Surface normal for Glazing windows

Grasshopper
#1

what direction the surface normal to be for a glazed window? wtr it is towards outside of building or inward?

#2

it should be the same on all windows

#3

thank you for your info. I’m taking the Rhino model to DIVA for daylight simulation. in this case, glazing surface normal to be inward or outwards?

#4

Sorry not familiar with DIVA, i was under the impression you were drawing something.

#5

Thank you.
we do create architectural 3D model using RHINO and perform daylight simulation using DIVA plugin for Rhino.

#6

If I remember correctly, outwards .
Can’t you notice it by the values?

#7

I’d make a simplified file both ways, try, and see which works correctly.