data/shaders/ui_fragment.glsl

   1 #version 330 core
   2
   3 in vec2 uv;
   4
   5 out vec4 out_Colour;
   6
   7 uniform sampler2D texture0;
   8 uniform float alphafunc;
   9
  10 void main(void) {
  11
  12         out_Colour = texture(texture0,uv);
  13         if (alphafunc > 1.5) {
  14                 float a0 = out_Colour.a;
  15                 float a1 = texture(texture0,uv+vec2(-0.001,-0.001)).a;
  16                 float a2 = texture(texture0,uv+vec2(-0.001,0.0)).a;
  17                 float a3 = texture(texture0,uv+vec2(-0.001,0.001)).a;
  18                 float a4 = texture(texture0,uv+vec2(0.0,-0.001)).a;
  19                 float a5 = texture(texture0,uv+vec2(0.0,0.001)).a;
  20                 float a6 = texture(texture0,uv+vec2(0.001,-0.001)).a;
  21                 float a7 = texture(texture0,uv+vec2(0.001,0.0)).a;
  22                 float a8 = texture(texture0,uv+vec2(0.001,0.001)).a;
  23                 out_Colour.a = smoothstep(0.45,0.55,(a0+a1+a2+a3+a4+a5+a6+a7+a8)/9.0);
  24         }else if (alphafunc > 0.5) {
  25                 out_Colour.a = smoothstep(0.45,0.55,out_Colour.a);
  26         }
  27 }