POV-Ray : Newsgroups : povray.general : That moving yellow light Server Time
17 Nov 2024 05:13:45 EST (-0500)
  That moving yellow light (Message 1 to 5 of 5)  
From: Stephen R  Phillips
Subject: That moving yellow light
Date: 5 Jun 2003 18:22:44
Message: <Xns9391BBEDE5A4Bcybermans_pov_posts_are_here@204.213.191.226>
Alright I've tried to get this to work but somehow I don't have a visible 
'iluminator'

What I have doesn't work <hehehe> hence the post.. what I want is the 
follow
bright light that's visable IE you can see the light itself moving away.

here is the anoying snipet of script


#declare Pulse=
light_source
{
   <0,0,0> color Red
   fade_power 1
   fade_distance 2
   looks_like
   {
      sphere
      {  <0, 0, 0>, .99
         scale <-0.03, 0.018, 0.03>
      }
   }
}


for the life of me I get this red object moving that's it. ERG

Stephen


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From: Christopher James Huff
Subject: Re: That moving yellow light
Date: 5 Jun 2003 19:33:37
Message: <cjameshuff-FF2B1A.18245505062003@netplex.aussie.org>
In article 
<Xns### [at] 204213191226>,
 "Stephen R. Phillips" <cyb### [at] socketnet> wrote:

> #declare Pulse=
> light_source
> {
>    <0,0,0> color Red
>    fade_power 1
>    fade_distance 2
>    looks_like
>    {
>       sphere
>       {  <0, 0, 0>, .99
>          scale <-0.03, 0.018, 0.03>
>       }
>    }
> }

You don't have any texture defined for the sphere, so it defaults to 
black. You also have it scaled pretty small...you didn't give what scale 
you're working at, but it may be too small to see.

-- 
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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From: Stephen R  Phillips
Subject: Re: That moving yellow light
Date: 6 Jun 2003 01:23:18
Message: <Xns9392F24C27F1cybermans_pov_posts_are_here@204.213.191.226>
Christopher James Huff <cja### [at] earthlinknet> wrote in news:cjameshuff-
FF2### [at] netplexaussieorg:

> You don't have any texture defined for the sphere, so it defaults to 
> black. You also have it scaled pretty small...you didn't give what scale 
> you're working at, but it may be too small to see.
> 

It's seeable.. I originaly set it as red with ambient of red but it should 
look like a STAR or am I a bit confused? Hmmm maybe I should use a object 
with media in it and a light inside of it.. the object moves with the 
light.. ehh this is so messy.

The camera is close it's angle is in the direction the light is moving.. 
I'm kind of going for the shooting star look.

Thanks.. I just thought it would have a lense flare look to it and.. it 
didn't. I used media on the scene
media
{
   scattering
   {
    	2, color Grey10
   }
}

this works great save I can't get the frilly halo like affect I want from 
the light! :)


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From: Ib Rasmussen
Subject: Re: That moving yellow light
Date: 6 Jun 2003 06:29:33
Message: <3EE06CC0.1060909@ibras.dk>
Stephen R. Phillips wrote:

> What I have doesn't work <hehehe> hence the post.. what I want is the 
> follow
> bright light that's visable IE you can see the light itself moving away.

   <snip>

> for the life of me I get this red object moving that's it. ERG


When I first read through you msg, I thought that you wanted to move 
your Pulse object trough your scene (presumably in an animation), and 
that should be simple enough (just use the clock variable to calculate 
the position, and translate the object), but then I re-read the msg, and 
now not sure at all, what it is that you are asking.

/Ib


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From: Christopher James Huff
Subject: Re: That moving yellow light
Date: 6 Jun 2003 09:46:37
Message: <cjameshuff-B7914E.08375806062003@netplex.aussie.org>
In article 
<Xns### [at] 204213191226>,
 "Stephen R. Phillips" <cyb### [at] socketnet> wrote:

> It's seeable.. I originaly set it as red with ambient of red but it should 
> look like a STAR or am I a bit confused? Hmmm maybe I should use a object 
> with media in it and a light inside of it.. the object moves with the 
> light.. ehh this is so messy.

You used "looks_like {sphere {...}}", so it looks like a sphere. If you 
make your sphere really small and high ambient, it will look a bit like 
a star.


> Thanks.. I just thought it would have a lense flare look to it and.. it 
> didn't. I used media on the scene
...
> this works great save I can't get the frilly halo like affect I want from 
> the light! :) 

Why would it have a lens flare? You told it to look like a sphere.
If a lens flare is what you want, media won't help...lens flare is an 
effect of the lens in the camera, not of the atmosphere. What you're 
simulating is atmospheric glow due to scattering. If you want lens 
flare, here's an include file for generating them:
http://www.nathan.kopp.com/nkflare.htm

-- 
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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