Hi Thomas,
On Sun, 2005-10-30 at 01:04 +0200, Thomas Beer wrote:
> Hi!
>
> I just encountered an "unexpected behaviour" kind of problem with
> MatrixPerspective:
>
> MatrixPerspective(90.0, 1.0, 0.1, 1000.0) gives
>
> -0.501 0.000 0.000 0.000
> 0.000 -0.501 0.000 0.000
> 0.000 0.000 -1.000 -0.200
> 0.000 0.000 -1.000 0.000
>
> while gluPerspective(90.0, 1.0, 0.1, 1000.0) gives me
>
> 1.000 0.000 0.000 0.000
> 0.000 1.000 0.000 0.000
> 0.000 0.000 -1.000 -0.200
> 0.000 0.000 -1.000 0.000
>
> Is this the supposed behaviour of MatrixPerspective?
Yup. ALL OpenSG functions take angles in radians, not degrees. Try
MatrixPerspective(osgdegree2rad(90.0), 1.0, 0.1, 1000.0), that should
fix it.
Hope it helps
Dirk
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