{"id":440,"date":"2007-08-16T14:58:00","date_gmt":"2007-08-16T14:58:00","guid":{"rendered":"http:\/\/www.gisdeveloper.co.kr\/?p=440"},"modified":"2017-01-29T11:22:22","modified_gmt":"2017-01-29T02:22:22","slug":"opengl-shader-7","status":"publish","type":"post","link":"http:\/\/www.gisdeveloper.co.kr\/?p=440","title":{"rendered":"OpenGL Shader – 7"},"content":{"rendered":"

GLSL\uc744 \uc704\ud55c OpenGL \uc124\uc815 – \ud504\ub85c\uadf8\ub7a8 \ub9cc\ub4e4\uae30
\n\uc6d0\ubb38 : http:\/\/www.lighthouse3d.com\/opengl\/glsl\/index.php?oglprogram<\/a><\/p>\n

\ub2e4\uc74c \uadf8\ub9bc\uc740 \uc250\uc774\ub354 \ud504\ub85c\uadf8\ub7a8\uc744 \uc900\ube44\ud558\uace0 \uc2e4\ud589\ud574\uac00\ub294\ub370 \ud544\uc694\ud55c \ud568\uc218 \ud638\ucd9c \ub2e8\uacc4\uc774\ub2e4.<\/p>\n

\"\"\uccab\ubc88\uc9f8 \ub2e8\uacc4(glCreateProgram)\ub294 \ud504\ub85c\uadf8\ub7a8(\uc250\uc774\ub354\uc5d0 \ub300\ud55c) \ucee8\ud14c\uc774\ub108\ub97c \uc704\ud55c \uac1d\uccb4\ub97c \uc0dd\uc131\uc774\ub2e4. \uc774 \ud568\uc218\ub294 \ucee8\ud14c\uc774\ub108\uc5d0 \ub300\ud55c \ud578\ub4e4\uc744 \ubc18\ud658\ud55c\ub2e4. OpenGL 2.0 \ubb38\ubc95\uc740 \uc544\ub798\uc640 \uac19\ub2e4.<\/p>\n

GLuint glCreateProgram(void);<\/p>\n

ARB \ud655\uc7a5 \ud615\ud0dc\uc758 \ubb38\ubc95\uc740 \uc544\ub798\uc640 \uac19\ub2e4.<\/p>\n

GLhandleARB glCreateProgramObjectARB(void);<\/p>\n

\uc6d0\ud558\ub294 \ub9cc\ud07c\uc758 \ud504\ub85c\uadf8\ub7a8 \ucee8\ud14c\uc774\ub108\ub97c \uc0dd\uc131\ud560 \uc218 \uc788\ub2e4. \ub80c\ub354\ub9c1 \uc2dc\uc5d0 \uc6d0\ud558\ub294 \uc250\uc774\ub354 \ud504\ub85c\uadf8\ub7a8\uc73c\ub85c \ubc88\uac08\uc544\uac00\uba70 \uad50\uccb4\ud560 \uc218 \uc788\uace0, OpenGL\uc5d0\uc11c \uae30\ubcf8\uc801\uc73c\ub85c \uc81c\uacf5\ud558\ub294 \uace0\uc815\uae30\ub2a5(Fixed Functionality)\uc73c\ub85c \ub3cc\uc544\uac08 \uc218\ub3c4 \uc788\ub2e4. \uc608\ub97c\ub4e4\uc5b4\uc11c, \ubc18\uc0ac \uc250\uc774\ub354\ub97c \uc774\uc6a9\ud574 \uc8fc\uc804\uc790\ub97c \uadf8\ub9ac\uace0, \ub3d9\uc2dc\uc5d0 \uc9c1\uc721\uba74\uccb4 \ud050\ube0c\ub294 OpenGL\uc758 \uc6d0\ub798 \uae30\ub2a5\uc778, \uace0\uc815\uae30\ub2a5\uc73c\ub85c \uadf8\ub9b4 \uc218 \uc788\ub2e4.<\/p>\n

