I am about to give up ;(

Here is my latet render:

http://img144.imageshack.us/img144/3954/bedroom01jbb8.jpg

Here is radiosity settings:

radiosity {
 pretrace_start 0.08
 pretrace_end 0.005
 adaptive 2
 error_bound 1.8
 count 700
 recursion_limit 3
 brightness 1.5
        low_error_factor 0.2
        nearest_count 7
 }

Here is a sphere material around my scene:

pigment {
      gradient y
      color_map {
      [0.0   color rgb <1, 0.887, 0.653>]
      [1.0   color rgb <0.313, 0.610, 1>]

   }
translate -y*.5
scale 300*4
     }
finish {
    ambient 0.5
}

I am somewhat satisfied with quality, but I got that illumination behind
closet, there is not enough contrast on the image and lighting doesn't look
realistically :( I don;t know why and I don't know what else to do :(
I need to get results as with Indigo (at least as close as possible).
Help me please :/

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> Help me please :/

You might want to look at Hildur Kolbrun Andresdottir's radiosity tutorial.
http://www.simnet.is/hildurka/content/tut1page.htm

Some important things to remember... the ambient setting in normal, non-
radiosity mode mimics ambient light, but in radiosity mode the ambient
setting in the finish of objects is the amount of light emitted. Since
most objects don't emit light, most objects in a radiosity scene should
have ambient 0. An important exception is the sky, which should emit.
The light behind the dresser looks like the ambient is not zero in some
finish near there.

Hildur's recommended settings are:

radiosity {
   brightness 2
   count 100
   error_bound 0.15
   gray_threshold 0.0
   low_error_factor 0.2
   minimum_reuse 0.015
   nearest_count 10
   recursion_limit 5
   adc_bailout 0.01
   max_sample 0.5
   media off
   normal off
   always_sample 1
   pretrace_start 0.08
   pretrace_end 0.01
}

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Thank you Tim. I will go over the tutorial and I will check my materials
once again to see if I have forgotten to put ambient value n 0.

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Hash: SHA1

motorsep wrote:
> Thank you Tim. I will go over the tutorial and I will check my materials
> once again to see if I have forgotten to put ambient value n 0.
> 
	Another possible cause for the bright area behind the closet is the
'brightness' keyword. IMO, you'd be better of using a brightness of
1 and if that is too dark, use ambient (with low values of course)
to raise the overall light level. This has two advantages:
 - you can get more control over where the scene is lighted by using
different ambient values for different objects;
 - this is more physically realistic: maximum realism would be
gotten with "brightness 1", but "recursion_limit infinite". Since
that is of course not possible, a low level of ambient light will
simulate the additional recursion levels.

		Jerome
- --
+------------------------- Jerome M. BERGER ---------------------+
|    mailto:jeb### [at] freefr      | ICQ:    238062172            |
|    http://jeberger.free.fr/     | Jabber: jeb### [at] jabberfr   |
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I have one question:


artefacts showing up, similar to the ones you have in your latest render,
when I tried to let the light shine through glass for reflections. If you

this.


the outside as well. I have so far accepted that the outside will always be
overexposed, but you could try to cheat by using darker textures on the
outside.


better settings.

Hildur Kolbrun

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