shaders/route.fs

   1 out vec4 FragColor;
   2
   3 uniform sampler2D uTexGarbage;
   4 uniform sampler2D uTexGradients;
   5 uniform vec3 uCamera;
   6 uniform vec4 uColour;
   7
   8 in vec4 aColour;
   9 in vec2 aUv;
  10 in vec3 aNorm;
  11 in vec3 aCo;
  12 in vec3 aWorldCo;
  13
  14 #include "common_world.glsl"
  15
  16 void main()
  17 {
  18    vec3 vfrag = vec3(0.5,0.5,0.5);
  19
  20    // ws modulation
  21    vec4 wgarbage = texture( uTexGarbage, aCo.xz * 0.015 );
  22
  23    // Creating normal patches
  24    vec3 modnorm = (wgarbage.rgb-0.4) * 1.4;
  25    vec3 qnorm = normalize(floor(aNorm*4.0+modnorm)*0.25) + vec3(0.001,0.0,0.0);
  26
  27    vec3 tangent0 = normalize(cross(qnorm,vec3(0.0,1.0,0.0)));
  28    vec3 tangent1 = cross(qnorm,tangent0);
  29    vec2 uvdiffuse = vec2( dot(tangent0,aCo), dot(tangent1,aCo) ) * 0.035;
  30
  31    // Patch local noise
  32    vec4 rgarbage = texture( uTexGarbage, uvdiffuse );
  33
  34    vfrag = pow(uColour.rgb,vec3(1.0/2.2));
  35    vfrag -= rgarbage.a*0.1;
  36
  37    if( wgarbage.g < 0.3 )
  38       discard;
  39
  40    if( g_light_preview == 1 )
  41    {
  42       vfrag = vec3(0.5);
  43    }
  44
  45    // Lighting
  46    vec3 halfview = uCamera - aWorldCo;
  47    float fdist = length( halfview );
  48    halfview /= fdist;
  49
  50    vfrag = do_light_diffuse( vfrag, qnorm );
  51    vfrag = do_light_spec( vfrag, qnorm, halfview, 0.1 );
  52    vfrag = do_light_shadowing( vfrag );
  53    vfrag = apply_fog( vfrag, fdist );
  54
  55    FragColor = vec4(vfrag, 1.0 );
  56 }