_cube.init(gl);
// Initialize OpenGL state and load all OpenGL resources
gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl.glEnable(GL20.GL_DEPTH_TEST);
gl.glEnable(GL20.GL_CULL_FACE);
// Load the shaders
_program =
createShaderProgram(gl, getSource(VERTEX_SHADER),
getSource(FRAGMENT_SHADER));