{"id":483,"date":"2007-09-10T14:24:00","date_gmt":"2007-09-10T14:24:00","guid":{"rendered":"http:\/\/www.gisdeveloper.co.kr\/?p=483"},"modified":"2017-01-29T11:10:46","modified_gmt":"2017-01-29T02:10:46","slug":"opengl-shader-17-1","status":"publish","type":"post","link":"http:\/\/www.gisdeveloper.co.kr\/?p=483","title":{"rendered":"OpenGL Shader – 18"},"content":{"rendered":"

GLSL \uc608\uc81c : Color Shader<\/strong>
\n\uc6d0\ubb38 : http:\/\/www.lighthouse3d.com\/opengl\/glsl\/index.php?color<\/a><\/p>\n

GLSL\uc740 OpenGL \uc0c1\ud0dc\uc758 \uc77c\ubd80\ubd84\uc5d0 \uc811\uadfc\ud560 \uc218 \uc788\ub2e4. \uc774 \uc139\uc158\uc5d0\uc11c\ub294 glColor\ub97c \uc0ac\uc6a9\ud558\ub294 OpenGL \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc0c9\uc0c1\uc5d0 \uc5b4\ub5bb\uac8c \uc811\uadfc\ud558\ub294\uc9c0\ub97c \uc0b4\ud3b4\ubcf4\uaca0\ub2e4.<\/p>\n

GLSL\uc740 \ud604\uc7ac\uc758 \uc0c9\uc0c1\uc5d0 \ub300\ud55c \u00a0Attribute \ubcc0\uc218\ub97c \uac00\uc9c0\uace0 \uc788\ub2e4. \ub610\ud55c \ubc84\ud14d\uc2a4 \uc250\uc774\ub354\ub85c\ubd80\ud130 \ud504\ub808\uadf8\uba3c\ud2b8 \uc250\uc774\ub354\ub85c \uc804\ub2ec\ub418\ub294 \uc0c9\uc0c1\uc744 \uc5bb\uae30 \uc704\ud55c Varying \ubcc0\uc218\ub97c \uac00\uc9c0\uace0 \uc788\ub2e4.<\/p>\n

attribute vec4 gl_Color;\r\n\r\nvarying vec4 gl_FrontColor; \/\/ \ubc84\ud14d\uc2a4 \uc250\uc774\ub354\uc5d0\uc11c \uc4f0\uae30 \uac00\ub2a5\r\nvarying vec4 gl_BackColor; \/\/ \ubc84\ud14d\uc2a4 \uc250\uc774\ub354\uc5d0\uc11c \uc4f0\uae30 \uac00\ub2a5\r\n\r\nvarying vec4 gl_Color; \/\/ \ud504\ub808\uadf8\uba3c\ud2b8 \uc250\uc774\ub354\uc5d0\uc11c \uc77d\uae30 \uac00\ub2a5<\/code><\/pre>\n
\uc544\uc774\ub514\uc5b4\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n
    \n
  1. OpenGL \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc740 glColor \ud568\uc218\ub97c \uc0ac\uc6a9\ud574\uc11c \uc0c9\uc0c1\uac12\uc744 \ubcf4\ub0b8\ub2e4.<\/li>\n
  2. \ubc84\ud14d\uc2a4 \uc250\uc774\ub354\ub294 gl_Color Attribute \ubcc0\uc218\ub85c \uc0c9\uc0c1\uac12\uc744 \ubc1b\ub294\ub2e4.<\/li>\n
  3. \ubc84\ud14d\uc2a4 \uc250\uc774\ub354\ub294 \uc55e\uba74\uacfc \ub4b7\uba74\uc758 \uc0c9\uc0c1\uc744 \uacc4\uc0b0\ud558\uace0, gl_FrontColor\uacfc gl_BackColor\uc5d0 \uc800\uc7a5\ud55c\ub2e4.<\/li>\n
