When rotated 180 degrees, the Tiles do not receive light，
However, when you switch the Tiles to no light, the problem will be solved, but the material will become ugly
Hi @a5198945741,
What model are you using, and how was it created? I ask because the most likely cause is that the normals in the model are incorrect.
osgb converted to 3Dtiles, check no lighting is no problem, but it will lose the texture of the original material, the real conversion mode should be what?
You can use Unreal’s “World Normal” buffer visualization to check the normals:
Our preferred tool for creating 3D Tiles is, of course, Cesium ion. If you tell me more about your source data and how you’re processing it, I might be able to offer more specific recommendations.
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I have used a lot of Chinese conversion software, and it is necessary to turn on no light to make the choice, otherwise it will turn black, which is said to be caused by the engine. Has your team ever encountered such a problem in use? Although no light can be solved, but lost the original material texture
I haven’t used that software, and I can’t read it or translate a screenshot, so I don’t think I’ll be much help. If you’re not seeing the same problem with other models, though, especially those created by Cesium ion, then I’m inclined to say the tool is producing models that are invalid in some way. It might be helpful to run it through the 3D Tiles Validator:
If you believe the model is valid, and yet it is being rendered incorrectly by Cesium for Unreal, please provide a tileset that demonstrates the problem so that we can debug.
All tiles have this problem. I think it is a normal problem. If no light is checked, UE will receive light, but if no light is checked, UE will only receive light when it is not selected