POV-Ray : Newsgroups : povray.general : Help with a spherical container : Re: Help with a spherical container Server Time
3 Aug 2024 20:17:32 EDT (-0400)
  Re: Help with a spherical container  
From: Wesley Parker
Date: 4 Nov 2003 21:06:42
Message: <3fa85b32$1@news.povray.org>
this is kinda funny, i changed the amount of lights im going to use from 25
to 250 (and increased the radius to 500) and its been parsing for the last
15 minutes o.O

im just going to go ahead and stop it now and try the function in the
standard include.
"Warp" <war### [at] tagpovrayorg> wrote in message
news:3fa850c0@news.povray.org...
> Wesley Parker <wes### [at] verizonnet> wrote:
> > Hey, i had an idea for something pretty interesting but I am having
problems
> > implementing it.  What i did was create a sphere with object media at
the
> > origin with a radius of five. That part was easy enough, but placing the
> > lights is troubling me. I need the placement to be random, but at the
same
> > time the lights need to be on the inside of the sphere.
>
> #declare Seed = seed(0);
>
> #declare LightLocation = 10*<rand(Seed), rand(Seed), rand(Seed)>-5;
> #while(vlength(LightLocation) > 5)
>   #declare LightLocation = 10*<rand(Seed), rand(Seed), rand(Seed)>-5;
> #end
>
>   After the loop ends you will have a random point inside the sphere
> of radius 5 in 'LightLocation'.
>
> -- 
> #macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb
M()}}
> N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
> N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  -
Warp -


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