Sounds fairly interesting. But you're right, I don't
want to create and use techniques which can't be
done with pure POVing. Since I think it is okay to
reuse and image processed by POV-Ray, I'm
thinking of ways to blur the image via POV-Ray before
applying it as a transparent quad which will
be positioned to cover the image area.

The only problem is with focal blur. The only method I
see for that is to render both images (specular and
normal) with focal-blur, then blur the specular image
and position both images as textured quads in front
of the camera. Thats compositing via POV-Ray.

So, all in all, it should be close enough to the non-post-
processed, as you're working only with POV-Ray,
and if that gets ruled out, I don't know how 3D-Studio
Max's Lens flare (just as an example) gets allowed...

-- 
Tim Nikias v2.0
Homepage: http://www.digitaltwilight.de/no_lights
Email: Tim### [at] gmxde

> It looks good, and is pretty simple to do.
>
> Incidentally, if you're interested, the way to get a more "real world"
version
> of this would be to render the scene much darker usign 48-bit colour so
that
> bright things don't just flatten out to white. Then process that to two
> different images, using colour curves that simulate film colour response.
One of
> the images should be processed with a curve that picks out just the bright
> things. Then you blur that image and add it to the first.
>
> The advantage with this technique is it will pick up on any bright thing,
not
> just specular highlights. Also if you replace the blur stage with a series
of
> more complex transformations you can emulate a very realistic lens flare
effect.
>
> But personally I haven't played with those techniques because I don't want
to
> learn skills I can't use in the IRTC! Maybe one day I'll write all of this
into
> a povray patch...
>
> --
> Tek
> http://www.evilsuperbrain.com
>
> "Tim Nikias v2.0" <tim### [at] gmxde> wrote in message
> news:3eef46d8@news.povray.org...
> > Here's a pic from the quick way:
> > 1. Render image with only black background/textures,
> > and only leave specular in finish...
> > 2. Modify that image via Paint-Program of Choice
> > 3. Layer the image back ontop of the scene, this
> > time with everything but specular on.
> >
> > Works fine for antialiasing, doesn't work with
> > focal blur (I'll create some workaround), and
> > depending on complexity of scene takes just
> > about 30 seconds...
> >
> > My macros could do it an hour...
> > (What a waste of time...:-(
> >
> > Still looks nice as an effect though.
> >
> > --
> > Tim Nikias v2.0
> > Homepage: http://www.digitaltwilight.de/no_lights
> > Email: Tim### [at] gmxde
> >
> >
> >
>
>

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