[Radiance-general] reflector size

[Greg Ward]

Have you rendered an image?  It helps a lot to tell what the source of errors might be.  My first suggestion would be to increase the -ad and -as settings.  Try doubling them to start.

-Greg

> From: shailan zareiy <sh.zareiy at gmail.com>
> Date: November 12, 2012 9:52:39 AM PST
> 
> Thank you Greg for your quick answer. 
> yes, the light shelf i simulate is a mirrored shelf.The material that i assign to it is  
> void mirror Mirror3
> 0
> 0
> 3   .91 .91 .91
> and the parameters of rendering are :
> -dp=2048
> -ar=32
> -ms=0.063
> -ds=.2
> -dt=.05
> -dc=.75
> -dr=3
> -sj=1
> -st=.01
> -ab=3
> -aa=.1
> -ad=512
> -as=256
> -av=0.01 0.01 0.01
> -lr=12
> -lw=.0005
> I hope that these information is efficient
> 
> On Mon, Nov 12, 2012 at 9:08 PM, Greg Ward <gregoryjward at gmail.com> wrote:
> Hi Shailan,
> 
> You need to give more details.  Is this a mirrored light shelf, and what material does it use?
> 
> There is no "minimum size" for sampling in Radiance.  However, depending on your scene and your rendering parameters, errors may increase as a bright, important surface gets relatively smaller and it may be necessary to adjust some parameters to compensate.
> 
> Without an image or any other information about your scene, it is impossible to be of help.
> 
> Best,
> -Greg
> 
> > From: shailan zareiy <sh.zareiy at gmail.com>
> > Date: November 12, 2012 9:08:36 AM PST
> >
> > hi every body.i am creating a lightshelf in radiance. i have a question.what is the minimum size that radiance considers for a reflector. my simulations shows some mistakes when the lightshelf is less than 0.5 meter
> > Thank you
> > Sincerely
> > Shailan zareiy
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.radiance-online.org/pipermail/radiance-general/attachments/20121112/cd53f553/attachment.html>