#version 410

uniform float blur;
uniform float pixelsWidth;
uniform float pixelsHeight;

uniform sampler2D texture1;
in vec2 uvV;

out vec4 fragColor;

void main (void)
{
    float pixels = 1024.0;
    vec2 offset1 = vec2(0.0, 1.0 / pixelsWidth);
    vec4 p = texture(texture1, uvV);
    vec4 pa1 = texture(texture1, uvV + offset1);
    vec4 pa2 = texture(texture1, uvV + 2.0 * offset1);
    vec4 pa3 = texture(texture1, uvV + 3.0 * offset1);
    vec4 pb1 = texture(texture1, uvV - offset1);
    vec4 pb2 = texture(texture1, uvV - 2.0 * offset1);
    vec4 pb3 = texture(texture1, uvV - 3.0 * offset1);
    
    float amt2 = abs(blur);

    float divider = 3.0 + 6.0 * abs(amt2);
    vec4 q = 3.0 * p + amt2 * (pa1 + pa2 + pa3 + pb1 + pb2 + pb3);
    q = q / divider;
    q = abs(q);
    q.a = 1.0;
    fragColor = q;
}