I was hoping someone could help me understand why it is the following formula for linear interpolation works, I mean I have tried it and it works, but I'd like to really understand what is going on in it..
You have your two coords, (x1, y1) and (x2, y2)
x and y are points inbetween (x1, y1) and (x2, y2)
y = y1 + (y2 - y1) / (x2 - x1) * (x - x1)
So what is actually occuring here? I'm really confused.