§ã‚ã‚‹ãŸã‚ã«ã€ã©ã‚“ãªã«è¢«å†™ä½“ãŒé«˜é€Ÿã§å‹•ã„ã¦ã„ã¦ã‚‚ã€ç”Ÿæˆã—ãŸãƒ•ãƒ¬ãƒ¼ãƒ ãŒãƒœã‚±ã‚‹ã“ã¨ã¯ãªã„ã€‚ã“ã‚ŒãŒã€Œã„ã‹
agw 2008/12/30
GPU

CG

Theory
ãƒªãƒ³ã‚¯
ã€ã‚³ãƒ©ãƒ ã€‘3Dã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ãƒ»ãƒžãƒ‹ã‚¢ãƒƒã‚¯ã‚¹ (33) ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€(4)ã€œã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã®ã‚¢ã‚¯ã‚»ãƒ©ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³çš„æ´»ç”¨(4) | ãƒ‘ã‚½ã‚³ãƒ³ | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã®ã‚¢ã‚¯ã‚»ãƒ©ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³çš„æ´»ç”¨(4)ã€œãƒ•ã‚¡ãƒ¼ã‚·ã‚§ãƒ¼ãƒ€ã‚’åŠ é€Ÿã™ã‚‹/ãã®3ã€œãƒ•ã‚¡ãƒ¼ã‚·ã‚§ãƒ¼ãƒ€ã®å¿œç”¨ ã‚·ã‚§ãƒ«æ³•ã¯ã€ãƒ•ã‚£ãƒ³æ³•ã¨ã¯é€†ã«ã€æ¯›å…ˆã®å»¶é•·ç·šä¸Šã«è¦–ç·šãŒã‚ã‚‹ã‚ˆã†ãªã€è¦–ç·šã¨æ¯›ã®å…ˆç«¯ãŒç›¸å¯¾ã—ãã†ãªãã‚‰ã„ã®ä½ç½®é–¢ä¿‚ã®ã¨ãã«ã€ãµã‚“ã‚ã‚Šã¨ã—ãŸãƒœãƒªãƒ¥ãƒ¼ãƒ æ„ŸãŒå¾—ã‚‰ã‚Œã‚‹ãƒ•ã‚¡ãƒ¼ã‚·ã‚§ãƒ¼ãƒ€ã ã€‚ ãƒ•ã‚£ãƒ³æ³•ã¨ã‚·ã‚§ãƒ«æ³•ã¯å…±ã«è£œé–“é–¢ä¿‚ã«ã‚ã‚‹ã®ã§ã€å®Ÿéš›ã«æ¯›ã‚€ãã˜ã‚ƒã‚‰ã®ã‚ãƒ£ãƒ©ã‚¯ã‚¿ã‚’ãƒªã‚¢ãƒ«ã«è¡¨ç¾ã—ã‚ˆã†ã¨ã™ã‚‹å ´åˆã¯ä¸¡æ–¹ã‚’åŒæ™‚ã«çµ„ã¿åˆã‚ã›ã¦ä½¿ç”¨ã™ã‚‹ã®ãŒè‰¯ã„ã¨ã•ã‚Œã‚‹ã€‚ ã“ã‚Œã‚’ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ç„¡ã—ã§ã‚„ã‚ã†ã¨ã™ã‚‹ã¨äº‹å‰ã«æ¯›ãƒ’ãƒ¬ã¯æ¤ãˆè¾¼ã¾ãªãã¦ã¯ã„ã‘ãªã„ã—ã€æ¯›ã®æ–é¢å›³ãƒãƒªã‚´ãƒ³ã‚’äº‹å‰ã«ç©å±¤ã•ã›ãªã‘ã‚Œã°ãªã‚‰ãšã€ä½•ã‹ã¨å¤§å¤‰ã ã€‚ ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ãŒã‚ã‚Œã°ã€äºŒç¨®é¡žã®"æ¯›ç”Ÿãˆ"ã‚’ã€äº‹å‰æº–å‚™ç„¡ã—ã§ä¸¡æ–¹å®Ÿè·µã™ã‚‹ã“ã¨ãŒã§ãã‚‹ã€‚ ãƒ•ã‚£ãƒ³ã¨ã‚·ã‚§ãƒ«ã‚’ä¸¡æ–¹å®Ÿè£…ã—ãŸNVIDIAã®ãƒ‡ãƒ¢ã®å®Ÿè£…ä¾‹ ã‚ˆã‚Šé«˜åº¦ãªå®Ÿè£…ã«ã™ã‚‹ãªã‚‰ã°ã€æ¯›ã‚’ç”Ÿã‚„ã™åœ°è‚Œãƒãƒªã‚´
agw 2008/12/30
GPU

