Warp wrote:
> 
>   Using red+green as a 16-bit value for the height is a good idea, but not
> very practical. No image editing programs support that, so you just can't
> create them. AFAIK there are only two widespread programs which support
> this: POV-Ray and fracting. This isn't enough because neither is an image
> editing program.
>   Nowadays this red+green idea is also obsolete because we can use a 16-bit
> b/w PNG to achieve the same thing, and this is a lot more supported (besides
> being a lot more logical).
> 

I would not say it's obsolete, apart from the reason that it's quite
simple to program TGA output, it's also possible to edit those formats
with a paint program which does not apply for 16 bit png.  You can resize
it (without interpolation of course) cut out a subsection of the image,
mirror it, etc.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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