Linear interpolation - extent a line past a known point?

vvvv beta question
1

Hi there,

I have two arbitrary 3dVectors. I want to draw a straight line from point1 to point2 and then past that
How do I get that third point? Respectively, I don’t need that point if I can scale the line up but…

I feel like I’ve done this in the past and there’s a handy node for it… but maybe not. In any case, I’m stumped

thegistofit.v4p (9.9 KB)

2

Nvm, I figured out the a solution that will work.
thegistofit2.v4p (18.7 KB)

3

this is the correct vector math for it, also much more efficient in terms of CPU:

thegistofit3.v4p (14.5 KB)

4

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