CG

Theory
ãƒªãƒ³ã‚¯
ã€ã‚³ãƒ©ãƒ ã€‘3Dã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ãƒ»ãƒžãƒ‹ã‚¢ãƒƒã‚¯ã‚¹ (32) ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€(3)ã€œã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã®ã‚¢ã‚¯ã‚»ãƒ©ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³çš„æ´»ç”¨(3) | ãƒ‘ã‚½ã‚³ãƒ³ | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã®ã‚¢ã‚¯ã‚»ãƒ©ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³çš„æ´»ç”¨(3)ã€œãƒ•ã‚¡ãƒ¼ã‚·ã‚§ãƒ¼ãƒ€ã‚’åŠ é€Ÿã™ã‚‹/ãã®2ã€œã‚·ã‚§ãƒ«æ³•ã®ãƒ•ã‚¡ãƒ¼ã‚·ã‚§ãƒ¼ãƒ€ ãƒ•ã‚£ãƒ³æ³•ã§ç”Ÿæˆã•ã‚ŒãŸãƒ•ã‚¡ãƒ¼ã¯ã€æ¯›ãƒ’ãƒ¬ã‚’å´é¢ã«è¿‘ã„æ–¹å‘ã‹ã‚‰è¦‹ãŸå ´åˆã¯ãƒ•ã‚µãƒ•ã‚µã¨ã—ãŸæ„Ÿã˜ãŒå¾—ã‚‰ã‚Œã‚‹ã®ã ãŒã€æ¯›å…ˆãŒè¦–ç·šæ–¹å‘ã«è¿‘ã„å ´åˆã€ã™ãªã‚ã¡æ¯›ãƒ’ãƒ¬ã‚’ç›´ä¸‹ã§è¦‹ä¸‹ã‚ã™ã‚ˆã†ãªæ–¹å‘é–¢ä¿‚ã§è¦‹ãŸã¨ãã«ã¯æ¯›ã®ãƒœãƒªãƒ¥ãƒ¼ãƒ æ„Ÿã«ä¹ã—ããªã‚‹ã¨ã„ã†å¼±ç‚¹ãŒã‚ã‚‹ã€‚ ã‚‚ã†ä¸€ã¤ã®ãƒ•ã‚¡ãƒ¼ã‚·ã‚§ãƒ¼ãƒ€ã¯ã€ãƒ•ã‚£ãƒ³æ³•ã®ãƒ•ã‚¡ãƒ¼ã‚·ã‚§ãƒ¼ãƒ€ã®å¼±ç‚¹ã‚’è£œé–“ãƒ»å…‹æœã™ã‚‹ã‚ˆã†ãªç‰¹é•·ã‚’æŒã¤æŠ€æ³•ã ã€‚ ãƒ•ã‚£ãƒ³æ³•ã§ã¯æ¯›ã‚’ç¸¦æ–¹å‘ã«åˆ‡ã£ãŸæ–é¢å›³ã‚’ç”¨æ„ã—ãŸãŒã€ã‚‚ã†ä¸€ã¤ã®æ–¹æ³•ã§ã¯ã€ç”Ÿãˆã¦ã„ã‚‹æ¯›ã‚’æ¨ªæ–¹å‘ã«è¼ªåˆ‡ã‚Šã«ã—ãŸã‚ˆã†ãªæ–é¢å›³ã‚’ç”¨æ„ã—ã€ã“ã‚Œã‚’ç´™ã‚’ç©ã¿é‡ãã‚‹ã‚ˆã†ãªæ„Ÿã˜ã§ä¸€å®šé–“éš”ã‚’é–‹ã‘ã€é‡ãã¦æã„ã¦ã„ãã€‚è¼ªåˆ‡ã‚Šã«ã—ãŸæ–é¢å›³ã‚’é‡ãã¦å…ƒã«æˆ»ã™ã‚ˆã†ãªã‚¤ãƒ¡ãƒ¼ã‚¸ã«ãªã‚Šã€ã“ã‚ŒãŒä¸åº¦å¤–çš®(Shell)ã‚’å½¢æˆã™ã‚‹ã‚ˆã†ã«ç©å±¤ã•ã›ã‚‹æ„Ÿã˜ã§ã‚ã‚‹ã“ã¨ã‹ã‚‰ã€ã“ã®ã‚¢ãƒ—ãƒãƒ¼ãƒã®ãƒ•ã‚¡ãƒ¼ã‚·ã‚§ãƒ¼ãƒ€ã¯
agw 2008/12/30
GPU

