I also did a B&W image merely by using only shades of grey in my image.
You might also consider a brownish image by using a filter.  My image is
in the Element's round of the IRTC and is titled DarkLight.

Steve


Ken wrote:
> 
> Kyle wrote:
> >
> > Hi everyone.  I have a quick question.  Is there any way to have POV-Ray
> > render in black and white?  I'm thinking about submitting an IRTC image
> > in black and white, but since post-processing is not allowed, I don't
> > see a good way to do it.  Is there some setting in POV-Ray for this?  Of
> > course, I can just give all the objects a greyish color but I don't
> > think that would come out very nicely.  Well, if anyone has a suggestion
> > I'd be very grateful to hear it.
> >
> >                 Kyle
> 
>   I did an image I think last December that was titled I believe "Black
> and White Povatography". It is in the images group. In that I explored the
> wonderful world of black and white photography as represented in a raytracing
> program that is commonly used for color image production. Anyway My solutions
> was of course to use shades of gray for all objects in the scene. It's really
> not that difficult to do since all of your pigments can be designed using a
> single rgb float value - pigment{rgb .5} would be 50% gray for example.
> The most difficult part is choosing the correct finish statements and lighting
> models to get the same sharp contrast that b/w photos are famous for. Getting
> sharp shadows is a trademark item for b/w photos that I had trouble recreating.
> I think there is a certain limitation in the represention of b/w images on
> an electronic medium but that is a nother story.
>  As far as special settings for Pov I know of no setting that will allow a
> 256 shades of grey pallet or display output as used as the standard for
> electronic b/w image reproduction.
> 
> --
> Ken Tyler
> 
> mailto://tylereng@pacbell.net

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