POV-Ray : Newsgroups : povray.newusers : Getting a laser effect with Lego parts : Re: Getting a laser effect with Lego parts Server Time
28 Jul 2024 14:18:18 EDT (-0400)
  Re: Getting a laser effect with Lego parts  
From: dksmall
Date: 1 Nov 2008 18:20:00
Message: <web.490cd50b1f1bb543e2228abc0@news.povray.org>
Sorry about the file size, I'm still learning what to keep and what to throw
away.  The Y axis inversion is a result of the ldraw standard, so anything I
make with the ldraw lego tools will be this way.  Where was the
media{scattering } attribute added, to the antenna part or maybe the light
source?

Thanks
Kelly

Alain <ele### [at] netscapenet> wrote:
> dksmall nous illumina en ce 2008-10-31 16:26 -->
> > I've looked over several posts about getting an sci-fi laser effect, but it's
> > just not working for me.  Here's a stripped down version with just a few parts
> > in it.  I can't get the light source to fill the neon green part.  Eventually I
> > would add a cylinder to extend the beam out of the part if I can get this
> > working.
> >
> <code snipped>
> You could have provided a much simplified code using a pair of cylinders, and
> keep only the actual materials used.
>
> The cylinder light is actualy UNDER the element shown.
>
> Anyway, adding media{scattering{1, rgb 0.01}} made your beam very visible, after
> toning down the other lights a lot as this media fills the whole scene.
>
> What you can do, is to add a long cylinder extending your laser, fill it with
> some scettering media. You can also not use the light_source and instead use
> some emissive media with a cylindrical pattern where the actual coloration of
> the beam can change between a very bright center beam to a more diffuse fringe.
>
> By the way, can you tell me WHY you work with all negative Y values? The beam
> start at <10,-135,80>
> All your scene is upside down... the sky vector is -y
>
>
> --
> Alain
> -------------------------------------------------
> Hard work pays off in the future. Laziness pays off now.


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