CG

Theory
ãƒªãƒ³ã‚¯
ã€ã‚³ãƒ©ãƒ ã€‘3Dã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ãƒ»ãƒžãƒ‹ã‚¢ãƒƒã‚¯ã‚¹ (31) ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€(2)ã€œã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã®ã‚¢ã‚¯ã‚»ãƒ©ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³çš„æ´»ç”¨(2) | ãƒ‘ã‚½ã‚³ãƒ³ | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
3Dã‚ãƒ£ãƒ©ã‚¯ã‚¿ã«æ¯›ã‚’ç”Ÿã‚„ã™ã€Œãƒ•ã‚¡ãƒ¼(æ¯›)ã‚·ã‚§ãƒ¼ãƒ€ã€(Fur Shader)ã¨å‘¼ã°ã‚Œã‚‹ãƒ†ã‚¯ãƒ‹ãƒƒã‚¯ãŒã‚ã‚‹ã€‚ ã“ã®ãƒ•ã‚¡ãƒ¼ã‚·ã‚§ãƒ¼ãƒ€ã«ã¯å¤§åˆ¥ã—ã¦äºŒé€šã‚Šã®æ–¹æ³•ãŒã‚ã‚Šã€ã“ã‚Œã‚‰ã®ã©ã¡ã‚‰ã‹ã€ã‚ã‚‹ã„ã¯ä¸¡æ–¹ã‚’çµ„ã¿åˆã‚ã›ã¦æ´»ç”¨ã™ã‚‹ã“ã¨ãŒä¸€èˆ¬çš„ã«ãªã£ã¦ã„ã‚‹ã€‚ ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã®ã‚¢ã‚¯ã‚»ãƒ©ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³çš„æ´»ç”¨(2)ã€œãƒ•ã‚¡ãƒ¼ã‚·ã‚§ãƒ¼ãƒ€ã‚’åŠ é€Ÿã™ã‚‹/ãã®1ã€œãƒ•ã‚£ãƒ³æ³•ã®ãƒ•ã‚¡ãƒ¼ã‚·ã‚§ãƒ¼ãƒ€ 1ã¤ã¯æ¯›ã‚’æã„ãŸãƒ†ã‚¯ã‚¹ãƒãƒ£ã‚’è²¼ã‚Šä»˜ã‘ãŸãƒãƒªã‚´ãƒ³ã‚’3Dã‚ãƒ£ãƒ©ã‚¯ã‚¿ã«æ¤ãˆè¾¼ã‚€ã‚¢ãƒ—ãƒãƒ¼ãƒã®ã€Œãƒ•ã‚£ãƒ³(Fin:ãƒ’ãƒ¬)ã€æ³•ã ã€‚ "æ¯›ãƒ’ãƒ¬"ã‚’æ¤ãˆè¾¼ã‚“ã§æ¯›ã‚’å†ç¾ã™ã‚‹ãƒ•ã‚£ãƒ³æ³•ã€‚æ¯›ãƒ’ãƒ¬ã‚’é€£çµã•ã›ã¦é•·é«ªã‚’è¡¨ç¾ã™ã‚‹å ´åˆã‚‚ã‚ã‚‹ ã“ã®æ‰‹æ³•ã§ã¯ã€äº‹å‰ã«3Dã‚ãƒ£ãƒ©ã‚¯ã‚¿ã«æ¤æ¯›ã‚’ã™ã‚‹ã‚ˆã†ã«æ¯›ãƒ’ãƒ¬ã‚’3Dã‚ãƒ£ãƒ©ã‚¯ã‚¿æœ¬ä½“ã«æ¤ãˆè¾¼ã‚“ã§ãŠãå¿…è¦ãŒã‚ã‚‹ã€‚ ã“ã®æ–¹æ³•ã§ã¯ã€æ¯›ã®æœ‰ç„¡ãªã©ãŒåˆ†ã‹ã‚Šã«ãã„ã»ã©è¦–ç‚¹ã‹ã‚‰é ã„ä½ç½®ã®3Dã‚ãƒ£ãƒ©ã‚¯ã‚¿ã«ãŠã„ã¦ã‚‚ã€GPUã¯æ¤ãˆè¾¼ã‚“ã æ¯›ã®é ‚ç‚¹å‡¦ç†ã‚„ãƒ”ã‚¯ã‚»ãƒ«æç”»ã‚’è¡Œã†å¿…
agw 2008/12/30
GPU

