Glare anomalies from Radiance

[John_Hu]

Hi,

I'm working on a study of glare from a reflective building that may effect approaching drivers and I'm getting some strange messages from Radiance.

The process I'm using through the glare study is:
- render images using Radiance from an ecotect model
- use a false colour rendering to display the regions of highest luminance
- run 'glare' via Radiance from Cygwin, setting the luminance threshold from the false colour rendering to locate the glare sources and calculate field luminance (I'm using Cygwin as I couldn't use xglaresrc from Radiance CP)

So, the issues I'm having are:
- findglare returns the glare sources and then displays "findglare: warning -- missing 78% of samples". Why is this and does if have a significant impact on the results?
- I'm getting very high field luminace values, much higher than I would expect.
- Is there any way of checking the field luminance that is calculated by Radiance?

Please find the pic file attached. Thanks in advance for any help you can offer.

John

[yunpeng]

Hello
"findglare: warning -- missing 78% of samples" is not very important, I think it is because: view angle you assigned in glare is larger than the horizontal view angle of your picture files, so you should render a wider angle view picture to give to findglare.
You can run findglare with the rtrace option to get the luminance you want.