On 8/21/2015 5:42 PM, "Jörg \"Yadgar\" Bleimann" wrote:
> Hi(gh)!
>
> To add the scrolling info text (to be displayed when the ball runs
> through one of the two rotating "i" characters), I now used screen.inc
> in my POVigma project - and noticed a strange deviation in brightness
> and contrast (lighting settings are not changed since)!
>
> With screen.inc (nevertheless using a conventional camera, as a
> straight-down top view otherwise would yield an error), the whole scene
> is brighter and with less contrast, as showed in the two attached pictures.
>
> How can I fix this?
>
> See you in Khyberspace!
>
> Yadgar

IIRC I encountered some washed out and overly bright colors when 
switching between orthographic and perspective camera modes in 
screen.inc. Compare these two images:

http://s421.photobucket.com/user/SharkD2161/media/Povray/pov_screenupdate_a.png.html
http://s421.photobucket.com/user/SharkD2161/media/Povray/pov_screenupdate_b.png.html

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