Hi Vetle:
Remembering the basic principle and Caveat we should always abide by in FS scenery development: Exclude ...then Replace:
* A ExclusionRectangle is configured to Exclude the specified 3rd party G-Poly tile 3D meta-object
* A Polygon is configured to Replace / add specified objects back to the area where we excluded the 3rd party G-Poly tile 3D meta-object
To verify whether you are replacing in the area of the unwanted 3rd party G-Poly tile 3D meta-object with Scenery objects you have placed:
In addition to a ExclusionRectangle object you placed, have you also placed a Polygon with multiple feature 'Attribute' options checked ?
Note: in this linked SDK Doc:
https://docs.flightsimulator.com/html/Content_Configuration/Environment/Scenery_Objects/Scenery_Object_Definitions.htm?rhhlterm=exclusion rectangle&rhsearch=exclusion rectangle
...that the <Attribute> section contains a link to the Polygons introduction page:
https://docs.flightsimulator.com/html/Developer_Mode/Scenery_Editor/Objects/Polygon_Objects.htm
...and on that Polygons page in the Properties section, it lists "the following Properties which can be edited".
IIRC, we must impose these Attributes on a Polygon placed in a layer above the area of the G-Poly excluded by your ExclusionRectangle:
* Force Detected Buildings
This option can be used to force the rendering of detected buildings for an area.
(MSFS default automatically generated)
* Force Buildings On Tin
This can be used when you have excluded TIN data, but want to still have TIN generated buildings present.
(MSFS default Photogrammetry)
AFAIK, you can add this Polygon to your Project so it loads from the same Asset Group as the one containing your ExclusionRectangle.
Your ExclusionRectangle successfully excludes the G-Poly, when it loads "after" the G-Poly; try putting your Polygon into that same layer.
GaryGB
Remembering the basic principle and Caveat we should always abide by in FS scenery development: Exclude ...then Replace:
* A ExclusionRectangle is configured to Exclude the specified 3rd party G-Poly tile 3D meta-object
* A Polygon is configured to Replace / add specified objects back to the area where we excluded the 3rd party G-Poly tile 3D meta-object
To verify whether you are replacing in the area of the unwanted 3rd party G-Poly tile 3D meta-object with Scenery objects you have placed:
In addition to a ExclusionRectangle object you placed, have you also placed a Polygon with multiple feature 'Attribute' options checked ?

Note: in this linked SDK Doc:
https://docs.flightsimulator.com/html/Content_Configuration/Environment/Scenery_Objects/Scenery_Object_Definitions.htm?rhhlterm=exclusion rectangle&rhsearch=exclusion rectangle
...that the <Attribute> section contains a link to the Polygons introduction page:
https://docs.flightsimulator.com/html/Developer_Mode/Scenery_Editor/Objects/Polygon_Objects.htm
...and on that Polygons page in the Properties section, it lists "the following Properties which can be edited".
IIRC, we must impose these Attributes on a Polygon placed in a layer above the area of the G-Poly excluded by your ExclusionRectangle:
* Force Detected Buildings
This option can be used to force the rendering of detected buildings for an area.
(MSFS default automatically generated)
* Force Buildings On Tin
This can be used when you have excluded TIN data, but want to still have TIN generated buildings present.
(MSFS default Photogrammetry)
AFAIK, you can add this Polygon to your Project so it loads from the same Asset Group as the one containing your ExclusionRectangle.
Your ExclusionRectangle successfully excludes the G-Poly, when it loads "after" the G-Poly; try putting your Polygon into that same layer.
GaryGB
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