Warp wrote:
> Bryan Heit <bjh### [at] nospamucalgaryca> wrote:
>> As I said, it's whats in the documentation, but it doesn't seem to work 
>> out that way.
> 
>   Rest assured that if it didn't work that way, I would have noticed.
> After all, I have written things like this:
> 
> http://tag.povray.org/povQandT/languageQandT.html#aspectratio
> 
>> Solved that issue.  Image looks identical on the computer screen, 
>> compared to the one rendered above, but does not get distorted when 
>> exported to DVD.
> 
>   Which image format did you use? OTOH, I don't understand why that
> would make any difference.

I couldn't find my disks with my older material on it, but I did render 
a few cubes to demonstrate the effect.  As soon as I have time I'll put 
them up somewhere.

Any how, I've been playing around with this and I think I know what it 
going on.  It appears to be a problem with how povray is writing (or not 
writing) the aspect ratio to the BMP's header, plus how my video editing 
software seems to handle BMPs.

If I render in PNG (or targa), rather than BMP, I don't have this 
problem.  I looked up the difference in how bmp vs. PNG store aspect 
ratio, and they're different.  I suspect that my video editing software 
simply is not handling the BMP method of storing aspect ratio correctly. 
  Why entering the aspect ratio manually fixes this I don't know.

Bryan

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