Question How to implement ScriptedImporter with platform dependency and accelerator friendly?

Hi. I tried to implement my own asset importer by using ScriptedImported.

My asset generates Texture3D so it's format should be changed per each platform (ex, windows-DX5, android-ETC and so on). Also it will process number of textures so its artifacts should be cached.

How to correctly implement ScriptedImporter for these case?

I think "AssetImporters.AssetImportContext.DependsOnCustomDependency()" can be used but it should be called before OnImportAsset() because if the asset is cached OnImportAsset() will not be called.

Thanks.

 

did you manage to figure out a solution for this?

 

No. There is still no documentation.

 

So this is really terrible, but the way you make a ScriptedImporter produce a platform-dependent artifact is to access AssetImportContext.selectedBuildTarget during OnImportAsset. They do some code in the getter for the property that flags the importer as platform dependent. See https://docs.unity3d.com/ScriptReference/AssetImporters.AssetImportContext-selectedBuildTarget.html. This is perhaps the most confusing and obfuscated way they could've implemented this, and a complete misuse of getters. Thanks, Unity.