In article <3e89d9a7@news.povray.org>, Warp <war### [at] tagpovrayorg> 
wrote:

>   One of the most useful applications for this would be to specify a bitmap
> for the background (which is often requested by people).

This would be handled by something else. Your definition only works for 
camera rays, it is meaningless for reflected or refracted rays. I can 
think of two (non-exclusive) possibilities: a post-process feature, and 
a programmable camera feature which lets you specify every detail of the 
camera...basically coding the pixel level tracing in POV code. Some 
built-in functions would be made available to make new cameras based on 
existing ones. In this case, you would use one of these functions and a 
pigment function to determine the final pixel color.

-- 
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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