"Jeremy Wilson" <jwi### [at] batchcomputercom> wrote in
news:3d8a2629$1@news.povray.org: 

> Hi,
> I currently have a program that ouputs mesh2 objects and adds texture
> info to them.  Unfortunately, my textures are standard Windows BMP
> files.  Since BMP files don't support an alha channel, so parts of the
> bitmap that are supposed to be transparent are not.  If I could tell my
> program to output PNG files I would but I can't at this time. 

You can use ImageMagick (available for Windows, among other systems) to 
transform your BMP images into PNG (for example), adding transparency to the 
given color (option: -transparent <color>).

I just tried:
convert -transparent #FFFFFF FairyCastle.bmp FC.png
checked transparency with an HTML page, looks OK.

HTH.

-- 
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Philippe Lhoste (Paris -- France)
Professional programmer and amateur artist
http://jove.prohosting.com/~philho/

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