Thomas de Groot schrieb:
> To test the visibility of an object in a scene, the code for a testing 
> screen below has been provided by Gilles Tran. This code is for the POV-Ray 
> (left-handed) coodinate system (y = up). I would like to use this for a 
> (right-handed) scene built in Moray (z = up), but don't know how to rewrite 
> the code for the screen. All help will be kindly acknowledged :-)
> 
> //--start code--
> #declare CamLoc = <0, .3, 0>;
> #declare CamEye = <0.0, 6,  0.0>;
> #declare CamSky = y;
> #declare AspectRatio = 640/1000;
> #declare CamZoom = 1.5;

I'd expect that setting either AspectRatio or CamZoom to a negative 
value could do the job.

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