shaders/model_gate.h

   1 #ifndef SHADER_model_gate_H
   2 #define SHADER_model_gate_H
   3 static void shader_model_gate_link(void);
   4 static void shader_model_gate_register(void);
   5 static struct vg_shader _shader_model_gate = {
   6    .name = "model_gate",
   7    .link = shader_model_gate_link,
   8    .vs =
   9 {
  10 .orig_file = "shaders/model.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       1        1 \n"
  20 "const float k_motion_lerp_amount = 0.01;\n"
  21 "\n"
  22 "#line      2        0 \n"
  23 "\n"
  24 "out vec3 aMotionVec0;\n"
  25 "out vec3 aMotionVec1;\n"
  26 "\n"
  27 "void vs_motion_out( vec4 vproj0, vec4 vproj1 )\n"
  28 "{\n"
  29 "   // This magically solves some artifacting errors!\n"
  30 "   //\n"
  31 "   vproj1 = vproj0*(1.0-k_motion_lerp_amount) + vproj1*k_motion_lerp_amount;\n"
  32 "\n"
  33 "   aMotionVec0 = vec3( vproj0.xy, vproj0.w );\n"
  34 "   aMotionVec1 = vec3( vproj1.xy, vproj1.w );\n"
  35 "}\n"
  36 "\n"
  37 "#line      9        0 \n"
  38 "\n"
  39 "uniform mat4x3 uMdl;\n"
  40 "uniform mat4 uPv;\n"
  41 "uniform mat4 uPvmPrev;\n"
  42 "\n"
  43 "out vec4 aColour;\n"
  44 "out vec2 aUv;\n"
  45 "out vec3 aNorm;\n"
  46 "out vec3 aCo;\n"
  47 "out vec3 aWorldCo;\n"
  48 "\n"
  49 "void main()\n"
  50 "{\n"
  51 "   vec3 world_pos0 = uMdl     * vec4( a_co, 1.0 );\n"
  52 "   vec4 vproj0     = uPv      * vec4( world_pos0, 1.0 );\n"
  53 "   vec4 vproj1     = uPvmPrev * vec4( a_co, 1.0 );\n"
  54 "\n"
  55 "   vs_motion_out( vproj0, vproj1 );\n"
  56 "\n"
  57 "   gl_Position = vproj0;\n"
  58 "   aWorldCo = world_pos0;\n"
  59 "   aColour = a_colour;\n"
  60 "   aUv = a_uv;\n"
  61 "   aNorm = mat3(uMdl) * a_norm;\n"
  62 "   aCo = a_co;\n"
  63 "}\n"
  64 ""},
  65    .fs =
  66 {
  67 .orig_file = "shaders/model_gate_lq.fs",
  68 .static_src =
  69 "out vec4 FragColor;\n"
  70 "\n"
  71 "uniform float uTime;\n"
  72 "uniform vec3 uCam;\n"
  73 "uniform vec2 uInvRes;\n"
  74 "uniform vec4 uColour;\n"
  75 "\n"
  76 "in vec3 aNorm;\n"
  77 "in vec2 aUv;\n"
  78 "in vec3 aCo;\n"
  79 "\n"
  80 "void main()\n"
  81 "{\n"
  82 "   vec2 ssuv = gl_FragCoord.xy;\n"
  83 "   float opacity = 1.0-smoothstep(0.0,1.0,aUv.y+uColour.a);\n"
  84 "   \n"
  85 "   vec3 vDither = vec3( dot( vec2( 171.0, 231.0 ), ssuv) );\n"
  86 "   float dither = fract( vDither.g / 71.0 ) - 0.5;\n"
  87 "\n"
  88 "   if( opacity+dither<0.5 )\n"
  89 "      discard;\n"
  90 "\n"
  91 "   FragColor = uColour;\n"
  92 "}\n"
  93 ""},
  94 };
  95
  96 static GLuint _uniform_model_gate_uMdl;
  97 static GLuint _uniform_model_gate_uPv;
  98 static GLuint _uniform_model_gate_uPvmPrev;
  99 static GLuint _uniform_model_gate_uTime;
 100 static GLuint _uniform_model_gate_uCam;
 101 static GLuint _uniform_model_gate_uInvRes;
 102 static GLuint _uniform_model_gate_uColour;
 103 static void shader_model_gate_uMdl(m4x3f m){
 104    glUniformMatrix4x3fv(_uniform_model_gate_uMdl,1,GL_FALSE,(float*)m);
 105 }
 106 static void shader_model_gate_uPv(m4x4f m){
 107    glUniformMatrix4fv(_uniform_model_gate_uPv,1,GL_FALSE,(float*)m);
 108 }
 109 static void shader_model_gate_uPvmPrev(m4x4f m){
 110    glUniformMatrix4fv(_uniform_model_gate_uPvmPrev,1,GL_FALSE,(float*)m);
 111 }
 112 static void shader_model_gate_uTime(float f){
 113    glUniform1f(_uniform_model_gate_uTime,f);
 114 }
 115 static void shader_model_gate_uCam(v3f v){
 116    glUniform3fv(_uniform_model_gate_uCam,1,v);
 117 }
 118 static void shader_model_gate_uInvRes(v2f v){
 119    glUniform2fv(_uniform_model_gate_uInvRes,1,v);
 120 }
 121 static void shader_model_gate_uColour(v4f v){
 122    glUniform4fv(_uniform_model_gate_uColour,1,v);
 123 }
 124 static void shader_model_gate_register(void){
 125    vg_shader_register( &_shader_model_gate );
 126 }
 127 static void shader_model_gate_use(void){ glUseProgram(_shader_model_gate.id); }
 128 static void shader_model_gate_link(void){
 129    _uniform_model_gate_uMdl = glGetUniformLocation( _shader_model_gate.id, "uMdl" );
 130    _uniform_model_gate_uPv = glGetUniformLocation( _shader_model_gate.id, "uPv" );
 131    _uniform_model_gate_uPvmPrev = glGetUniformLocation( _shader_model_gate.id, "uPvmPrev" );
 132    _uniform_model_gate_uTime = glGetUniformLocation( _shader_model_gate.id, "uTime" );
 133    _uniform_model_gate_uCam = glGetUniformLocation( _shader_model_gate.id, "uCam" );
 134    _uniform_model_gate_uInvRes = glGetUniformLocation( _shader_model_gate.id, "uInvRes" );
 135    _uniform_model_gate_uColour = glGetUniformLocation( _shader_model_gate.id, "uColour" );
 136 }
 137 #endif /* SHADER_model_gate_H */