Point, add a distance in a vector direction....

I am tooo tired for this....Well lets say that I have a point:


1, 5, 20



and a LOOK direction vector that is:


250, 148, 120


And I want to add 600 to the point in THAT direction.....what am I supposed to do again...


PS:I hate to do math and 3D programming when I am drunk.....

First off you need to work out how long the look vector is so we can normalise it:

LookLen = sqrt(250^2 + 148^2 + 120^2)

Lx = 250 / LookLen
Ly = 148 / LookLen
Lz = 120 / LookLen

Now we add the 600 using the normalised vector to distrubute the 600 ...

Nx = 1 + (Lx * 600)
Ny = 5 + (Ly * 600)
Nz = 20 + (Lz * 600)

New Position is (Nx, Ny, Nz)

You are my drunken master..:D...glad I all ready have a Normalize function in my Math class..:D

Thanks a bunch...glad you are still awayke or this would have taken me all night....I am even to drunk to find my math book...:D


Thanks ØØ