CG

Theory
ãƒªãƒ³ã‚¯
ã€ã‚³ãƒ©ãƒ ã€‘3Dã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ãƒ»ãƒžãƒ‹ã‚¢ãƒƒã‚¯ã‚¹ (30) ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€(1)ã€œã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã®ã‚¢ã‚¯ã‚»ãƒ©ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³çš„æ´»ç”¨(1) | ãƒ‘ã‚½ã‚³ãƒ³ | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
2007å¹´1æœˆã€Windows Vistaã®ç™»å ´ã¨å…±ã«DirectX 10ãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã€åŒæ™‚ã«ãƒ—ãƒã‚°ãƒ©ãƒžãƒ–ãƒ«ã‚·ã‚§ãƒ¼ãƒ€ä»•æ§˜(SM:Shader Model)ã¯4.0ã¸ã¨ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã‚¢ãƒƒãƒ—ãŒãªã•ã‚ŒãŸã€‚ã“ã®SM4.0ã§æœ€å¤§ã®ãƒˆãƒ”ãƒƒã‚¯ã¨ã„ãˆã‚‹ã®ãŒã€Œã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€(Geometry Shader)ã€ã®æ–°è¨ã ã€‚ã“ã‚Œã¯ã€ã“ã‚Œã¾ã§GPUå†…éƒ¨ã§ã¯è¡Œãˆãªã‹ã£ãŸé ‚ç‚¹ã‚’å¢—æ¸›ã‚’å¯èƒ½ã«ã™ã‚‹ç”»æœŸçš„ãªä»•çµ„ã¿ã ã€‚ ã¾ã èª•ç”Ÿã—ã¦é–“ã‚‚ãªã„æ©Ÿèƒ½ã§ã‚ã‚‹ãŸã‚ã€ãã®å¿œç”¨æ–¹æ³•ã¯ç¾åœ¨ã‚‚å„é–‹ç™ºã‚·ãƒ¼ãƒ³ã«ãŠã„ã¦æœªã ç ”ç©¶ãŒé€²è¡Œã—ã¦ã„ã‚‹ã¨ã„ã†çŠ¶æ³ã ãŒã€å¾ã€…ã«ãƒ¦ãƒ‹ãƒ¼ã‚¯ãªä½¿ã„æ–¹ã‚‚ç™»å ´ã—ã¤ã¤ã‚ã‚‹ã€‚ ã“ã“ã§ã¯ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã®ä»£è¡¨çš„ãªæ´»ç”¨ã®ä»•æ–¹ã‚’ã„ãã¤ã‹ç´¹ä»‹ã™ã‚‹ã€‚ ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã¨ã¯? æœ¬é€£è¼‰åºç›¤ã®æ–¹ã§ã‚‚è§¦ã‚ŒãŸã‚ˆã†ã«ã€ã‚¸ã‚ªãƒ¡ãƒˆãƒªã‚·ã‚§ãƒ¼ãƒ€ã¯DirectX 10/SM4.0ç’°å¢ƒã§ãªã„ã¨ä½¿ãˆãªã„ã€‚DirectX 10ã¯Windows Vistaã«å°‚ç”¨ä¾›
agw 2008/12/30
GPU

