Thanks to Marc-Hendrik Bremer:

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Preview of image 'prison and paradigm.jpg'

"Kirk Andrews" <kir### [at] tektonartcom> wrote:
> Thanks to Marc-Hendrik Bremer:

That's great!

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"Janet" <par### [at] attnet> wrote:
> "Kirk Andrews" <kir### [at] tektonartcom> wrote:
> > Thanks to Marc-Hendrik Bremer:
>
> That's great!

Thanks!

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"Kirk Andrews" <kir### [at] tektonartcom> schreef in bericht 
news:web.47e45727d587afb2a5d4a01d0@news.povray.org...
> Thanks to Marc-Hendrik Bremer:
>

LOL!
Now you are going for an Escher-like interpretation! This is a kind of 
prisoner's torture... :-)

Thomas

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I really like this image (and the previous) but it looks very aliased (and 
the area light looks very grainy). Are you using anti-aliasing?

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

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Kirk Andrews wrote:
> Thanks to Marc-Hendrik Bremer:
> 
> 
> ------------------------------------------------------------------------
> 

Nasty! Me likes :D.

-- 
Eero "Aero" Ahonen
    http://www.zbxt.net
       aer### [at] removethiszbxtnetinvalid

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"Slime" <fak### [at] emailaddress> wrote:
> I really like this image (and the previous) but it looks very aliased (and
> the area light looks very grainy). Are you using anti-aliasing?
>
>  - Slime
>  [ http://www.slimeland.com/ ]

I am, but the high contrast messes it up, unfortunately.  Maybe someone can
recommend better area light settings.  I've tried up to 5x5 with adaptive 1 and
it still comes out grainy. Of course, the wall has some texture, which is
probably part of it as well.

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Kirk Andrews nous apporta ses lumieres en ce 2008/03/22 10:29:
> "Slime" <fak### [at] emailaddress> wrote:
>> I really like this image (and the previous) but it looks very aliased (and
>> the area light looks very grainy). Are you using anti-aliasing?
>>
>>  - Slime
>>  [ http://www.slimeland.com/ ]
> 
> I am, but the high contrast messes it up, unfortunately.  Maybe someone can
> recommend better area light settings.  I've tried up to 5x5 with adaptive 1 and
> it still comes out grainy. Of course, the wall has some texture, which is
> probably part of it as well.
> 
A 5*5 area_light is very sparse. Try 17*17, 33*33 or even 65*65. It will be 
almost as fast, only the penumbrea will take a little more time thanks to adaptive.
Whenever you use adaptive, increasing the density of the area_light usualy only 
have a small effect on the render time.

-- 
Alain
-------------------------------------------------
  "Having a smoking area in a restaurant is like having a peeing area in a pool."
   --Thomas Pfeffer, American Heart Association

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>> Are you using anti-aliasing?
>
> I am, but the high contrast messes it up, unfortunately.

Although POV-Ray 3.6 tends to have aliasing problems on the edges of bright 
objects, the arrow of the exit sign has aliased edges but doesn't look too 
bright. I wonder if you just need to decrease the anti-aliasing threshold? 
If it's the 3.6 bright object problem, you could try rendering in version 
3.5 or just rendering an extra large image and scaling it down.

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

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Slime nous apporta ses lumieres en ce 2008/03/22 22:43:
>>> Are you using anti-aliasing?
>> I am, but the high contrast messes it up, unfortunately.
> 
> Although POV-Ray 3.6 tends to have aliasing problems on the edges of bright 
> objects, the arrow of the exit sign has aliased edges but doesn't look too 
> bright. I wonder if you just need to decrease the anti-aliasing threshold? 
> If it's the 3.6 bright object problem, you could try rendering in version 
> 3.5 or just rendering an extra large image and scaling it down.
> 
>  - Slime
>  [ http://www.slimeland.com/ ] 
> 
> 
The arrow been red on a dark background, there is about no difference on the 
green and blue chanels. With only the red contributing toward the aa threshold, 
yes, you need to decrease the aa threshold. A value around 0.1 should do the trick.

-- 
Alain
-------------------------------------------------
Don't kiss an elephant on the lips today.

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