How to rotate an object in opengl es 2.0 without moving?

Question

Android

When you rotate the square on the Z axis, it moves slightly to the side and up.
Here is the GLRenderer code:

@Override
    public void onSurfaceCreated (GL10 gl10, EGLConfig eglConfig) {
        GLES20.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);

        square = new Square(100, 100, 100, 100);
    }

    @Override
    public void onDrawFrame (GL10 gl10) {
        // Draw background color
        GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT | GLES20.GL_DEPTH_BUFFER_BIT);

        // Set the camera position (View matrix)
        Matrix.setLookAtM(ViewMatrix, 0, 0f, 0f, 1f, 0f, 0f, 0f, 0f, 1.0f, 0.0f);

        // Calculate the projection and view transformation
        Matrix.multiplyMM(MVPMatrix, 0, ProjectionMatrix, 0, ViewMatrix, 0);

        // Квадрат без поворота
        drawShape(square, MVPMatrix);

        Matrix.setIdentityM(ModelMatrix, 0);
        Matrix.rotateM(ModelMatrix, 0, 10.0f, 0.0f, 0.0f, 1.0f);
        Matrix.multiplyMM(MVPMatrix, 0, MVPMatrix, 0, ModelMatrix, 0);
        // Квадрат с поворотом
        drawShape(square, MVPMatrix);
    }

    @Override
    public void onSurfaceChanged (GL10 gl10, int width, int height) {
        // Adjust the viewport based on geometry changes,
        // such as screen rotation
        GLES20.glViewport(0, 0, width, height);
        Matrix.orthoM(ProjectionMatrix, 0, 0.0f, width, 0.0f, height, 0.0001f, 1.0f);
    }

Answer 1

The fact is that you are rotating about the center of coordinates, but you need to - about the center of the object.

Answer 2

Entii, I understand that. Can you please explain how to rotate around the center of an object?