#version 330
in vec3 color;
out vec4 fragColor;
uniform vec4 mousePos;

void main()
{
    float w = mousePos[2],
          h = mousePos[3],
          xf = gl_FragCoord.x / w,
          yf = gl_FragCoord.y / h;
    fragColor = vec4(xf, yf, 0.0, 1.0);
}