Among other things, Carl Hoff wrote:

>> Oh yeah, and in a moment or
>> two I imagine someone will ask you why it's not JPEG ;-)
> 
> Well I did download a program called ImageForge so I could save the
> 1,440,054 byte BMP image as a 337,634 byte PNG image.  I was trying to
> avoid
> the artifacts created by going to JPEG.  If I broke any posting guideline
> you have my apologies.  Is JPEG the prefered posting format here?

Can't you render directly to PNG? PNG compression is lossless, there's no 
quality degradation in rendering (and storing) your images in PNG format.

> My first image I posted here was in the JPEG format but once I saw the
> difference between the JPEG and PNG files of the same image I was rather
> easily converted.  To be honest not only am I new to POV-Ray but I'm new
> to
> some of these image formats as well.  I wasn't aware of much aside from
> BMP,
> GIF, and JPG a little over a month ago.  I'm toying with the idea of
> making a few animations but I know even less about all the formats they
> are saved
> in.  I'm sure I'll learn.

I'm no one here, but I'd say you should only use JPG and PNG in these 
groups:

- Use JPG with high compression rate as often as you can. Yes, the quality 
won't be perfect, but it's usually enough to see the model, lighting, etc. 
This is not the file you store in your system, it's just the file you send 
to the group.

- Use PNG only in cases where it gives lower filesize than JPG (very simple 
flat-colour images) or when the quality loss is unacceptable (maybe you're 
trying to show some fine detail or texture that is lost in JPG, for 
example).

-- 
light_source{9+9*x,1}camera{orthographic look_at(1-y)/4angle 30location
9/4-z*4}light_source{-9*z,1}union{box{.9-z.1+x clipped_by{plane{2+y-4*x
0}}}box{z-y-.1.1+z}box{-.1.1+x}box{.1z-.1}pigment{rgb<.8.2,1>}}//Jellby

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