shaders/unlit.h

   1 #ifndef SHADER_unlit_H
   2 #define SHADER_unlit_H
   3 static void shader_unlit_link(void);
   4 static void shader_unlit_register(void);
   5 static struct vg_shader _shader_unlit = {
   6    .name = "unlit",
   7    .link = shader_unlit_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 vec4 a_colour;\n"
  15 "layout (location=3) in vec2 a_uv;\n"
  16 "\n"
  17 "#line      2        0 \n"
  18 "\n"
  19 "uniform mat4 uPv;\n"
  20 "uniform mat4x3 uMdl;\n"
  21 "\n"
  22 "out vec4 aColour;\n"
  23 "out vec2 aUv;\n"
  24 "out vec3 aNorm;\n"
  25 "out vec3 aCo;\n"
  26 "out vec3 aWorldCo;\n"
  27 "\n"
  28 "void main()\n"
  29 "{\n"
  30 "   vec3 world_pos = uMdl * vec4(a_co,1.0);\n"
  31 "   gl_Position = uPv * vec4( world_pos, 1.0 );\n"
  32 "   aColour = a_colour;\n"
  33 "   aUv = a_uv;\n"
  34 "   aNorm = mat3(uMdl) * a_norm;\n"
  35 "   aCo = a_co;\n"
  36 "   aWorldCo = world_pos;\n"
  37 "}\n"
  38 ""},
  39    .fs =
  40 {
  41 .orig_file = "../../shaders/unlit.fs",
  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 "   vec3 diffuse = texture( uTexMain, aUv ).rgb;\n"
  56 "   FragColor = vec4(pow(diffuse,vec3(1.0)),1.0);\n"
  57 "}\n"
  58 ""},
  59 };
  60
  61 static GLuint _uniform_unlit_uPv;
  62 static GLuint _uniform_unlit_uMdl;
  63 static GLuint _uniform_unlit_uTexMain;
  64 static GLuint _uniform_unlit_uColour;
  65 static void shader_unlit_uPv(m4x4f m){
  66    glUniformMatrix4fv( _uniform_unlit_uPv, 1, GL_FALSE, (float *)m );
  67 }
  68 static void shader_unlit_uMdl(m4x3f m){
  69    glUniformMatrix4x3fv( _uniform_unlit_uMdl, 1, GL_FALSE, (float *)m );
  70 }
  71 static void shader_unlit_uTexMain(int i){
  72    glUniform1i( _uniform_unlit_uTexMain, i );
  73 }
  74 static void shader_unlit_uColour(v4f v){
  75    glUniform4fv( _uniform_unlit_uColour, 1, v );
  76 }
  77 static void shader_unlit_register(void){
  78    vg_shader_register( &_shader_unlit );
  79 }
  80 static void shader_unlit_use(void){ glUseProgram(_shader_unlit.id); }
  81 static void shader_unlit_link(void){
  82    _uniform_unlit_uPv = glGetUniformLocation( _shader_unlit.id, "uPv" );
  83    _uniform_unlit_uMdl = glGetUniformLocation( _shader_unlit.id, "uMdl" );
  84    _uniform_unlit_uTexMain = glGetUniformLocation( _shader_unlit.id, "uTexMain" );
  85    _uniform_unlit_uColour = glGetUniformLocation( _shader_unlit.id, "uColour" );
  86 }
  87 #endif /* SHADER_unlit_H */