2 #extension GL_ARB_explicit_attrib_location : enable
5 precision mediump float;
8 layout (origin_upper_left,pixel_center_integer) in vec4 gl_FragCoord;
9 float myGlobalVar = gl_FragCoord.x;
10 layout (origin_upper_left,pixel_center_integer) in vec4 gl_FragCoord;
13 layout (location = 0) out vec4 myColor;
14 const float eps=0.001;
18 if (gl_FragCoord.y >= 10) {
21 if (gl_FragCoord.y == trunc(gl_FragCoord.y)) {
24 if (gl_FragCoord.x == trunc(gl_FragCoord.x)) {
28 vec4 diff = gl_FragCoord - i;
29 if (abs(diff.z)>eps) myColor.b = 0.5;
30 if (abs(diff.w)>eps) myColor.a = 0.5;