In article <3D3### [at] skynetbe>,
 Fabien Mosen <fab### [at] skynetbe> wrote:

> > That's a good idea...you could do the same thing as the post_process 
> > curves filter without needing the patch, though it would still have the 
> > limitations of what you can put through a PNG file.
> 
> What's the bit-depth limit ?

48-bits per pixel, which I assume is 16 bits per component. 65536 levels 
per component, in the range 0-100%. The C "float" type, which POV uses 
for color components internally, is at minimum a 32-bit floating point 
number, which can handle a huge range of values and is much more precise 
in the 0-1 range.
Plus you might run into problems with gamma correction.

-- 
Christopher James Huff <chr### [at] maccom>
POV-Ray TAG e-mail: chr### [at] tagpovrayorg
TAG web site: http://tag.povray.org/

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