shaders/menu.h

   1 #ifndef SHADER_menu_H
   2 #define SHADER_menu_H
   3 static void shader_menu_link(void);
   4 static void shader_menu_register(void);
   5 static struct vg_shader _shader_menu = {
   6    .name = "menu",
   7    .link = shader_menu_link,
   8    .vs =
   9 {
  10 .static_src =
  11 "layout (location=0) in vec3 a_co;\n"
  12 "layout (location=1) in vec3 a_norm;\n"
  13 "layout (location=2) in vec2 a_uv;\n"
  14 "layout (location=3) in vec4 a_colour;\n"
  15 "layout (location=4) in vec4 a_weights;\n"
  16 "layout (location=5) in ivec4 a_groups;\n"
  17 "\n"
  18 "#line      2        0 \n"
  19 "\n"
  20 "uniform mat4x3 uMdl;\n"
  21 "uniform mat4 uPv;\n"
  22 "\n"
  23 "out vec4 aColour;\n"
  24 "out vec2 aUv;\n"
  25 "out vec3 aNorm;\n"
  26 "out vec3 aCo;\n"
  27 "out vec3 aWorldCo;\n"
  28 "\n"
  29 "void main()\n"
  30 "{\n"
  31 "   vec3 world_pos = uMdl * vec4(a_co,1.0);\n"
  32 "   gl_Position = uPv * vec4( world_pos, 1.0 );\n"
  33 "   aColour = a_colour;\n"
  34 "   aUv = a_uv;\n"
  35 "   aNorm = mat3(uMdl) * a_norm;\n"
  36 "   aCo = a_co;\n"
  37 "   aWorldCo = world_pos;\n"
  38 "}\n"
  39 ""},
  40    .fs =
  41 {
  42 .static_src =
  43 "out vec4 FragColor;\n"
  44 "\n"
  45 "uniform sampler2D uTexMain;\n"
  46 "uniform vec4 uColour;\n"
  47 "\n"
  48 "in vec4 aColour;\n"
  49 "in vec2 aUv;\n"
  50 "in vec3 aNorm;\n"
  51 "in vec3 aCo;\n"
  52 "\n"
  53 "void main()\n"
  54 "{\n"
  55 "   vec4 diffuse = texture( uTexMain, aUv );\n"
  56 "\n"
  57 "   if( diffuse.a < 0.5 )\n"
  58 "      discard;\n"
  59 "\n"
  60 "   FragColor = vec4( diffuse.rgb, 1.0 ) * uColour;\n"
  61 "}\n"
  62 ""},
  63 };
  64
  65 static GLuint _uniform_menu_uMdl;
  66 static GLuint _uniform_menu_uPv;
  67 static GLuint _uniform_menu_uTexMain;
  68 static GLuint _uniform_menu_uColour;
  69 static void shader_menu_uMdl(m4x3f m){
  70    glUniformMatrix4x3fv(_uniform_menu_uMdl,1,GL_FALSE,(float*)m);
  71 }
  72 static void shader_menu_uPv(m4x4f m){
  73    glUniformMatrix4fv(_uniform_menu_uPv,1,GL_FALSE,(float*)m);
  74 }
  75 static void shader_menu_uTexMain(int i){
  76    glUniform1i(_uniform_menu_uTexMain,i);
  77 }
  78 static void shader_menu_uColour(v4f v){
  79    glUniform4fv(_uniform_menu_uColour,1,v);
  80 }
  81 static void shader_menu_register(void){
  82    vg_shader_register( &_shader_menu );
  83 }
  84 static void shader_menu_use(void){ glUseProgram(_shader_menu.id); }
  85 static void shader_menu_link(void){
  86    _uniform_menu_uMdl = glGetUniformLocation( _shader_menu.id, "uMdl" );
  87    _uniform_menu_uPv = glGetUniformLocation( _shader_menu.id, "uPv" );
  88    _uniform_menu_uTexMain = glGetUniformLocation( _shader_menu.id, "uTexMain" );
  89    _uniform_menu_uColour = glGetUniformLocation( _shader_menu.id, "uColour" );
  90 }
  91 #endif /* SHADER_menu_H */