I have been tweaking the files in the MEDIA directory that came with
POV 3.1, trying to come up with a glowing ball of gas. I'm sure this is
quite simple if you already know how to do it, but I'm having quite a
time. The closest I have been able to come is by starting with the
Hollow2.pov file, but I can't get what I want -- namely, a ball of gas,
lit from within, with no visible sphere surrounding it and able to
illuminate things around it.

     Is there something a little easier I should be trying?

     Thanks,

     Rick Adams

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For starters check the transmit value you have there for the container
object. The demo files seem to have then semi-transparent. You would
need t=1 instead. Hollow2.pov has this as 0.9 and hollow1.pov has a 0.8.
Probably so people could see the object the media is in.
Then add a light_source into the center of this "gasball" so as to
illuminate surrounding. You can either add the gassball object as a
looks_like {} in this light to have no_shadow automatically used on it,
or outside of the light_source statement with 'no_shadow' keyword added
to the gasball object. If the container uses rgbt however instead of
filter this isn't necessary anyway though. If you do want some shadowing
caused by the media use rgbf instead and don't make the object a
looks_like in the light.
Any help? Hope so.


Rick, Adams wrote:
> 
>      I have been tweaking the files in the MEDIA directory that came with
> POV 3.1, trying to come up with a glowing ball of gas. I'm sure this is
> quite simple if you already know how to do it, but I'm having quite a
> time. The closest I have been able to come is by starting with the
> Hollow2.pov file, but I can't get what I want -- namely, a ball of gas,
> lit from within, with no visible sphere surrounding it and able to
> illuminate things around it.
> 
>      Is there something a little easier I should be trying?
> 
>      Thanks,
> 
>      Rick Adams

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