Android GLSurfaceView with drawable background

Question

I have a GLSurfaceView with a drawable as background, however only the background is visible when rendered without surfaceView.setZOrderOnTop(true)

I need to avoid using setZOrderOnTop(true) because there are static TextView's being used on top of the GLSurfaceView.

Any suggestions for getting this to work?

score 9 · Accepted Answer · answered Oct 02 '10 at 04:21

9

GLSurfaceView cannot really have a background. The way a surface view works is by cutting a hole through your Activity's window and showing another surface behind. Setting setZOrderOnTop(true) moves the surface above the Activity's window.

answered Oct 02 '10 at 04:21

Romain Guy

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Thank you that was very helpful! Is there a way that you could recommend for achieving what I needed: static background image -> 3d content -> additional views buttons on top or is the only way to just render the static background as texture on a polygon? – Jlam Oct 04 '10 at 17:00
1

I ended up just rendering the background on a polygon behind everything else.. thanks for the tip! – Jlam Oct 12 '10 at 17:37

score 7 · Answer 2 · edited Feb 19 '11 at 13:16

7

false! You can do it. Just an example to show how it works.

glRenderer  = new OpenGLRenderer(context);
view = new GLSurfaceView(context);
view.setEGLConfigChooser(8, 8, 8, 8, 16, 0);
view.setRenderer(glRenderer);
view.getHolder().setFormat(PixelFormat.RGBA_8888);
view.getHolder().setFormat(PixelFormat.TRANSLUCENT);
view.setRenderMode(GLSurfaceView.RENDERMODE_CONTINUOUSLY);

Then use framelayout to put a view under glsurfaceview!

edited Feb 19 '11 at 13:16

McDowell

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answered Feb 19 '11 at 11:33

jonathan

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Thanks. It made my GLSurfaceView descendant transparent. But actually REDERMODE_CONTINUOUSLY is the default value and for me adding the last line crashes the app. – Aleks N. Jan 12 '12 at 18:16
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That's because you have to setRenderMode before view.setRenderer – Justin Buser Apr 04 '12 at 13:49
what to put in FrameLayout to keep the other views above GLsurfaceView? – mayank_droid Sep 04 '13 at 10:03

score 2 · Answer 3 · answered Apr 04 '12 at 13:51

2

Try setZOrderMediaOverlay(true); which should put the gl layer above the background but below the window.

answered Apr 04 '12 at 13:51

Justin Buser

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score 1 · Answer 4 · answered Oct 02 '10 at 01:51

1

Well, since GLSurfaceView is just another view, why not use a FrameLayout to place the GLSurfaceView on top of the ImageView (or whatever you're using to display the drawable.)

answered Oct 02 '10 at 01:51

Miguel Morales

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Tired it but it wasn't working because of the following conditions: 1. The gl layer has a constant background image. 2. there are additional elements on top of the gl layer such as buttons etc. It wasn't possible to set the static image as a background on the gl layer because the actual 3d content would not render unless I setZOrderOnTop(true) on the gl layer. But if I do that then the additional elements would end up under the gl layer. – Jlam Oct 04 '10 at 16:54

Android GLSurfaceView with drawable background

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