Update shader

assets/ms_fragment.txt

@@ -3,14 +3,46 @@ varying vec4 color;
 varying vec3 position;
 
 uniform vec4 lineParams;
+uniform vec4 startPointEndPoint;
 
 void main() 
 {
 	float a = lineParams.x;
 	float b = lineParams.y;
 	float c = lineParams.z;
-
-	float distance = abs(a*position.x + b*position.y + c);
 	
-	gl_FragColor = vec4(color.rgb, color.a*clamp(1.2 / (distance + 1.0) - 0.5, 0.0, 1.0));
+	float Xa = startPointEndPoint.r;
+	float Ya = startPointEndPoint.g;
+	
+	float Xb = startPointEndPoint.b;
+	float Yb = startPointEndPoint.a;
+	
+	
+	
+	float distance;
+	
+	
+	float distanceToA = (Xa - position.x)*(Xb - Xa) + (Ya - position.y)*(Yb - Ya);
+	
+	float distanceToB = (Xb - position.x)*(Xb - Xa) + (Yb - position.y)*(Yb - Ya);
+	
+	
+	
+	if (distanceToA * distanceToB > 0)
+	{
+		float len = sqrt((Xb - Xa)*(Xb - Xa) + (Yb - Ya)*(Yb - Ya));
+		distance = max(abs(distanceToA/len), abs(distanceToB/len));
+	}
+	else
+	{
+		distance = abs(a*position.x + b*position.y + c);
+	}
+
+	
+	float t = clamp(1.2 / (distance + 1.0) - 0.5, 0.0, 1.0);
+	
+	
+	gl_FragColor = vec4(color.rgb, color.a*t);
+	
+	//gl_FragColor = vec4(color.rgb*clamp(1.2 / (distance + 1.0) - 0.5, 0.0, 1.0), 1.0);
 }

assets/ms_fragment_x16.txt

@@ -42,5 +42,6 @@ void main()
 	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, 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);
 }