CG

Theory
ãƒªãƒ³ã‚¯
ã€ã‚³ãƒ©ãƒ ã€‘3Dã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ãƒ»ãƒžãƒ‹ã‚¢ãƒƒã‚¯ã‚¹ (44) HDRãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°(4)ã€œHDRãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ã®ç¬¬ä¸‰ã®åŠ¹èƒ½ | ãƒ‘ã‚½ã‚³ãƒ³ | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
HDRãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ç¬¬ä¸‰ã®åŠ¹èƒ½ã€œã¾ã¶ã—ã•ã®è¡¨ç¾ãŒå¯èƒ½ã«ãªã‚‹ äººé–“ã®ç›®ã‚„ã‚«ãƒ¡ãƒ©ã§é«˜è¼åº¦ã®ã‚‚ã®ã‚’è¦‹ã‚‹ã¨ã€ãã®å…‰ãŒæº¢ã‚Œå‡ºã¦è¦‹ãˆã‚‹ã‚ˆã†ãªè¦–è¦šåŠ¹æžœãŒå¾—ã‚‰ã‚Œã‚‹ã€‚ã“ã‚Œã¯ã€ãŸã¨ãˆå‰è¿°ã—ãŸéœ²å‡ºè£œæ£ãŒã¡ã‚ƒã‚“ã¨ã—ã¦ã„ã¦ã‚‚ã€æ¥µç«¯ã«æ˜Žã‚‹ã„ç®‡æ‰€ã¯ãã†è¦‹ãˆã‚‹ã€‚ ã¾ãŸã€ãã®é«˜è¼åº¦ãªç‰©ä½“ã®å§¿ã®å¤§åŠãŒé®è”½ç‰©ã«é®ã‚‰ã‚Œã¦ã„ã¦ã‚‚ã€é«˜è¼åº¦ç‰©ä½“ãŒä¸€éƒ¨ã§ã‚‚é®è”½ç‰©ã‹ã‚‰é ã‚’è¦—ã‹ã›ã¦ã„ã‚Œã°ã€é®è”½ç‰©ã¨ã®å‰å¾Œé–¢ä¿‚ã‚’è¶…è¶Šã—ã¦ã€å¼·ã„å…‰ãŒã“ã¡ã‚‰ã«æ¼ã‚Œã¦ãã‚‹ã‚ˆã†ã«è¦‹ãˆã‚‹ã€‚ èº«è¿‘ãªä¾‹ã§è¡Œã‘ã°ã€å¤ã®æ˜¼é–“ã€æœ¨é™°ã‹ã‚‰ç©ºã‚’è¦‹ä¸Šã’ã€æžã‚„è‘‰è¶Šã—ã«å¤ªé™½ã‚’è¦‹ã‚‹ã¨ã€æžã‚„è‘‰ã®é®è”½ã‚’è¶…ãˆã¦å…‰ãŒã±ãƒ¼ã£ã¨æ”¾å°„çŠ¶ã«åºƒãŒã£ã¦è¦‹ãˆã‚‹ã¨ã„ã†ä½“é¨“ã‚’ã—ãŸã“ã¨ãŒã‚ã‚‹ã ã‚ã†ã€‚ ã“ã‚Œã¯ãã‚ã‚ã¦è¼åº¦ã®é«˜ã„å…‰ã®ãƒ¬ãƒ³ã‚ºå†…åå°„ã®çµæžœã§ã‚ã£ãŸã‚Šã€ç›®ã®ç«æ¯›(ã¾ã¤ã’)ã®ã¨ã“ã‚ã§å…‰ãŒå›žæŠ˜ã—ãŸã‚Šã™ã‚‹ç¾è±¡ãŒã€ãã†ã„ã£ãŸè¦‹ãˆæ–¹ã‚’ã•ã›ã¦ã„ã‚‹ã¨ã„ã‚ã‚Œã¦ã„ã‚‹ã€‚ HDRãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ã®ç¬¬ä¸‰ã®åŠ¹èƒ½ã¯ã€ã“ã†ã—ãŸé«˜è¼åº¦éƒ¨åˆ†ã®è¡¨ç¾ã‚’å·¥å¤«ã™ã‚‹
agw 2008/12/30
CG

