Is your feature request related to a problem? Please describe.
Filament only supports picking opaque renderables, however, it may be helpful to pick transparent renderables, for example, a glass Stanford dragon or an Android View renderable in SceneView.

Describe the solution you'd like
It's possible to move picking to a separate pass so that transparent renderables can participate in picking without affecting the structure buffer. I've already created a patch that implements that. It may be also useful to support excluding materials from picking.

Describe alternatives you've considered
Using AABB picking instead of Filament picking in SceneView, however, picking transparent renderables can be useful in other frameworks and applications.

OS and backend
The feature isn't OS or backend specific.