"Nurwodah" <Nur### [at] webde> wrote in message 
news:web.4a1d416d84c0b6cb7e13cce0@news.povray.org...
>
> If I use the following source for rendering, I get a rather strange image:
> After passing the glass block and being refracted/reflected/absorbed 
> correctly,
> the laser beam changes into a dotted line, that looks very much like some
> interference pattern.

Just got a look at this before going out the door.

I see, yeah, try something like media 200,10 for the global photons and 
maybe that will be okay.
You might also need to make 'spacing' a fraction smaller, the exit beam is 
fuzzy.
Checking that, I had to use media 300,10 with spacing 0.005 or else the 
fragmenting occurs again.

Funny thing, I hadn't realized the two medias (both boxes) wouldn't be 
needed-- unless you were going to have different ones, of course.

Bob

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