OpenGL scene with transparent background + native widgets below and above

Question

I'm trying to achieve the following view:

If the views were layered (bottom to top):

• layer 1: basic XML layout (image, buttons etc)
• layer 2: OpenGL scene with transparent background such that we can see through
• layer 3: some widgets over the OpenGL scene (ie TextView)

I've used GLSurfaceView and TextureView along those lines, without success. I can set opacity to the surface, but the whole view becomes semi-transparent, and setZOrderOnTop has to be set to true, so no widget can live atop. I've also tried rajawali3d, same result

Can this be achieve at all? Using stock views? Or a library?

update: also tried JPCT-AE, same results.

update 2: is seems there was way to have a floating OpenGL view with UnityPlayer when it was using a SurfaceView, but it's no longer the case in the newer SDK.

Miser

do buttons need to be in the layer below?? – Orts

No, that was just as example. – Miser

@Paulo there's a 24h grace period. thanks! – Miser

Did you find the answer? – Slaver

@etrusks: there's no solution for opengl+native widgets. If you want transparency on the opengl view, it has to be at the top, and nothing can be drawn over. – Miser

Thanks for the answer! Thats what I figured - started to implement those top views inside openGL view. – Slaver