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docs - update gl shader docs to include gles specifics 

Wiki page drawing_cube changed with summary [add precision to shader (gl_2d.c)] by jpeg
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jpeg 2016-02-05 16:39:51 +09:00 committed by Carsten Haitzler (Rasterman)
parent 2049b94f73
commit bb0e70b170
1 changed files with 12 additions and 0 deletions
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12
pages/tutorial/gl2d/drawing_cube.txt
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@ -226,6 +226,9 @@ pixel with this interpolated color.
<code c>
GLbyte vertex_shader[] =
"#ifdef GL_ES\n"
"precision mediump float;\n"
"#endif\n"
"attribute vec4 a_position;\n"
"attribute vec4 a_color;\n"
"uniform mat4 u_mvp_mat;\n"
@ -236,6 +239,9 @@ GLbyte vertex_shader[] =
" v_color = a_color;\n"
"}";
GLbyte fragment_shader[] =
"#ifdef GL_ES\n"
"precision mediump float;\n"
"#endif\n"
"varying vec4 v_color;\n"
"void main()\n"
"{\n"
@ -253,6 +259,9 @@ init_shaders(GLData *gld)
Evas_GL_API *gl = gld->glapi;
GLbyte vertex_shader[] =
"#ifdef GL_ES\n"
"precision mediump float;\n"
"#endif\n"
"attribute vec4 a_position;\n"
"attribute vec4 a_color;\n"
"uniform mat4 u_mvp_mat;\n"
@ -263,6 +272,9 @@ init_shaders(GLData *gld)
" v_color = a_color;\n"
"}";
GLbyte fragment_shader[] =
"#ifdef GL_ES\n"
"precision mediump float;\n"
"#endif\n"
"varying vec4 v_color;\n"
"void main()\n"
"{\n"