static Vec3 PerpendicularRight(Vec3 forward, Vec3 up)

Exactly the same as Vec3.Cross, but has some naming mnemonics for getting the order right when trying to find a perpendicular vector using the cross product. This’ll also make it more obvious to read if that’s what you’re actually going for when crossing vectors!

If you consider a forward vector and an up vector, then the direction to the right is pretty trivial to imagine in relation to those vectors!

Vec3 forward What way are you facing?
Vec3 up What direction is up?
RETURNS: Vec3 Your direction to the right! Result is -not- a unit vector, even if both ‘forward’ and ‘up’ are unit vectors.

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