I want to import a Porshe into UE with materials, so I chose gltf/glb, but when I import the model into UE, the quality of the model’s surface is very low. Anyone has idea about this?
Unreal won’t import smooth preview meshes, so the smooth must be baked into the model before importing to unreal. You can do this in another application like Blender, Maya, etc. You’re seeing what the native geometry of the model looks like.
2 things: you combined all the meshes together in a single static mesh on import of your model AND nanite is most likely enabled on your static mesh.
The issue is that some materials (translucent ones) are not nanite compatible so nanite cannot run properly and I guess it shows you the fallback mesh that is not high details. You should have warnings in your output log.
So either you disable nanite on the static mesh of your full model, or you only use nanite compatible materials, or you reimport with individual meshes to benefit from nanite. You could even merge part of the car together if you want to reduce number of actors.
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