title: How to get a specific point on a vector3 direction?
body: <p>i could need some help with this problem:</p>
  
  <p>I have a ball flying around in random directions. everytime he collides with something, he changes the direction. </p>
  
  <p>i also have a player, for which i want to write a simple ai script. 
  the player should go to the point, where he could meet the ball.</p>
  
  <p>i made a simple picture for this problem in paint so that it's better to understand:</p>
  
  <p><a href="https://i.stack.imgur.com/XL0uG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/XL0uG.png" alt="enter image description here"></a></p>
  
  <p>What i have is the yellow arrow, thats the ball's direction that it's moving. what i need is the red arrow direction for the player, but  i don't know how to do this?!</p>
  
  <p>thanks for your help!!</p>