stk-code_catmod/data/shaders/gaussian6v.frag

uniform sampler2D tex;
uniform vec2 pixel;

// Gaussian separated blur with radius 6.

out vec4 FragColor;

void main()
{
    vec2 uv = gl_FragCoord.xy * pixel;
    vec4 sum = vec4(0.0);
    float X = uv.x;
    float Y = uv.y;

    sum += texture(tex, vec2(X, Y - 5.13333 * pixel.y)) * 0.00640869;
    sum += texture(tex, vec2(X, Y - 3.26667 * pixel.y)) * 0.083313;
    sum += texture(tex, vec2(X, Y - 1.4 * pixel.y)) * 0.305481;
    sum += texture(tex, vec2(X, Y)) * 0.209473;
    sum += texture(tex, vec2(X, Y + 1.4 * pixel.y)) * 0.305481;
    sum += texture(tex, vec2(X, Y + 3.26667 * pixel.y)) * 0.083313;
    sum += texture(tex, vec2(X, Y + 5.13333 * pixel.y)) * 0.00640869;

    FragColor = sum;
}