FBX and Collada are used because they currently seem to be the most widely supported formats (i.e. If a triangle in the mesh has vertex positions at A, B, C, then, well, those vertices are positioned at A, B and C no matter which file format they came from.Ĭlick to expand.No. We try to document as many gotchas with 3D applications in the docs.īut if the exporter from your 3D application into some format does correctly export all the data you need, then in the game there's no difference at all.
Getting proper UVs if no proper material is assigned in 3D application can be tricky. For example, getting per-vertex colors from 3dsMax could be tricky. Some exporters for some 3D applications have troubles with one or the other feature. For most scenarios, native importing works perfectly (internally it exports to FBX or Collada in the background), and manually exporting to FBX or Collada or OBJ or. So the only question is whether the exporter to some mesh format from your 3D application does export all the data you need. So, really, any mesh format gets converted into the same representation. This internal format should not worry you at all it's basically just vertex/index buffers plus some table of "which material gets which portion of the mesh" for models that use multiple materials. All mesh files are converted into an internal format by Unity.
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