Add this function in a subclass to get a notification just before a model (.fbx, .mb file etc.) is imported.
借助此函数，您可以通过代码控制导入设置。
// Disable import of materials if the file contains
// the @ sign marking it as an animation.
class DisableMaterialImport extends AssetPostprocessor {
function OnPreprocessModel () {
if (assetPath.Contains("@")) {
var modelImporter : ModelImporter = assetImporter;
modelImporter.importMaterials = false;
}
}
}