Hmmm...what radiosity settings are you using?  And do you have ambient lighting
turned off?

If you really want to add some extra realism (and extra render time), use an
area light.  Don't use it in the animation, of course.

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"Kirk Andrews" <kir### [at] tektonartcom> wrote:
> Hmmm...what radiosity settings are you using?  And do you have ambient lighting
> turned off?
>
> If you really want to add some extra realism (and extra render time), use an
> area light.  Don't use it in the animation, of course.

I am using the default radiosity settings.  I never used radiosity before this,
but I am still toying with effects.

And an area light was used once, but it added a ton of extra time for the
animation, and It wouldn't have been done in time for the actual due date.

I'll toy with the settings a bit more.  If you have any ideas, by al means, I
would like to know them.

-Nimish

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"Nimish Ajmani" <nomail@nomail> wrote:
> "Kirk Andrews" <kir### [at] tektonartcom> wrote:
> > Hmmm...what radiosity settings are you using?  And do you have ambient lighting
> > turned off?
> >
> > If you really want to add some extra realism (and extra render time), use an
> > area light.  Don't use it in the animation, of course.
>
> I am using the default radiosity settings.  I never used radiosity before this,
> but I am still toying with effects.
>
> And an area light was used once, but it added a ton of extra time for the
> animation, and It wouldn't have been done in time for the actual due date.
>
> I'll toy with the settings a bit more.  If you have any ideas, by al means, I
> would like to know them.
>
> -Nimish

I recommend trying this:

Set the default texture to ambient 0.  (You can add the default statement from
the Misc Directives insert menu).  Set radiosity settings to:

radiosity {
  count 5            //increase if blochy.  Sometimes all you need is 1.
  error_bound .8     //The smaller the value, the better and the slower.
  recursion_limit 1  //all you really need, most of the time
}

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> And an area light was used once, but it added a ton of extra time for the
> animation, and It wouldn't have been done in time for the actual due date.

Did you see my previous post? I have access to some 8-core machines.

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Nimish Ajmani nous apporta ses lumieres en ce 2008/03/03 07:58:
> "Kirk Andrews" <kir### [at] tektonartcom> wrote:
>> Hmmm...what radiosity settings are you using?  And do you have ambient lighting
>> turned off?
>>
>> If you really want to add some extra realism (and extra render time), use an
>> area light.  Don't use it in the animation, of course.
> 
> I am using the default radiosity settings.  I never used radiosity before this,
> but I am still toying with effects.
> 
> And an area light was used once, but it added a ton of extra time for the
> animation, and It wouldn't have been done in time for the actual due date.
> 
> I'll toy with the settings a bit more.  If you have any ideas, by al means, I
> would like to know them.
> 
> -Nimish
> 
A way to greatly accelerate area_light is to add adaptive 0 or adaptive 1 if you 
get artefacts. That way, your area_light is almost as fast as a regular light 
for most of the scene, it only slow down in the penumbrae. Optimum aray for 
adaptive are: 5, 9, 17, 33, 65,... Even in the penumgrae, an adaptive area_light 
don't sample every points of the array, just those whose neibours are different.

-- 
Alain
-------------------------------------------------
You know you've been raytracing too long when you read about an algorithm or 
datastructure and your first thought is: "How can I use this to speed up 
raytracing?"
Christoph Rieder

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"Nimish Ajmani" <nomail@nomail> wrote in message 
news:web.47cb1c9ccfb38859835874580@news.povray.org...

     Very nice, but my only crit would be to tan the coffee table glass a 
little as it's quite hard to see at the moment, (for me anyway), but keep up 
the good work, it's looking good!

        ~Steve~



> -Nimish

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Thanks to everyone for all of the critique.  WE had to show our teacher to day
our progress, and he was extremely pleased with my work.  Thanks to all who
helped with it.

I'll post new pics soon, but I've started the animation portion, so I might
intersperse an animation here or there.

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A suggestion for the animation...  take the ceiling off all the rooms 
and start your flight path by looking down from above...  like a floor 
plan or 2-D drawing...  then drop down into one of the rooms and wander 
about on a spline path.

Love the work so far.  Won't be offended if you ignore this suggestion :-)

Nimish Ajmani wrote:
> Thanks to everyone for all of the critique.  WE had to show our teacher to day
> our progress, and he was extremely pleased with my work.  Thanks to all who
> helped with it.
> 
> I'll post new pics soon, but I've started the animation portion, so I might
> intersperse an animation here or there.
> 
> 
>

Post a reply to this message

Spock <Spo### [at] nospamcom> wrote:
> A suggestion for the animation...  take the ceiling off all the rooms
> and start your flight path by looking down from above...  like a floor
> plan or 2-D drawing...  then drop down into one of the rooms and wander
> about on a spline path.
>
> Love the work so far.  Won't be offended if you ignore this suggestion :-)
>

I had already planned a spline for a fly-around, but I love the idea of
"dropping in a room."  I will include it, and thank you for your suggestion.

-Nimish

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>> I did that so I could have an animated tour made for the house.  
>> Unfortunately,
>> radiosity makes that kinda diffucult, as the project is due friday, 
>> and It's
>> taking several minutes per frame, for nearly 10000 frames.
> 
> I can help you with slow renders, but unfortunately my system might 
> cause problems with radiosity... Could be worth a try anyway. Email me 
> the sources as they are now (unfinished), and I'll try a few dozen 
> frames. If it ends up working correctly, I could do the full render when 
> you're done modeling.

I tried a radiosity scene to see if it worked correctly. And indeed, I 
have a problem... The progress bar goes *nuts* during the prerender 
radiosity passes :) But that seems to be the only problem.

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