precision mediump float;
varying vec4 color;
varying vec3 position;

uniform vec4 lineParams0;
uniform vec4 lineParams1;
uniform vec4 lineParams2;
uniform vec4 lineParams3;
uniform vec4 lineParams4;
uniform vec4 lineParams5;
uniform vec4 lineParams6;
uniform vec4 lineParams7;
uniform vec4 lineParams8;
uniform vec4 lineParams9;
uniform vec4 lineParams10;
uniform vec4 lineParams11;
uniform vec4 lineParams12;
uniform vec4 lineParams13;
uniform vec4 lineParams14;
uniform vec4 lineParams15;

void main() 
{
	float distance = abs(lineParams0.x*position.x + lineParams0.y*position.y + lineParams0.z);
	

	distance = min(distance, abs(lineParams1.x*position.x + lineParams1.y*position.y + lineParams1.z));
	
	distance = min(distance, abs(lineParams2.x*position.x + lineParams2.y*position.y + lineParams2.z));
	distance = min(distance, abs(lineParams3.x*position.x + lineParams3.y*position.y + lineParams3.z));
	distance = min(distance, abs(lineParams4.x*position.x + lineParams4.y*position.y + lineParams4.z));
	distance = min(distance, abs(lineParams5.x*position.x + lineParams5.y*position.y + lineParams5.z));
	distance = min(distance, abs(lineParams6.x*position.x + lineParams6.y*position.y + lineParams6.z));
	distance = min(distance, abs(lineParams7.x*position.x + lineParams7.y*position.y + lineParams7.z));
	distance = min(distance, abs(lineParams8.x*position.x + lineParams8.y*position.y + lineParams8.z));
	distance = min(distance, abs(lineParams9.x*position.x + lineParams9.y*position.y + lineParams9.z));
	distance = min(distance, abs(lineParams10.x*position.x + lineParams10.y*position.y + lineParams10.z));
	distance = min(distance, abs(lineParams11.x*position.x + lineParams11.y*position.y + lineParams11.z));
	distance = min(distance, abs(lineParams12.x*position.x + lineParams12.y*position.y + lineParams12.z));
	distance = min(distance, abs(lineParams13.x*position.x + lineParams13.y*position.y + lineParams13.z));
	distance = min(distance, abs(lineParams14.x*position.x + lineParams14.y*position.y + lineParams14.z));
	distance = min(distance, abs(lineParams15.x*position.x + lineParams15.y*position.y + lineParams15.z));
	
	
	//gl_FragColor = vec4(color.rgb, color.a*clamp(1.2 / (distance + 1.0) - 0.5, 0.0, 1.0));
	gl_FragColor = vec4(color.rgb*clamp(1.2 / (distance + 1.0) - 0.5, 0.0, 1.0),  1.0);
}