varying vec2 uv;
varying float depth;
uniform vec4 stip_color;

void main() {
	vec4 color = gl_Color;
	if(uv.x > 0.98)
		color.a *= (1.0 - (uv.x - 0.98)/0.02);
	else
		color.a *= pow(uv.x,(10000.0 / depth));
	color.a *= 0.6;

	if(stip_color.a != 0.0 && uv.x < 0.8) {
		float pos = mod(uv.y, 500.0) / 500.0;
		float alph = pow(uv.x,(10000.0 / depth)) * 1.5;
		if(pos > 0.5 && pos < 0.7)
			color = stip_color * vec4(1.0, 1.0, 1.0, alph);
	}
	
	if(color.a < 0.01)
		discard;
	
	gl_FragColor = color;
}