Problems opening OBJ and FBX files in Unity
Hi! I made different 3D models in Rhino for a proyect in Unity. I exported them in OBJ and FBX format but the problem is that when I open them in Unity the models don´t look complete. For example, it should look like this
But when I export it to Unity it looks like this
I don´t know what´s wrong please help :(
,Hi, I made different models in Rhino and when I export them to Unity they are incomplete. I don´t know what to do, I tried with OBJ and FBX and they look the same.
Help :(
Answer by streeetwalker · Dec 12, 2020 at 06:22 PM
It looks like the vertex or surface normals are flipped the wrong way for parts of your model. They tell Unity how to render the outside facet of a model's mesh triangles. If you rotate it to view the bottom side in Unity and those parts become visible then you know that is the problem.
You must have a way of setting the normals in your modeling program, or you can try to have Unity recalculate the normals in the Import window - click on the asset in the Project folder and look for the option down towards the bottom of the window.
See the Import window options about midway down in the first document: https://docs.unity3d.com/Manual/ImportingModelFiles.html#project https://docs.unity3d.com/Manual/class-FBXImporter.html
If that doesn't work you have to fix it in the modeling program.