\ub2e4\uc74c \ub2e8\uacc4\ub294 \uc774\uc804 \uc139\uc158\uc5d0\uc11c \uc0dd\uc131\ud55c \uc250\uc774\ub354\ub97c \ud504\ub85c\uadf8\ub7a8 \ucee8\ud14c\uc774\ub108\uc5d0 \ubd99\uc774\ub294 glAttachShader\uc774\ub2e4. \uc250\uc774\ub354\ub294 \uc774 \uc2dc\uc810\uc5d0\uc11c \ucef4\ud30c\uc77c\ub420 \ud544\uc694\uac00 \uc5c6\uace0, \uc774 \ub2e8\uacc4\uae4c\uc9c0\ub294 \uc250\uc774\ub354 \uc18c\uc2a4 \ucf54\ub4dc\ub97c \uac00\uc9c0\uc9c0 \uc54a\uc544\ub3c4 \ub41c\ub2e4. \uc250\uc774\ub354\ub97c \ud504\ub85c\uadf8\ub7a8\uc5d0 \ubd99\uc5b4\uae30 \uc704\ud574 \ud544\uc694\ud55c \uac83\uc740 \uc624\ub85c\uc9c0 \uc250\uc774\ub354 \ucee8\ud14c\uc774\ub108\uc774\ub2e4.<\/p>\n

\uc250\uc774\ub354\ub97c \ud504\ub85c\uadf8\ub7a8\uc5d0 \ubd99\uc774\uae30 \uc704\ud55c OpenGL 2.0 \ud568\uc218\uc758 \ud615\ud0dc\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n

void glAttachShader(GLuint program, GLuint shader);
\nParameters:
\n  Program – \ud504\ub85c\uadf8\ub7a8 \ucee8\ud14c\uc774\ub108 \ud578\ub4e4
\n  shader – \ud504\ub85c\uadf8\ub7a8 \ucee8\ud14c\uc774\ub108\uc5d0 \ubd99\uc774\uace0\uc790 \ud558\ub294 \uc250\uc774\ub354\uc758 \ud578\ub4e4<\/p>\n

ARB \ud655\uc7a5\uc5d0 \ub300\ud55c \ud568\uc218 \ud615\ud0dc\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n

void glAttachObjectARB(GLhandleARB program, GLhandleARB shader);
\nParameters:
\n  Program – \ud504\ub85c\uadf8\ub7a8 \ucee8\ud14c\uc774\ub108 \ud578\ub4e4
\n  shader –  \ud504\ub85c\uadf8\ub7a8 \ucee8\ud14c\uc774\ub108\uc5d0 \ubd99\uc774\uace0\uc790 \ud558\ub294 \uc250\uc774\ub354\uc758 \ud578\ub4e4<\/p>\n

\ub9cc\uc57d, \ud504\ub85c\uadf8\ub7a8\uc5d0 \ubc84\ud14d\uc2a4\uc640 \ud504\ub808\uadf8\uba3c\ud2b8 \uc250\uc774\ub354 \ub450\uac1c\ub97c \ub3d9\uc2dc\uc5d0 \ubd99\uc774\uace0\uc790 \ud560\ub54c\uac00 \uc788\ub2e4. \uac19\uc740 \ud504\ub85c\uadf8\ub7a8\uc5d0 \ubd99\uc774\uace0\uc790 \ud558\ub294 \uac19\uc740 \uc885\ub958\uc758 \ub9ce\uc740 \uc250\uc774\ub354\ub97c \uac00\uc9c8 \uc218 \uc788\ub294\ub370, \uc774\uac83\uc740 \ub9c8\uce58 C\uc5b8\uc5b4\ub85c \uc791\uc131\ub41c \ud504\ub85c\uadf8\ub7a8\uc774 \ub9ce\uc74c \ubaa8\ub4c8\uc744 \uac00\uc9c8 \uc218 \uc788\ub294 \uac83\uacfc \uac19\uc740 \uacbd\uc6b0\uc774\ub2e4. C\uc5b8\uc5d0\uc11c\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c \uac01\uac01\uc758 \uc250\uc774\ub354\uc5d0 \ub300\ud574\uc11c \ub531 \ud558\ub098\uc758 main \ud568\uc218\ub97c \uac00\uc9c8 \uc218 \uc788\ub2e4.<\/p>\n

