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 .orig_file = "../../shaders/standard.vs",
  11 .static_src =
  12 "layout (location=0) in vec3 a_co;\n"
  13 "layout (location=1) in vec3 a_norm;\n"
  14 "layout (location=2) in vec2 a_uv;\n"
  15 "layout (location=3) in vec4 a_colour;\n"
  16 "layout (location=4) in vec4 a_weights;\n"
  17 "layout (location=5) in ivec4 a_groups;\n"
  18 "\n"
  19 "#line      2        0 \n"
  20 "\n"
  21 "uniform mat4x3 uMdl;\n"
  22 "uniform mat4 uPv;\n"
  23 "\n"
  24 "out vec4 aColour;\n"
  25 "out vec2 aUv;\n"
  26 "out vec3 aNorm;\n"
  27 "out vec3 aCo;\n"
  28 "out vec3 aWorldCo;\n"
  29 "\n"
  30 "void main()\n"
  31 "{\n"
  32 "   vec3 world_pos = uMdl * vec4(a_co,1.0);\n"
  33 "   gl_Position = uPv * vec4( world_pos, 1.0 );\n"
  34 "   aColour = a_colour;\n"
  35 "   aUv = a_uv;\n"
  36 "   aNorm = mat3(uMdl) * a_norm;\n"
  37 "   aCo = a_co;\n"
  38 "   aWorldCo = world_pos;\n"
  39 "}\n"
  40 ""},
  41    .fs =
  42 {
  43 .orig_file = "../../shaders/menu.fs",
  44 .static_src =
  45 "out vec4 FragColor;\n"
  46 "\n"
  47 "uniform sampler2D uTexMain;\n"
  48 "uniform vec4 uColour;\n"
  49 "\n"
  50 "in vec4 aColour;\n"
  51 "in vec2 aUv;\n"
  52 "in vec3 aNorm;\n"
  53 "in vec3 aCo;\n"
  54 "\n"
  55 "void main()\n"
  56 "{\n"
  57 "   vec4 diffuse = texture( uTexMain, aUv );\n"
  58 "\n"
  59 "   if( diffuse.a < 0.5 )\n"
  60 "      discard;\n"
  61 "\n"
  62 "   FragColor = vec4( diffuse.rgb, 1.0 ) * uColour;\n"
  63 "}\n"
  64 ""},
  65 };
  66
  67 static GLuint _uniform_menu_uMdl;
  68 static GLuint _uniform_menu_uPv;
  69 static GLuint _uniform_menu_uTexMain;
  70 static GLuint _uniform_menu_uColour;
  71 static void shader_menu_uMdl(m4x3f m){
  72    glUniformMatrix4x3fv( _uniform_menu_uMdl, 1, GL_FALSE, (float *)m );
  73 }
  74 static void shader_menu_uPv(m4x4f m){
  75    glUniformMatrix4fv( _uniform_menu_uPv, 1, GL_FALSE, (float *)m );
  76 }
  77 static void shader_menu_uTexMain(int i){
  78    glUniform1i( _uniform_menu_uTexMain, i );
  79 }
  80 static void shader_menu_uColour(v4f v){
  81    glUniform4fv( _uniform_menu_uColour, 1, v );
  82 }
  83 static void shader_menu_register(void){
  84    vg_shader_register( &_shader_menu );
  85 }
  86 static void shader_menu_use(void){ glUseProgram(_shader_menu.id); }
  87 static void shader_menu_link(void){
  88    _uniform_menu_uMdl = glGetUniformLocation( _shader_menu.id, "uMdl" );
  89    _uniform_menu_uPv = glGetUniformLocation( _shader_menu.id, "uPv" );
  90    _uniform_menu_uTexMain = glGetUniformLocation( _shader_menu.id, "uTexMain" );
  91    _uniform_menu_uColour = glGetUniformLocation( _shader_menu.id, "uColour" );
  92 }
  93 #endif /* SHADER_menu_H */