• Which the release of FS2020 we see an explosition of activity on the forun and of course we are very happy to see this. But having all questions about FS2020 in one forum becomes a bit messy. So therefore we would like to ask you all to use the following guidelines when posting your questions:

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Problem ground polygon Sketchup + ADE


In Sketchup with the geoposition option, I created a rectangle with juxtaposed images. All images have been unlocked and exploded to form a single entity.
The .SKP file has been exported to DAE file for use by modelconverterX (resized) and creation .BGL and .BMP are ok.
My problem: when viewed in FS9, the file is visible but not the runway and night, all lights are invisible. Does anyone have a solution? Explain my mistake? I have already explored the layers but without success.

Best Regards

This is more likely NOT related to anything done with your Sketchup work-flow described above. :scratchch

When creating / modifying an airport, one must use the same Altitude value (in Meters AMSL) within ex: ADE for:

* Airport Properties (Airport Reference Point aka "ARP")

* Runways

* Airport Background Polygon (aka "Airport Boundary") polygon

NOTE: Special tools are needed to modify a Airport Background Polygon (aka "ABP", aka "Airport Boundary" polygon) in FS2004 (aka "FS9").

AFAIK, ADE in 'FS9 mode' (aka "ADE9") does not have the capability to 'modify' a ABP, so one must use SBuilder for FS9 (aka "SBuilder 2.05")

Additionally, at the same Altitude as the airport infrastructure objects above, you will also need a "Terrain Flatten", which ADE9 can make as a SCASM Area16N legacy format BGL.

Once all the above airport infrastructure objects are in place at the same Altitude, one must align the Ground Polygon (aka "G-Poly").

A Sketchup exported Collada *.DAE (or a Google Earth *.KMZ) file is then imported into MCX via "Ground Polygon Wizard" (aka "GPW").

In MCX-GPW, for FS9 G-Polys, one assigns a VTP layer number to be used for display of the G-Poly (typically starting at layer # 16 or higher).

FYI: If more than (1) such G-Poly is used which overlaps another G-Poly, their assigned individual G-Poly VTP layer numbers must be separated by (3) interposed layer numbers; so if the first G-Poly is at layer #16, the next one above would be at layer # 20 ...et seq. :pushpin:

BTW: FS9 G-Polys are 'flat' 3D objects in a non-MDL file format using Z-Bias and 'minimal' Material Properties, compiled by SCASM / ASM.

This type of G-Poly 'may' exclude other underlying 3D objects (including those placed as Autogen), and is intended to display on top of default BGLComp-compiled Runways.

After using this work-flow, if you are still having issues you wish to resolve, please post another reply (with screenshots / more details). :)

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Hi Gary,
I thank you very much for your very complete and quick answer.
I find that I still have to learn a lot.
I will analyze and try to understand, to implement all your information.
I take note of your remarks and I will try to be as complete as possible in my next post
Kind regards