[Unity] Unity imports fbx files without texture problems (white model)

When using Unity to import fbx model files, you will always encounter texture loss problems, but it is normal to open and view this model with 3DMax. Finally solved it after trying many methods. Now record the solution steps:

1. First use 3dmax to open the fbx model. After opening, a .fbm folder will be generated in the directory where the file is located (important), which will be used later. 2. Export the model directly and check "Embedded Media" in the settings

3. Put the re-exported fbx model and the fbm folder in step 1 into unity, click "Extract Materials" in the fbx model settings, and select the corresponding fbm folder.

4. Now the model has normal textures