finding point on the vector

Questions & Answers
1

i have two vectors that i use to render line. i am trying to get two points on the line that is 10% of the length distant from the end and beginning so actually i would render two lines that are part of the big line, check out the attachment

http://yfrog.com/14vectorp

thanks!

2

You'd do something like this (in c# - change Vector3 to var for js):

Vector3 v = end - start;
Vector3 tenPercent = v / 10;
Vector3 firstTenPercentEnd = start + tenPercent;
Vector3 lastTenPercentStart = end - tenPercent;

then you just draw lines from start to firstTenPercentEnd, and lastTenPercentStart to end