Theory

GPU
ãƒªãƒ³ã‚¯
ã€ã‚³ãƒ©ãƒ ã€‘3Dã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ãƒ»ãƒžãƒ‹ã‚¢ãƒƒã‚¯ã‚¹ (43) HDRãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°(3)ã€œHDRãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ã®ç¬¬äºŒã®åŠ¹èƒ½ | ãƒ‘ã‚½ã‚³ãƒ³ | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
HDRãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ç¬¬äºŒã®åŠ¹èƒ½ã€œéœ²å‡ºã®ã‚·ãƒŸãƒ¥ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ãŒè¡Œãˆã‚‹ ç¬¬ä¸€ã®åŠ¹èƒ½ã¯ã€åŸ‹ã‚‚ã‚Œã¦ã„ãŸä½Žã„åå°„çŽ‡ã®é™°å½±ãŒè¦‹ãˆã‚‹ã‚ˆã†ã«ãªã‚‹â€¦â€¦ã¨ã„ã†ã‚ˆã†ãªã‚ã‹ã‚Šã‚„ã™ã„ä¾‹ã ã£ãŸãŒã€é€†ã«ã€é«˜è¼åº¦ã®å…‰æºã§é«˜åå°„çŽ‡ã®æè³ª(é‡‘å±žã®ã‚ˆã†ãªé¡é¢åå°„ãªã©)ã§ã¯å½“ç„¶ã€é™°å½±å‡¦ç†ã®çµæžœã¯ãƒ‡ã‚£ã‚¹ãƒ—ãƒ¬ã‚¤è¡¨ç¤ºè‰²ã‚’è¶…ãˆãŸè‰²(è¼åº¦)ã«ãªã£ã¦ã—ã¾ã†ã€‚ç¾åœ¨ã€ä¸€éƒ¨ã®ãƒ¡ãƒ¼ã‚«ãƒ¼ã‹ã‚‰ãƒã‚¤ãƒ€ã‚¤ãƒŠãƒŸãƒƒã‚¯ãƒ¬ãƒ³ã‚¸ãƒ‡ã‚£ã‚¹ãƒ—ãƒ¬ã‚¤è£…ç½®ã¨ã„ã†ã‚‚ã®ãŒç™ºå£²ã•ã‚Œå§‹ã‚ã¦ã„ã‚‹ãŒã€ã¾ã ã¾ã é«˜ä¾¡ã§ä¸€èˆ¬å‘ã‘ã§ã¯ãªã„ã€‚ ã‚ˆã£ã¦ã€HDRãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ã«ã‚ˆã£ã¦ç”Ÿæˆã•ã‚ŒãŸãƒ•ãƒ¬ãƒ¼ãƒ (æ˜ åƒ)ã‚’ã€ä¸€èˆ¬ã«æ™®åŠã—ã¦ã„ã‚‹ãƒ‡ã‚£ã‚¹ãƒ—ãƒ¬ã‚¤ã§è¡¨ç¤ºã™ã‚‹ã«ã¯ã€ã©ã†ã—ã¦ã‚‚ã€Œè¡¨ç¤ºã™ã‚‹ãŸã‚ã®èª¿æ•´(â‰’æ¸›è‰²)åŠ å·¥å‡¦ç†ã€ãŒå¿…è¦ã«ãªã£ã¦ãã‚‹ã€‚ã“ã®å‡¦ç†ç³»ã¯ã€Œãƒˆãƒ¼ãƒ³ãƒžãƒƒãƒ”ãƒ³ã‚°ã€(Tone Mapping)ã¨å‘¼ã°ã‚Œã€åºƒç¾©ã«ã¯ã€ã“ã®å‡¦ç†ã‚’å«ã‚ã¦HDRãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ã¨å‘¼ã¶ã“ã¨ã‚‚ã‚ã‚‹ã€‚ æ—§BRIGHTSIDEç¤¾(ç¾åœ¨ã¯DolbyãŒè²·åŽå–å¾—)
agw 2008/12/30
GPU

CG

Theory
ãƒªãƒ³ã‚¯
1 2 3 4 5 6 7 8 9 æ¬¡ã®ãƒšãƒ¼ã‚¸

ãŠçŸ¥ã‚‰ã›

ã‚‚ã£ã¨èªã‚€

å…¬å¼Twitter

@HatenaBookmark
ãƒªãƒªãƒ¼ã‚¹ã€éšœå®³æƒ…å ±ãªã©ã®ã‚µãƒ¼ãƒ“ã‚¹ã®ãŠçŸ¥ã‚‰ã›
@hatebu
æœ€æ–°ã®äººæ°—ã‚¨ãƒ³ãƒˆãƒªãƒ¼ã®é…ä¿¡

ã‚ãƒ¼ãƒœãƒ¼ãƒ‰ã‚·ãƒ§ãƒ¼ãƒˆã‚«ãƒƒãƒˆä¸€è¦§

jæ¬¡ã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

kå‰ã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

lã‚ã¨ã§èªã‚€

eã‚³ãƒ¡ãƒ³ãƒˆä¸€è¦§ã‚’é–‹ã

oãƒšãƒ¼ã‚¸ã‚’é–‹ã

è¨å®šã‚’å¤‰æ›´ã—ã¾ã—ãŸx