[Radiance-general] (no subject)

[Gregory J. Ward]

Hi Santiago,

I am sending you the scripts in a separate message, as I don't really  
want to share these with the whole mailing list.  My intention is to  
replace them with something more general and robust in the coming  
weeks, and I don't want to create a lot of confusion beforehand.

The noise you are seeing can be reduced with different parameter  
settings or high resolution sampling, but it will never go away.   
Rtcontrib, unlike rtrace and the other Radiance tools, produces an  
unbiased Monte Carlo sampling, which shows variance (noise) which is  
an honest estimate of the uncertainty at each pixel.  You can try  
running it through a noise reduction filter if you find it offensive,  
but we can't use the irradiance interpolation algorithm with rtcontrib.

-Greg

> From: Santiago Torres <tiago at tkh.att.ne.jp>
> Date: October 31, 2005 9:33:53 PM PST
>
> Hello Greg,
>
> Thank you for your reply. Unfortunately I`m short of time, so if  
> possible I would like to see your scripts, thank you.
> I`ve also uploaded a couple of (very noisy) images that I`m  
> getting. Probably this is because I`m not using the right scripts,  
> but just as an illustration.
> The images are in:
> http://home.att.ne.jp/banana/tiago/radiance/c_79.jpg    (example of  
> one patch)
> http://home.att.ne.jp/banana/tiago/radiance/output.jpg    (result  
> combining all patches)
> Regards,
>
> Santiago
>