Photogrammatry agisoft metashape

[ApolloTwente]

Hi everyone, here's a question about photogrammatry with agisoft metashape. Recently I scanned a car with my drone and took 150 pictures there. With this I ran the workflow from metashape (align pics, build dense cloud, build mesh and build texture. The result was very good, but when I create a stl or an obj file, the model is very bad. How can that be? Can someone point me a tutorial?Thanks in advance. Regards, Sebastian

[OBNRacerMan]

How did you determine that "everything was very good"? On a cloud with a texture?
The texture well hides flaws in the real "physical" (obtained by "scanning") object. We need to see how it looks without textures.