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Radiance Glarendx Get Zero DGI

asked 2018-05-27 13:19:00 -0600

zjingwen's avatar

updated 2018-05-29 10:20:41 -0600

Dear all,

I am trying to compute DGI using Glarendx from a hdr file. However, it always gets a zero for me. Can anybody tell me whats the problem and how to resolve it. Thanks. The hdr file is attached in link below. link text


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A little problem I got with OpenStudio/Radiance is the orientation of the daylight sensor in the model. The arrow should be oriented towards the window.

BORM's avatar BORM  ( 2018-05-29 10:59:33 -0600 )edit

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answered 2018-05-29 10:34:34 -0600

The trouble is that findglare does not find any glare sources in this image. By default, findglare identifies areas that are seven times the average luminance as glare sources. Your scene simply does not have that much variation in it. If you look at the man page there is a -t option that allows you to adjust this threshold.

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Asked: 2018-05-27 13:16:21 -0600

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Last updated: May 29 '18