OpenGL ES例子

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        GLSurfaceView view = new GLSurfaceView(this);
        view.setRenderer(new OpenGLRenderer());
        setContentView(view);
    }

    class OpenGLRenderer implements GLSurfaceView.Renderer {
        private Cube mCube = new Cube();
        private float mCubeRotation;

        @Override
        public void onSurfaceCreated(GL10 gl, EGLConfig config) {
            gl.glClearColor(0.0f, 0.0f, 0.0f, 0.5f);
            gl.glClearDepthf(1.0f);
            gl.glEnable(GL10.GL_DEPTH_TEST);
            gl.glDepthFunc(GL10.GL_LEQUAL);
            gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT,
                    GL10.GL_NICEST);
        }

        @Override
        public void onDrawFrame(GL10 gl) {
            gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
            gl.glLoadIdentity();
            gl.glTranslatef(0.0f, 0.0f, -10.0f);
            gl.glRotatef(mCubeRotation, 1.0f, 1.0f, 1.0f);
            mCube.draw(gl);
            gl.glLoadIdentity();
            mCubeRotation -= 0.15f;
        }

        @Override
        public void onSurfaceChanged(GL10 gl, int width, int height) {
            gl.glViewport(0, 0, width, height);
            gl.glMatrixMode(GL10.GL_PROJECTION);
            gl.glLoadIdentity();
            GLU.gluPerspective(gl, 45.0f, (float) width / (float) height, 0.1f, 100.0f);
            gl.glViewport(0, 0, width, height);
            gl.glMatrixMode(GL10.GL_MODELVIEW);
            gl.glLoadIdentity();
        }
    }

    class Cube {
        private FloatBuffer mVertexBuffer;
        private FloatBuffer mColorBuffer;
        private ByteBuffer mIndexBuffer;
        private float vertices[] = {
                -1.0f, -1.0f, -1.0f,
                1.0f, -1.0f, -1.0f,
                1.0f, 1.0f, -1.0f,
                -1.0f, 1.0f, -1.0f,
                -1.0f, -1.0f, 1.0f,
                1.0f, -1.0f, 1.0f,
                1.0f, 1.0f, 1.0f,
                -1.0f, 1.0f, 1.0f
        };
        private float colors[] = {
                0.0f, 1.0f, 0.0f, 1.0f,
                0.0f, 1.0f, 0.0f, 1.0f,
                1.0f, 0.5f, 0.0f, 1.0f,
                1.0f, 0.5f, 0.0f, 1.0f,
                1.0f, 0.0f, 0.0f, 1.0f,
                1.0f, 0.0f, 0.0f, 1.0f,
                0.0f, 0.0f, 1.0f, 1.0f,
                1.0f, 0.0f, 1.0f, 1.0f
        };
        private byte indices[] = {
                0, 4, 5, 0, 5, 1,
                1, 5, 6, 1, 6, 2,
                2, 6, 7, 2, 7, 3,
                3, 7, 4, 3, 4, 0,
                4, 7, 6, 4, 6, 5,
                3, 0, 1, 3, 1, 2
        };

        public Cube() {
            ByteBuffer byteBuf = ByteBuffer.allocateDirect(vertices.length * 4);
            byteBuf.order(ByteOrder.nativeOrder());
            mVertexBuffer = byteBuf.asFloatBuffer();
            mVertexBuffer.put(vertices);
            mVertexBuffer.position(0);
            byteBuf = ByteBuffer.allocateDirect(colors.length * 4);
            byteBuf.order(ByteOrder.nativeOrder());
            mColorBuffer = byteBuf.asFloatBuffer();
            mColorBuffer.put(colors);
            mColorBuffer.position(0);
            mIndexBuffer = ByteBuffer.allocateDirect(indices.length);
            mIndexBuffer.put(indices);
            mIndexBuffer.position(0);
        }

        public void draw(GL10 gl) {
            gl.glFrontFace(GL10.GL_CW);
            gl.glVertexPointer(3, GL10.GL_FLOAT, 0, mVertexBuffer);
            gl.glColorPointer(4, GL10.GL_FLOAT, 0, mColorBuffer);
            gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
            gl.glEnableClientState(GL10.GL_COLOR_ARRAY);
            gl.glDrawElements(GL10.GL_TRIANGLES, 36, GL10.GL_UNSIGNED_BYTE,
                    mIndexBuffer);
            gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
            gl.glDisableClientState(GL10.GL_COLOR_ARRAY);
        }
    }