gistfile1.txt

    // For elevation mode, we need to do some other stuff
    if (startupMapType == MaplyGlobeWithElevation)
    {
        // Tilt, so we can see it
        if (globeViewC)
            [globeViewC setTiltMinHeight:0.001 maxHeight:0.04 minTilt:1.21771169 maxTilt:0.0];
        globeViewC.frameInterval = 2;  // 30fps

        // An elevation source.  This one just makes up sine waves to get some data in there
        elevSource = [[MaplyElevationDatabase alloc] initWithName:@"world_web_mercator"];
        zoomLimit = elevSource.maxZoom;
        requireElev = true;
        baseViewC.elevDelegate = elevSource;
        
        // Don't forget to turn on the z buffer permanently
        [baseViewC setHints:@{kMaplyRenderHintZBuffer: @(YES)}];
        
        // Turn off most of the options for globe mode
        configViewC.allOptions = false;
    }