Howto:Create new landmark models

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1. Find images of the building on Wikimedia or Google Images, upload them to a 3D model generation tool like Meshy.ai, and download the generated model once finished.

2. Import the model into Blender and edit it as needed, scaling its dimensions to match the real-world building.

3. Once finished editing in Blender, reduce the size of the model to comply with the maximum upload file size limit of 2,000,000 bytes (approximately 1.9 MiB). This is done by using Limited Dissolve, Merge by Distance, and the Decimate modifier.

4. Export the model in .ac format using Blender's AC3D export plugin. Note that the exported texture filename defaults to .png (without a name prefix). Rename your texture file, then open the .ac file in a text editor and update the line texture ".png" to texture your_name.png".

5. In the game, place the object using the UFO aircraft so that its location and heading match reality, then press the E or D key to export.

Troubleshooting / Common Issues

The model's texture displays correctly in Blender's "Shading" tab, but appears mottled/glitched in-game:

• Cause: The shader nodes may have applied extra processing to the UV mapping (such as scaling or offsets).
• Solution: Go to the UV Editing tab, select all vertices of the UV layout, and scale/translate them so they align properly with the texture image.