\ud558\ub098\uc758 \uc250\uc774\ub354\ub97c \uc5ec\ub7ec\uac1c\uc758 \ud504\ub85c\uadf8\ub7a8\uc5d0 \ubd99\uc77c \uc218 \uc788\ub294\ub370, \uc608\ub97c\ub4e4\uc5b4\uc11c \ub3d9\uc77c\ud55c \ubc84\ud14d\uc2a4 \uc250\uc774\ub354\ub97c \uc5ec\ub7ec\uac1c\uc758 \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c \uc0ac\uc6a9\ud558\ub294 \uac83\uc774\ub2e4.<\/p>\n

\ub9c8\uc9c0\ub9c9 \ub2e8\uacc4\ub294 \ud504\ub85c\uadf8\ub7a8\uc744 \ub9c1\ud06c\ud558\ub294 \uac83\uc774\ub2e4. \uc774 \ub2e8\uacc4\ub97c \uc218\ud589\ud558\uae30 \uc704\ud574\uc11c \uc138\uc774\ub354\ub294 \uc774\uc804 \uc139\uc158\uc5d0\uc11c \uc124\uba85\ud588\ub358 \uac83\ucc98\ub7fc \ubc18\ub4dc\uc2dc \ucef4\ud30c\uc77c \ub418\uc5b4\uc838 \uc788\uc5b4\uc57c \ud55c\ub2e4. \uc774\ub807\uac8c \ucef4\ud30c\uc77c \ub418\uc5b4\uc838 \uc788\ub294 \uc250\uc774\ub354\ub97c \ub9c1\ud06c\ud574\uc8fc\ub294 OpenGL 2.0 \ud568\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n

void glLinkProgram(GLuint program);
\nParameters:
\n  program – \ud504\ub85c\uadf8\ub7a8 \ucee8\ud14c\uc774\ub108\uc758 \ud578\ub4e4<\/p>\n

\uc704\uc758 \ud568\uc218\ub97c ARB \ud655\uc7a5 \ud615\ud0dc\ub85c \uc0b4\ud3b4\ubcf4\uba74 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n

void glLinkProgramARB(GLhandleARB program);
\nParameters:
\n  program – \ud504\ub85c\uadf8\ub7a8 \ucee8\ud14c\uc774\ub108\uc758 \ud578\ub4e4<\/p>\n

\ub9c1\ud06c\uac00 \ub41c \ud6c4\uc5d0, \uc250\uc774\ub354\uc758 \uc18c\uc2a4\ub294 \uc218\uc815\ub420 \uc218 \uc788\uace0 \ud504\ub85c\uadf8\ub7a8\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\uc9c0 \uc54a\uace0 \ub2e4\uc2dc \ucef4\ud30c\uc77c \ub418\uc5b4 \uc9c4\ub2e4.<\/p>\n

\uc704\uc758 \uadf8\ub9bc\uc5d0\uc11c \ucc98\ub7fc, \ud504\ub85c\uadf8\ub7a8\uc774 \ub9c1\ud06c\ub418\uc5b4\uc9c0\uba74 \uc774\uc81c \uc2e4\uc81c\ub85c \ud504\ub85c\uadf8\ub7a8\uc740 \uc0ac\uc6a9\ud560 \uc218 \uc788\uac8c\ub418\ub294\ub370, \uc774\uac83\uc740 ARB \ud655\uc7a5\ud568\uc218\uc778 glUseProgramObjectARB\ub098 OpenGL 2.0\uc778 glUseProgram\uc744 \uc774\uc6a9\ud55c\ub2e4. \uac01 \ud504\ub85c\uadf8\ub7a8\uc740 \ud578\ub4e4\uc5d0 \ud560\ub2f9\ub418\uc5b4\uc838 \uc788\uace0, \ud558\ub4dc\uc6e8\uc5b4\uac00 \ud5c8\ub77d\ud558\ub294 \ud55c, \uc6b0\ub9ac\uac00 \uc0ac\uc6a9\ud558\uae38 \uc6d0\ud558\ub294 \ub9cc\ud07c \ud504\ub85c\uadf8\ub7a8\uc744 \ub9c1\ud06c\ud574 \ub193\uace0 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4.<\/p>\n

\uc2e4\uc81c \ucef4\ud30c\uc77c\ub418\uc5b4\uc9c4 \uc250\uc774\ub354 \ud504\ub85c\uadf8\ub7a8\uc744 \uc0ac\uc6a9\ud558\ub294 OpenGL 2.0 \ud615\ud0dc\uc758 \ud568\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n

void glUseProgram(GLuint prog)
\nParameters:
\n  prog – \uc0ac\uc6a9\ud558\uae38 \uc6d0\ud558\ub294 \ud504\ub85c\uadf8\ub7a8\uc758 \ud578\ub4e4\uc774\uba70 \uace0\uc815\uae30\ub2a5\uc73c\ub85c \ubcf5\uadc0\ud560 \uacbd\uc6b0 0<\/p>\n

