In article <3d5683b3$1@news.povray.org>,
 "Theo Gottwald *" <The### [at] t-onlinede> wrote:

> Yes, I've already tried a bit and mixed a red, green and blue spot light
> which gives also a lot of colours.

That is not necessary, more work, and is much less accurate.


> The diffract-examples partially render to some "unnatural rainbows"
> as the colours do not flow in each other but are separated like with a line.
> Especially new_diffract.pov. I am not yet shure what I need to change that.

newdiffract.pov is not at all realistic, it uses a dispersion value far 
outside the usual range for a special effect. Usual values are much 
closer to 1, look at consts.inc for some values.
If you want smoother color blends, increase dispersion_samples. This 
will slow things down though...it is a tradeoff of speed or quality.

-- 
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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