  4. \ud504\ub808\uadf8\uba3c\ud2b8 \uc250\uc774\ub354\ub294 gl_Color Varying \ubcc0\uc218\ub85c \ubcf4\uac04\ub41c \uc0c9\uc0c1\uc744 \ubc1b\ub294\ub370, \uc774 \uc0c9\uc0c1\uc740 \ud604\uc7ac\uc758 \ud504\ub9ac\ubbf8\ud2f0\ube0c\uc758 \ubc29\ud5a5\uc5d0 \ub530\ub77c \ub2e4\ub974\ub2e4. \uc608\ub97c\ub4e4\uc5b4 \ubcf4\uac04\uc740 gl_FrontColor\ub098 gl_BackColor \uac12\uc744 \uc0ac\uc6a9\ud574\uc11c \ubcf4\uac04\ub41c\ub2e4.<\/li>\n
  5. \ud504\ub808\uadf8\uba3c\ud2b8 \uc250\uc774\ub354\ub294 gl_Color \uac12\uc5d0 \uae30\ubc18\ud574\uc11c gl_FragColor\ub97c \uc124\uc815\ud55c\ub2e4.<\/li>\n<\/ol>\n
    varying \ubcc0\uc218\ub294 \ubc84\ud14d\uc2a4 \uc250\uc774\ub354\uc640 \ud504\ub808\uadf8\uba3c\ud2b8 \uc250\uc774\ub354 \ubaa8\ub450\uc5d0\uc11c \uac19\uc740 \uc774\ub984\uc73c\ub85c \uc120\uc5b8\ub418\uc5b4\uc838\uc57c\ud55c\ub2e4. \uc5ec\uae30\uc11c\uc758 \ud30c\uc545\ud574\uc57c\ud560 \uc8fc\uc694 \ub0b4\uc6a9\uc740, \ubc84\ud14d\uc2a4 \uc250\uc774\ub354\uc548\uc5d0\ub294 2\uac1c\uc758 \ubcc0\uc218\uac00 \uc788\ub294\ub370, \ubc14\ub85c gl_FrontColor\uc640 gl_BackColor\uc774\uba70, \ud604\uc7ac\uc758 \ud504\ub9ac\ubbf8\ud2f0\ube0c\uc758 \uba74\uc758 \ubc29\ud5a5\uc5d0 \ub530\ub77c gl_Color\uc758 \uac12\uc774 \uc790\ub3d9\uc73c\ub85c \uc0b0\ucd9c\ub418\uc5b4 \uc9c4\ub2e4\ub294 \uac83\uc774\ub2e4. \uc5ec\uae30\uc11c gl_Color Attribute \ubcc0\uc218\uc640 gl_Color Varying \ubcc0\uc218 \uc0ac\uc774\uc5d0\ub294 \uc5b4\ub5a4 \ucda9\ub3cc\ub3c4 \uc5c6\ub2e4\ub294 \uc810\uc778\ub370, gl_Color Attribute \ubcc0\uc218\ub294 \ubc84\ud14d\uc2a4 \uc250\uc774\ub354\uc5d0\uc11c\ub9cc \ubcfc \uc218 \uc788\uace0 gl_Color Varying \ubcc0\uc218\ub294 \ud504\ub808\uadf8\uba3c\ud2b8 \uc250\uc774\ub354\uc5d0\uc11c \ubcfc \uc218 \uc788\uae30 \ub54c\ubb38\uc774\ub2e4.<\/p>\n
    \uc124\uba85\uc740 \ucda9\ubd84\uc774 \ud588\uace0, \ubc84\ud14d\uc2a4 \uc250\uc774\ub354\uc5d0 \ub300\ud55c \ucf54\ub4dc\ub97c \uc0b4\ud3b4\ubcf4\uc790. \uc5ec\uae30\uc11c \uc55e\uba74\uc758 \uc0c9\uc774 \uacc4\uc0b0\ub418\uc5b4\uc84c\ub2e4.<\/p>\n
    void main()\r\n{\r\n    gl_FrontColor = gl_Color;\r\n    gl_Position = ftransform();\r\n}<\/code><\/pre>\n
    \uc704\uc758 \ucf54\ub4dc\ub97c \ub4e4\uc5ec\ub2e4\ubcf4\uba74, gl_Color\ub294 Attribute \ubcc0\uc218\ub85c\uc368 OpenGL \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc758 glColor\ub97c \ud1b5\ud574 \uac12\uc774 \uc9c0\uc815\ub41c\ub2e4. \uc774\ub807\uac8c \uc9c0\uc815\ub41c \uc0c9\uc0c1\uac12\uc744 gl_FrontColor Varying \ubcc0\uc218\uc5d0 \uc785\ub825\ub418\uc5b4 \ud504\ub808\uadf8\uba3c\ud2b8 \uc250\uc774\ub354\ub85c \ub118\uaca8\uc9c4\ub2e4.<\/p>\n
