[Radiance-general] aspect ratio problem

[Carsten Bauer]

Bleicher, Thomas wrote:


> I'm not repeating the other add ons to this equation
> just one thing everyone seems to miss (and which is
> a bit of nitpicking):
> 
> tan(2*a) != 2*tan(a)
> 
> therefore the correct equation is
> 
> tan(vv/2) / tan(hv/2) = 576 / 1024

sorry, yepp, I've forgotten about that (funny enough, as I've
implemented exactly the above equation long ago..)
Its not nitpicking, it's simply correct..
-cb

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