How i can extend renderLine further?

Hello,

I am trying to extend the renderLine length in particular direction. i have two vec 3 values. from one i have to extend.

Need help.

Thanks in Advance…

var directionOfNextPoint = new pc.Vec3();
directionOfNextPoint.sub2(rayTargetEntity.getPosition(), collisionBallPointerEntity.getPosition());
directionOfNextPoint.normalize();

var distanceBetweenTwoPoints = directionOfNextPoint.length();
var nextPointPosition = directionOfNextPoint.clone();

// console.log(nextPointPosition);

app.renderLine(nextPointPosition, collisionBallPointerEntity.getPosition(), new pc.Color(0, 0, 0), new pc.Color(0, 0, 0), pc.LINEBATCH_OVERLAY);