Hello,

I´m working to get the ZoneProperty:UserViewFactors:bySurfaceName to work on a test file.

So far, with the great help from Radiance developers we have found a way to automate the writing of these viewfactors. However, once written, the simulation Succeeds but tje test file keeps throwing the same severes in eplusout.err as before

 ** Severe  ** Problem in interior solar distribution calculation (CHKBKS)
 **   ~~~   **    Solar Distribution = FullInteriorExterior will not work in Zone=ZONE_6
 **   ~~~   **    because vertex 1 of back surface=ZONE_6_SRF_8 is in front of receiving surface=ZONE_6_SRF_10
 **   ~~~   **    (Dot Product indicator=30.6234)
 **   ~~~   **    Check surface geometry; if OK, use Solar Distribution = FullExterior instead.
 ** Severe  ** Problem in interior solar distribution calculation (CHKBKS)
 **   ~~~   **    Solar Distribution = FullInteriorExterior will not work in Zone=ZONE_6
 **   ~~~   **    because vertex 2 of back surface=ZONE_6_SRF_8 is in front of receiving surface=ZONE_6_SRF_10
 **   ~~~   **    (Dot Product indicator=24.7603)
 **   ~~~   **    Check surface geometry; if OK, use Solar Distribution = FullExterior instead.
[...]

Is there any specific field in the idf where I need to enable the use of these ZoneProperty:UserViewFactors:bySurfaceName?

The files are here: original model and viewfactor model.

Thanks, Rafael