-(CCScene*) makeCoinGardenScene { return [[CoinGardenLayer layer] asCCScene]; }

-(CCGLView*) createGLView {

    // Create the view first, since it creates the GL context, which CCDirector expects during init.
    CCGLView* glView = [CCGLView viewWithFrame: self.cc3FrameView.bounds
                                   pixelFormat: kEAGLColorFormatRGB565
                                   depthFormat: GL_DEPTH24_STENCIL8     // Shadow volumes require a stencil
                            preserveBackbuffer: NO
                               numberOfSamples: 4];

    #if CC3_CC2_1
    CCDirector.directorType = kCCDirectorTypeDisplayLink;
    #endif

    CCDirector* director = CCDirector.sharedDirector;
    director.animationInterval = (1.0f / kAnimationFrameRate);
    director.displayStats = YES;
    [director setCcGLView:glView];

    if ([director runningScene]) {
        [director replaceScene: [self makeCoinGardenScene]];
    } else {
        [director runWithScene: [self makeCoinGardenScene]];
    }

    return glView;
}

-(void) initializeScene {
    // Create the camera, place it back a bit, and add it to the scene
    CC3Camera* cam = [CC3Camera nodeWithName: @"Camera"];
    cam.location = cc3v( 0.0, 0.0, 18.0 );
    [self addChild: cam];

//    // Create a light, place it back and to the left at a specific
//    // position (not just directional lighting), and add it to the scene
    CC3Light* lamp = [CC3Light nodeWithName: @"Lamp"];
    lamp.location = cc3v( -2.0, 0.0, 0.0 );
    lamp.isDirectionalOnly = NO;
    [cam addChild: lamp];


    self.opacity = kCCOpacityFull;

    [self createBoundingVolumes];

    [self createGLBuffers];
    [self releaseRedundantContent];

    LogInfo(@"The structure of this scene is: %@", [self structureDescription]);
}

[info] CC3Camera 'Camera':2 
    moving to: (inf, inf, inf) 
    pointing towards: (-0.000, -0.000, -18.000) 
    near clipping distance: 1.000
    far clipping distance: 1000.000 
    to show all of: CoinGardenScene 'CoinGardenScene':1
[***ERROR***] [***GL ERROR***] GL_INVALID_FRAMEBUFFER_OPERATION: Operation not allowed on frame buffer from glPushGroupMarkerEXT(0, CoinGardenLayer on CoinGardenScene 'CoinGardenScene':1). To disable this assertion and just log the GL error, set the preprocessor macro GL_ERROR_ASSERTION_ENABLED=0 in your project build settings.

2016-04-25 12:42:51.863 Coin Garden[29418:3779287] *** Assertion failure in void DoLogGLErrorState(NSString *, ...)(), /Users/vladmiller/Library/cocos3d-2.0.2/cocos3d/cocos3d/OpenGL/CC3OpenGLFoundation.m:105
2016-04-25 12:42:51.881 Coin Garden[29418:3779287] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'See previous logged error.'
*** First throw call stack:
(
    0   CoreFoundation                      0x000000010a8add85 __exceptionPreprocess + 165
    1   libobjc.A.dylib                     0x0000000109e66deb objc_exception_throw + 48
    2   CoreFoundation                      0x000000010a8adbea +[NSException raise:format:arguments:] + 106
    3   Foundation                          0x0000000108d75e1e -[NSAssertionHandler handleFailureInFunction:file:lineNumber:description:] + 169
    4   Coin Garden                         0x000000010694880e DoLogGLErrorState + 942
    5   Coin Garden                         0x0000000106a3aeaa -[CC3OpenGL pushGroupMarkerC:] + 90
    6   Coin Garden                         0x000000010691542a -[CC3LayerRenderCommand invokeOnRenderer:] + 106
    7   Coin Garden                         0x0000000106b89a01 -[CCRenderer flush] + 481
    8   Coin Garden                         0x0000000106a720fb -[CCDirectorIOS drawScene] + 891
    9   Foundation                          0x0000000108ce1242 -[NSObject(NSThreadPerformAdditions) performSelector:onThread:withObject:waitUntilDone:modes:] + 1085
    10  Foundation                          0x0000000108d54054 -[NSObject(NSThreadPerformAdditions) performSelector:onThread:withObject:waitUntilDone:] + 120
    11  Coin Garden                         0x0000000106a7302f -[CCDirectorIOS runWithScene:] + 703
    12  Coin Garden                         0x00000001068c3f4c -[ThreeDViewController createGLView] + 540
    13  Coin Garden                         0x00000001068c3a90 -[ThreeDViewController viewDidLoad] + 112
    ........
)