In article <3CA1AF06.2AD8C723@luxlab.com>,
 Kari Kivisalo <pro### [at] luxlabcom> wrote:

> How about just assigning the spectral sample frequencies to RGB
> channels in multiple pov & output image files. Then combine the
> full spectrum from multiple image files and calculate RGB values.
> When I have nothing else to do I'll try that :) Povray animation
> loop and Matlab script will do the extra job nicely. The problem
> is the multiplied render time. 

Interesting idea. Slower, but interesting.
You would still have to take the very different surface properties into 
account...for example, the grating in the front of a microwave oven is 
opaque to microwaves. Common glass transmits ultraviolet fairly badly. 
Objects of different temperatures radiate different amounts and 
wavelengths of infrared...surface temperature seems to overpower diffuse 
reflection, you will have to simulate absorption and heating for 
realistic infrared. Almost anything is nearly transparent to gamma rays. 
Fluorescence (absorption and re-emission at a different wavelength) 
often has effects within the visible spectrum, but will be much more 
important with a wider spectrum. With the longer wavelengths, 
interference effects will be much more visible at ordinary scales. You 
can get away with ignoring these effects in the visible range and 
higher, but I think they would become very important once you get into 
the microwave range, or maybe even long infrared.

-- 
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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