OpenGL depth buffer on Android

Question

I\'m currently learning OpenGL ES programming on Android (2.1). I started with the obligatory rotating cube. It\'s rotating fine but I can\'t get the depth buffer to work. T

Answer 1

I was using the GL2JNIView provided in the hello-gl2 sample in NDK r10, and I was also having this issue.

The problem was that when creating the GL2JNIView object, i didn't specify the depth size on the constructor, so that the private class ConfigChooser could find the right EGL configuration.

public GameJNIView(Context context, boolean translucent, int depth, int stencil){...}
public GameJNIView(Context context){...}

myView = new GL2JNIView(this, false, 16, 0);

instead of

myView = new GL2JNIView(this);

Answer 2

Found it myself. It wasn't GL code, it was android code:

view.setEGLConfigChooser(false);

The "false" in this line explicitly says that no Z-Buffer should be allocated. After switching it to "true" it worked perfectly.