What about buffers?

[smhk]

This incredible project shows us how to use TextureUpdateCallback to move

textures from iOS native code -> Unity

In the "old days" you had to use a native plugin, such as explained in the famous example at the bottom of this page: https://docs.unity3d.com/Manual/NativePluginInterface.html

(Aside - Unfortunately, that demo has never worked for iOS; and I believe nobody has ever got that process working for iOS.)

So TextureUpdateCallback is a miracle for

textures from iOS native code -> Unity

But what about

buffers (like vertex buffers, matrices etc) from iOS native code -> Unity

Very often you want to load up buffers, in the native iOS code, and send that back to Unity (usually to use in a shader each frame).

Is there a way to do this?

[keijiro]

The short answer is no, there is no such easy way to update buffer from a native plugin.

One possible alternative is using ComputeBuffer.SetData<T>(NativeArray<T>). You can easily update a NativeArray from a native plugin via an unsafe pointer, then apply it to a compute buffer on the C# side using SetData.

[smhk]

Thanks for the prompt answer - understood.

And that's a great idea about SetData hanks for that.

It would be great to have an example project for SetData .

Thanks again