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vvoovv / blosm

Blosm addon for Blender. A few clicks import of Google 3D cities, OpenStreetMap, terrain. Global coverage. Source code is in the branch 'release'.
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Vertex Data Errors on Google Tiles #474

Open PhiKuz opened 3 months ago

PhiKuz commented 3 months ago

I am consistently getting tiles that look like they are sharing vertex positions with other tiles. Any idea why this is happening?

image

vvoovv commented 3 months ago

Hi @PhiKuz,

If you can point me to those buildings on the map, I'll take a look.

PhiKuz commented 3 months ago

43.646663793270335, -79.38966379403644 The pull was using the "separate buildings" lod It's not just those buildings, unfortunately, as the "buildings with more details" lod produced this in the same area. These are only examples of the issue, but there are many more on different areas of the tiles. image

vvoovv commented 3 months ago

I managed to capture the problem tile from your first message. It can be downloaded here. Unzip it and import with Blender's built-in glTF importer. Press . (dot) on the Numpad to bring the imported tile into the view.

image

I suspect Blender's built-in glTF importer can't import some tiles correctly. I'll create an issue in the glTF repository.

vvoovv commented 3 months ago

It can be downloaded here.

This tile was imported correctly into the online glTF viewer https://sandbox.babylonjs.com

image

vvoovv commented 3 months ago

I created an issue in the glTF importer repository

PhiKuz commented 3 months ago

I created an issue in the glTF importer repository

Great! Thanks. Since it is a gltf import error, does blosm cache the gltf files locally somewhere that I could access them? It would be nice to not have to download all the files again if they are all perfectly valid, and I would try to import them into UE5 since the upcoming version is supposed to support Draco.

vvoovv commented 3 months ago

Caching of Google 3D Tiles is not allowed according to the section Pre-fetching, caching, or storage of content of the Map Tiles API Policies.

vvoovv commented 3 months ago

The same problem on a pure terrain. glTF file.

After importing the glTF file into Blender: image

After importing the glTF file into https://sandbox.babylonjs.com image

vvoovv commented 3 months ago

The same problem results in a hole on a pure terrain. glTF file.

After importing the glTF file into Blender: image

After importing the glTF file into https://sandbox.babylonjs.com image