Hm, this is getting strange.
I looked into this a bit.
Here is what I found (see attached image):
The lower left portion of the image shows part of the Section View (No.3) in which one can see that that Window is transparent in Section because the mullions of the Window behind it can be seen.
No 2. in the image shows 2 Views saved from the same Section.
The upper one was automatically created when the Section Line was drawn.
In the settings of this View, transparency is set to ON in 3D.
I opened this Section View (by double-click).
Then I changed Transparency to OFF in 3D Window Settings.
Then I opened the settings of this Section View (
E-03 South Elevation).
I clicked the Get Current Window's Settings (No. 1 on image).
In the
3D only panel of the Dialog, the
Redefine Image Settings with Current checkbox becomes checked (although it is greyed). That it gets checked would cause me to think it will store the change. However, when I OK the Dialog and regenerate the View from the Model, nothing changes.
So maybe the greyed status of the whole panel means that for Section/Elevation Views that are created by the placement of the Section Line, these settings cannot be changed. I don't know why.
So it looks like you are right: it is not possible to change its 3D settings.
What I did to work around this is the following:
1. Double clicked the
E-03 South Elevation to open its Section View.
2. Modify the transparency setting in the 3D Window Settings Dialog to OFF.
3. Save a new View with the name
E-03 South Elevation-2.
Now, here comes another strange thing: this newly created View cannot be dragged under the Section/Elevation Views, so although it is a View of a Section, it cannor be categorized under the Section Views group (see lower No. 2 in the attached image).
Maybe this is because only those Views are placed in the Section/Elevation group in the View Map that are generated automatically by Archicad when you place a new Section/Elevation on the Floor Plan.
So this is not very clear for me why it works this way but it seems that is the way it works.
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