texture framebuffer
vec2 direction
float amount

effect
{
	float i;
	vec2 xy=_in;
	vec4 pixel = framebuffer(_in);
	for (i=0.0;i<amount;i++) {
		xy+=direction*3.0;
		pixel += framebuffer(xy);
	}
    _out = pixel/(amount+1.0);
}
