So you use the real size of the turrets to calculate the hitbox?

`not real size but to append the 'height' of a turret imd to the z hitbox`

`radius of a ground non-cyborg droid`

It would be something like sqrt( (x1-x2)^2 + (y1-y2)^2 + (z1-z2)^2 ) < radius So yes, you are probably right. With all those ^2 and the sqrt it would probably have been slow.On the paper draft for my engine I just compared the lines of math needed.;)What I just thought of (totally off topic): Does perhaps GL offer some wayofdoing vector math like this? (Add 2 vectors and calculate it's length.)

`dunno,I am ignorant of GL.think it'd be faster if we can move most`

`performance critical vector/matrix calculations to GPU/video ram.`

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