Re: [Plib-devel] Quaternions in plib

[Sam S. <sa...@sp...>]

----- Original Message -----
From: "Amit Bakshi" <am...@de...>
To: <pli...@li...>
Sent: Thursday, August 10, 2000 5:30 PM
Subject: Re: [Plib-devel] Quaternions in plib


>
> Because it's overkill. You don't need to use quaternions for everything.
> The only thing I use them for is for interpolation keyframed animations.
> For camera controls , eulers work fine; have been for years.

But if you have a camera that can move on all three axes, then it's going to
screw up pretty quickly.  I can't believe that these sort of cameras are all
that rare (any space/flight sim for example).  Quaternions have the
advantage that they don't need to be reorthoganised _ever_, and from my
prespective four floats is a damn site better than twelve for network
transmission (OK, so it's a naive implementation - you could get away with
transmitting a single unsigned int if you used a lookup table.  Again
quaternions would be quicker to lookup).

Sam