In article <c6iui9$54s$1@chho.imagico.de>,
 Christoph Hormann <chr### [at] gmxde> wrote:

> This is an interesting idea although as long as there isn't support for 
> such files at least in some applications it will not be so useful. 

That's why I'm working on converters to/from other HDRI formats. ;-)


> You might consider proposing this to the libpng guys so it might get 
> added to libpng.

That is a good idea...it obviously wouldn't take much to add, basically 
just define another couple color types. Optimal compression might be a 
bit harder...


> Signed values might be useful for non-Image applications but in most 
> cases you would want at least 32bit floating point values for this.

Hmm...sFNG? (signed FNG)
FNG32? (How to fit the extra bits in?  Probably a custom data "chunk".)

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: <chr### [at] tagpovrayorg>
http://tag.povray.org/

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