In article <391E6A2A.C09319D2@stud.ntnu.no>, Sigmund Kyrre Aas 
<as### [at] studntnuno> wrote:

> Needless to say render and parse time can be very long, thus making 
> it slow to experiment with the post processes. With a copy{} object 
> one could output several different versions of the file:
> 
> post_process {
>    copy { png "no_postprocess.png" }
>    copy { png "focal_and_soft.png"
>       focal_blur{10,5,2}
>       soft_glow{.6,5}
>    }
> }

I think a better solution would be input_image and output_image 
directives for each process. The input_image keyword would load the 
specified image and use it to override the color values, output_image 
would save the results of the filter to the specified file and restore 
the previous version in memory. It would probably have to be clipped 
colors to be a standard image format, but that shouldn't be a big 
problem(you could find or create another image format supporting a 
greater dynamic range).

-- 
Christopher James Huff - Personal e-mail: chr### [at] yahoocom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://chrishuff.dhs.org/
TAG Web page: http://tag.povray.org/

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