[PD] camera lens angle

[Roman Haefeli]

On Wed, 2007-05-16 at 09:20 -0400, marius schebella wrote:
> Hi,
> I just found out that by changing the clipping plane with [perspec ...( 
> it is possible to change the lens angle of the gem camera.
> -1 1 -1 1 1 4 (left, right, bottom, top, front, back)
> gives an angle of 90 degrees,  -0.5 0.5 -0.5 0.5 1 4 gives an angle of 
> ~53 and so on. alpha=asin(x/sqrt(x^2 + 1)).
> (I just post that because I think it is not so well documented.)
> marius.

actually, i thought about that it could be changed with the 'perspec'
message, though i didn't figure it out myself. thanks a lot for making
this clear.

roman


		
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