Inspired by recent radiosity posts I made this one. Uses no light sources.

  What's so different with this one? Render time. Took less than 8 minutes to
render in my 1.2GHz Athlon.

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Attachments:
Download 'radtest.jpg' (19 KB)

Preview of image 'radtest.jpg'

This is the future, Warp!  :o)   I really enjoy realistic lighting (I mean
areas of light).. Good work, too.. Do you expect it will soon be possible to
use SMALL areas of light?  A bulb or a neon cylinder, for example.. Such
objects are too small for now.



Warp <war### [at] tagpovrayorg> wrote in message news:3bc4a7b3@news.povray.org...
>   Inspired by recent radiosity posts I made this one. Uses no light
sources.
>
>   What's so different with this one? Render time. Took less than 8 minutes
to
> render in my 1.2GHz Athlon.

Post a reply to this message

Hugo <hua### [at] post3teledk> wrote:
: Do you expect it will soon be possible to
: use SMALL areas of light?  A bulb or a neon cylinder, for example..

  You mean like this? (Render time 8.5 minutes.)

Post a reply to this message

Attachments:
Download 'radtest.jpg' (24 KB)

Preview of image 'radtest.jpg'

Wow, is that one light_source-free? It looks like you used an area light or
something.

Of course, if you can use an area light for that effect, then you might as
well, instead of just relying on radiosity. That could cause some problems,
though, when using looks_like - a bright light bulb containing a light
source would emit twice as much light with radiosity on than it would with
it off.

- Slime
[ http://www.slimeland.com/ ]
[ http://www.slimeland.com/images/ ]

"Warp" <war### [at] tagpovrayorg> wrote in message
news:3bc4cbc5@news.povray.org...
> Hugo <hua### [at] post3teledk> wrote:
> : Do you expect it will soon be possible to
> : use SMALL areas of light?  A bulb or a neon cylinder, for example..
>
>   You mean like this? (Render time 8.5 minutes.)
>
>


----------------------------------------------------------------------------
----


>
>
> --
> #macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
> rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
> ],13),8)-3,10>#end blob{N(array[6]{11117333955,
> 7382340,3358,3900569407,970,4254934330},0)}//                     - Warp -

Post a reply to this message

You got me.  :o)  I don't know how you did that, but maybe it's the walls
that make it work out.. I say you'll have real problems with 2 spheres only,
one of them to emit light and one to catch it - and eventually a ground
plane.. I tried this with many radiosity settings, all gives a total mess,
even with render times over a day.

> : Do you expect it will soon be possible to
> : use SMALL areas of light?  A bulb or a neon cylinder, for example..
>
>   You mean like this? (Render time 8.5 minutes.)

Post a reply to this message

I forgot to mention that recursion limit should be above 1 for the problems
to occur.. In case you want to start a test and prove I'm wrong.. If you
succeed please share the code, heheh..  :o)


Hugo

> You got me.  :o)  I don't know how you did that, but maybe it's the walls
> that make it work out.. I say you'll have real problems with 2 spheres
only,
> one of them to emit light and one to catch it - and eventually a ground
> plane.. I tried this with many radiosity settings, all gives a total mess,
> even with render times over a day.
>
> > : Do you expect it will soon be possible to
> > : use SMALL areas of light?  A bulb or a neon cylinder, for example..
> >
> >   You mean like this? (Render time 8.5 minutes.)

Post a reply to this message

I like this one better. The other was too dark for my taste. And how
about that render time then? My brain equates radiosity with hours :-/

Alf

"Warp" <war### [at] tagpovrayorg> wrote in message
news:3bc4cbc5@news.povray.org...
[snip]
>   You mean like this? (Render time 8.5 minutes.)

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I would add some depth to your *light bulb*. Since in POV light is very
directional the wall where the bulb is looks really too dark compared to the
other ones. Or just lower brilliance.
Neat scene.
Radiosity seems to be really in fashion nowadays... :-)

--
Jonathan.

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What radiosity settings did you use for this image?

-tgq


"Warp" <war### [at] tagpovrayorg> wrote in message
news:3bc4cbc5@news.povray.org...
> Hugo <hua### [at] post3teledk> wrote:
> : Do you expect it will soon be possible to
> : use SMALL areas of light?  A bulb or a neon cylinder, for example..
>
>   You mean like this? (Render time 8.5 minutes.)
>
>


----------------------------------------------------------------------------
----


>
>
> --
> #macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
> rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
> ],13),8)-3,10>#end blob{N(array[6]{11117333955,
> 7382340,3358,3900569407,970,4254934330},0)}//                     - Warp -

Post a reply to this message

Slime <noo### [at] hotmailcom> wrote:
: Wow, is that one light_source-free?

  Nope, it uses an area light. (I don't undestand why that somehow feels
like "cheating"... What's so wrong in using a light source?)

-- 
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}//                     - Warp -

Post a reply to this message