ARB \ud655\uc7a5\uc758 \ud615\ud0dc\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n

void glUseProgramObjectARB(GLhandleARB prog);
\nParameters:
\n  prog – \uc0ac\uc6a9\ud558\uae38 \uc6d0\ud558\ub294 \ud504\ub85c\uadf8\ub7a8\uc758 \ud578\ub4e4\uc774\uba70 \uace0\uc815\uae30\ub2a5\uc73c\ub85c \ubcf5\uadc0\ud560 \uacbd\uc6b0 0<\/p>\n

\ub9cc\uc57d \ud504\ub85c\uadf8\ub7a8\uc774 \uc0ac\uc6a9\uc911\uc774\uace0, \ub2e4\uc2dc \ub9c1\ud06c\ub418\uc5b4\uc9c4\ub2e4\uba74, \uc790\ub3d9\uc73c\ub85c \uc218\uc815\ub41c \ub0b4\uc6a9\uc774 \uc0ac\uc6a9\ub418\ub3c4\ub85d \uc124\uc815\ub418\ubbc0\ub85c, \uc774 \ud568\uc218\ub97c \ub2e4\uc2dc \ud638\ucd9c\ud560 \ud544\uc694\uac00 \uc5c6\ub2e4. \uadf8\ub9ac\uace0 OpenGL\uc758 \uace0\uc815\uae30\ub2a5\uc73c\ub85c \ubcf5\uadc0\ud560 \uacbd\uc6b0\uc5d0 prog \uc778\uc790\uc5d0 0(Zero)\uc744 \ub123\uace0 \ud638\ucd9c\ud558\uba74 \ub41c\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

GLSL\uc744 \uc704\ud55c OpenGL \uc124\uc815 – \ud504\ub85c\uadf8\ub7a8 \ub9cc\ub4e4\uae30 \uc6d0\ubb38 : http:\/\/www.lighthouse3d.com\/opengl\/glsl\/index.php?oglprogram \ub2e4\uc74c \uadf8\ub9bc\uc740 \uc250\uc774\ub354 \ud504\ub85c\uadf8\ub7a8\uc744 \uc900\ube44\ud558\uace0 \uc2e4\ud589\ud574\uac00\ub294\ub370 \ud544\uc694\ud55c \ud568\uc218 \ud638\ucd9c \ub2e8\uacc4\uc774\ub2e4. \uccab\ubc88\uc9f8 \ub2e8\uacc4(glCreateProgram)\ub294 \ud504\ub85c\uadf8\ub7a8(\uc250\uc774\ub354\uc5d0 \ub300\ud55c) \ucee8\ud14c\uc774\ub108\ub97c \uc704\ud55c \uac1d\uccb4\ub97c \uc0dd\uc131\uc774\ub2e4. \uc774 \ud568\uc218\ub294 \ucee8\ud14c\uc774\ub108\uc5d0 \ub300\ud55c \ud578\ub4e4\uc744 \ubc18\ud658\ud55c\ub2e4. OpenGL 2.0 \ubb38\ubc95\uc740 \uc544\ub798\uc640 \uac19\ub2e4. GLuint glCreateProgram(void); ARB \ud655\uc7a5 \ud615\ud0dc\uc758 \ubb38\ubc95\uc740 \uc544\ub798\uc640 \uac19\ub2e4. GLhandleARB glCreateProgramObjectARB(void); \uc6d0\ud558\ub294 \ub9cc\ud07c\uc758 \ud504\ub85c\uadf8\ub7a8 \ucee8\ud14c\uc774\ub108\ub97c \uc0dd\uc131\ud560 \uc218 … <\/p>\n

\ub354 \ubcf4\uae30 “OpenGL Shader – 7”<\/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-440","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\/440","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=440"}],"version-history":[{"count":1,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/440\/revisions"}],"predecessor-version":[{"id":3602,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/440\/revisions\/3602"}],"wp:attachment":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=440"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=440"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}