OpenGL scene with transparent background + native widgets below and above

Asked Oct 18 '16 at 19:55

Active Oct 27 '16 at 22:15

Viewed 403 times

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.

edited May 23 '17 at 12:00

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asked Oct 18 '16 at 19:55

mbmc

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do buttons need to be in the layer below?? – eduyayo Oct 27 '16 at 09:36
No, that was just as example. – mbmc Oct 27 '16 at 16:35
@Paulo there's a 24h grace period. thanks! – mbmc Oct 27 '16 at 22:15
Did you find the answer? – etrusks Jan 07 '18 at 09:13
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@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. – mbmc Jan 08 '18 at 19:09
Thanks for the answer! Thats what I figured - started to implement those top views inside openGL view. – etrusks Jan 08 '18 at 20:22

OpenGL scene with transparent background + native widgets below and above

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