shaders/gatelq.h

   1 #ifndef SHADER_gatelq_H
   2 #define SHADER_gatelq_H
   3 static void shader_gatelq_link(void);
   4 static void shader_gatelq_register(void);
   5 static struct vg_shader _shader_gatelq = {
   6    .name = "gatelq",
   7    .link = shader_gatelq_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 "uniform mat4 uPv;\n"
  20 "uniform mat4x3 uMdl;\n"
  21 "\n"
  22 "out vec3 aNorm;\n"
  23 "out vec2 aUv;\n"
  24 "out vec3 aCo;\n"
  25 "\n"
  26 "void main()\n"
  27 "{\n"
  28 "   vec3 world_pos = uMdl * vec4( a_co, 1.0 );\n"
  29 "   gl_Position = uPv * vec4(world_pos,1.0);\n"
  30 "\n"
  31 "   aNorm = a_norm;\n"
  32 "   aCo = world_pos;\n"
  33 "   aUv = a_uv;\n"
  34 "}\n"
  35 ""},
  36    .fs =
  37 {
  38 .static_src =
  39 "out vec4 FragColor;\n"
  40 "\n"
  41 "uniform float uTime;\n"
  42 "uniform vec3 uCam;\n"
  43 "uniform vec2 uInvRes;\n"
  44 "\n"
  45 "in vec3 aNorm;\n"
  46 "in vec2 aUv;\n"
  47 "in vec3 aCo;\n"
  48 "\n"
  49 "void main()\n"
  50 "{\n"
  51 "   vec2 ssuv = gl_FragCoord.xy;\n"
  52 "   float opacity = 1.0-smoothstep(0.4,1.0,aUv.y);\n"
  53 "   \n"
  54 "   vec3 vDither = vec3( dot( vec2( 171.0, 231.0 ), ssuv) );\n"
  55 "   float dither = fract( vDither.g / 71.0 ) - 0.5;\n"
  56 "\n"
  57 "   if( opacity+dither<0.5 )\n"
  58 "      discard;\n"
  59 "\n"
  60 "   FragColor = vec4( 0.0, 1.0, 0.0, 1.0 );\n"
  61 "}\n"
  62 ""},
  63 };
  64
  65 static GLuint _uniform_gatelq_uPv;
  66 static GLuint _uniform_gatelq_uMdl;
  67 static GLuint _uniform_gatelq_uTime;
  68 static GLuint _uniform_gatelq_uCam;
  69 static GLuint _uniform_gatelq_uInvRes;
  70 static void shader_gatelq_uPv(m4x4f m){
  71    glUniformMatrix4fv(_uniform_gatelq_uPv,1,GL_FALSE,(float*)m);
  72 }
  73 static void shader_gatelq_uMdl(m4x3f m){
  74    glUniformMatrix4x3fv(_uniform_gatelq_uMdl,1,GL_FALSE,(float*)m);
  75 }
  76 static void shader_gatelq_uTime(float f){
  77    glUniform1f(_uniform_gatelq_uTime,f);
  78 }
  79 static void shader_gatelq_uCam(v3f v){
  80    glUniform3fv(_uniform_gatelq_uCam,1,v);
  81 }
  82 static void shader_gatelq_uInvRes(v2f v){
  83    glUniform2fv(_uniform_gatelq_uInvRes,1,v);
  84 }
  85 static void shader_gatelq_register(void){
  86    vg_shader_register( &_shader_gatelq );
  87 }
  88 static void shader_gatelq_use(void){ glUseProgram(_shader_gatelq.id); }
  89 static void shader_gatelq_link(void){
  90    _uniform_gatelq_uPv = glGetUniformLocation( _shader_gatelq.id, "uPv" );
  91    _uniform_gatelq_uMdl = glGetUniformLocation( _shader_gatelq.id, "uMdl" );
  92    _uniform_gatelq_uTime = glGetUniformLocation( _shader_gatelq.id, "uTime" );
  93    _uniform_gatelq_uCam = glGetUniformLocation( _shader_gatelq.id, "uCam" );
  94    _uniform_gatelq_uInvRes = glGetUniformLocation( _shader_gatelq.id, "uInvRes" );
  95 }
  96 #endif /* SHADER_gatelq_H */