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Need help converting MSFS2020 3D Models to MSFS2024

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unitedstates
I have an MSFS2020 Airport that i was very happy with that I am trying to convert over to MSFS2024. With the LOD rules my custom models are being culled at a very short distance. I have been working for over a month trying to figure it out on my own. I have even had ChatGPT give me step by step guides in blender of how to convert a 3D Model with LODs for MSFS2024 and I just have had zero luck and i am at my wits end. This project only has a total of 7 custom models. Is anybody willing to help me out? Thanks!!
 
ModelConverterX has some routines to create LODs. And there is always the giant invisible box that extends the range of a single LOD.
 
thanks for your reply. i saw that on a repvious post. i couldnt get it to work but i will try again. i am pretty sure i am just doing it wrong. i am prety good at creating airports. just not so much the 3d modeling and ll that goes along with that
 
thanks for your reply. i saw that on a repvious post. i couldnt get it to work but i will try again. i am pretty sure i am just doing it wrong. i am prety good at creating airports. just not so much the 3d modeling and ll that goes along with that
Hello.

I have had great success with ModelConverterX and its LOD function also in MSFS2024. You can see the adjustments in real-time which is very helpful.
 
Here's an example of Asobo's LODs. I use an example from MSFS 2020, but the object is essentially the same for MSFS 2024:

Gen_Hangar01 LOD0
LOD0.png

There are some asset parts, like lights, doors, aircon units... Nice details.

LOD1:
LOD1.png

In LOD1, they dropped all the little details.

LOD2:
LOD2.png

In LOD2 (the final LOD they used), they use only the basic blockout of the model, and use just colors for the materials.

The xml will look about like this:
XML:
<?xml version="1.0" encoding="utf-8"?>
<ModelInfo guid="{65b40360-eadb-4927-82cb-a5af526f5377}" version="1.1">
  <LODS>
    <LOD minSize="15" ModelFile="Gen_Hangar01_LOD0.gltf"/>
    <LOD minSize="8" ModelFile="Gen_Hangar01_LOD1.gltf"/>
    <LOD minSize="0" ModelFile="Gen_Hangar01_LOD2.gltf"/>
  </LODS>
</ModelInfo>

And note, with MSFS 2024, the sim decides the actual minsize regardless of what you write. So there it is for some of Asobo, and Microsoft's models.

You could almost work backwards when making a model. Block out the lowest LOD2 with colors, then from that add mesh and material for the next LOD1, then add asset details for the LOD0. This example used LOD 0-2, but you could use more if needed... perhaps LOD0-4 for a total of 5 LODs.
ModelconverterX is great for making simplified mesh for LODs, but the lowest blockout would probably be best handmade. And the LOD1 (elimination of detailed assets) could also be hand edited from your LOD0. Leaving the Mid-LODs to be simplified by decimation (like MCX does), and perhaps elimination or baked combination of textures and materials.
 
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