uniform sampler2D SCREEN_TEXTURE;
uniform highp float BLUR_AMOUNT;

void fragment() {
    highp vec3 col = texture(SCREEN_TEXTURE, UV).xyz * BLUR_AMOUNT;
    highp vec4 color = zTexture(UV);
    col += texture(SCREEN_TEXTURE, UV + vec2(0.0, SCREEN_PIXEL_SIZE.y)).xyz * 0.15;
    col += texture(SCREEN_TEXTURE, UV + vec2(0.0, -SCREEN_PIXEL_SIZE.y)).xyz * 0.15;
    col += texture(SCREEN_TEXTURE, UV + vec2(0.0, 2.0 * SCREEN_PIXEL_SIZE.y)).xyz * 0.12;
    col += texture(SCREEN_TEXTURE, UV + vec2(0.0, 2.0 * -SCREEN_PIXEL_SIZE.y)).xyz * 0.12;
    col += texture(SCREEN_TEXTURE, UV + vec2(0.0, 3.0 * SCREEN_PIXEL_SIZE.y)).xyz * 0.09;
    col += texture(SCREEN_TEXTURE, UV + vec2(0.0, 3.0 * -SCREEN_PIXEL_SIZE.y)).xyz * 0.09;
    col += texture(SCREEN_TEXTURE, UV + vec2(0.0, 4.0 * SCREEN_PIXEL_SIZE.y)).xyz * 0.05;
    col += texture(SCREEN_TEXTURE, UV + vec2(0.0, 4.0 * -SCREEN_PIXEL_SIZE.y)).xyz * 0.05;
    COLOR = vec4(vec3(col), color.a);
}