    \ud504\ub808\uadf8\uba3c\ud2b8 \uc250\uc774\ub354\ub97c \uc0b4\ud3b4\ubcf4\uc790. \ubc84\ud14d\uc2a4 \uc250\uc774\ub354\ucc98\ub7fc \ub9e4\uc6b0 \uac04\ub2e8\ud558\ub2e4.<\/p>\n
    void main()\r\n{\r\n    gl_FragColor = gl_Color;\r\n}<\/code><\/pre>\n
    \uac04\ub2e8\uc774 \uc124\uba85\ud574\ubcf4\uba74, \uba3c\uc800 \ubc84\ud14d\uc2a4 \uc250\uc774\ub354\ub85c\ubd80\ud130 \ubc1b\uc740 \uc0c9\uc0c1(gl_Color Varying \ubcc0\uc218)\uc744 \uc2e4\uc81c \ud504\ub9ac\ubbf8\ud2f0\ube0c\uc758 \uc0c9\uc0c1\uc73c\ub85c \uc9c0\uc815\ud558\uae30 \uc704\ud574 gl_FragColor\uc5d0 \uc9c0\uc815\ud558\uace0 \uc788\ub2e4.<\/p>\n
    \uc704\uc758 \uc2e4\uc81c \uc608\uc81c \ucf54\ub4dc\ub294 \uc544\ub798\ub97c \ud1b5\ud574 \ub2e4\uc6b4\ub85c\ub4dc \ubc1b\uae30 \ubc14\ub780\ub2e4.<\/p>\n
    <\/a><\/p>\n
    \uc2e4\ud589 \uacb0\uacfc\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n
    \"\"<\/p>\n","protected":false},"excerpt":{"rendered":"
    GLSL \uc608\uc81c : Color Shader \uc6d0\ubb38 : http:\/\/www.lighthouse3d.com\/opengl\/glsl\/index.php?color GLSL\uc740 OpenGL \uc0c1\ud0dc\uc758 \uc77c\ubd80\ubd84\uc5d0 \uc811\uadfc\ud560 \uc218 \uc788\ub2e4. \uc774 \uc139\uc158\uc5d0\uc11c\ub294 glColor\ub97c \uc0ac\uc6a9\ud558\ub294 OpenGL \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc0c9\uc0c1\uc5d0 \uc5b4\ub5bb\uac8c \uc811\uadfc\ud558\ub294\uc9c0\ub97c \uc0b4\ud3b4\ubcf4\uaca0\ub2e4. GLSL\uc740 \ud604\uc7ac\uc758 \uc0c9\uc0c1\uc5d0 \ub300\ud55c \u00a0Attribute \ubcc0\uc218\ub97c \uac00\uc9c0\uace0 \uc788\ub2e4. \ub610\ud55c \ubc84\ud14d\uc2a4 \uc250\uc774\ub354\ub85c\ubd80\ud130 \ud504\ub808\uadf8\uba3c\ud2b8 \uc250\uc774\ub354\ub85c \uc804\ub2ec\ub418\ub294 \uc0c9\uc0c1\uc744 \uc5bb\uae30 \uc704\ud55c Varying \ubcc0\uc218\ub97c \uac00\uc9c0\uace0 \uc788\ub2e4. attribute vec4 gl_Color; varying vec4 gl_FrontColor; \/\/ \ubc84\ud14d\uc2a4 \uc250\uc774\ub354\uc5d0\uc11c … <\/p>\n
    \ub354 \ubcf4\uae30 “OpenGL Shader – 18”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[3,25],"class_list":["post-483","post","type-post","status-publish","format-standard","hentry","category-opengl","tag-opengl","tag-shader"],"_links":{"self":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=483"}],"version-history":[{"count":3,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/483\/revisions"}],"predecessor-version":[{"id":4719,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/483\/revisions\/4719"}],"wp:attachment":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=483"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}