@Override public void display(GLAutoDrawable gLDrawable) { final GL2 gl = gLDrawable.getGL().getGL2(); gl.glClear(GL.GL_COLOR_BUFFER_BIT); gl.glClear(GL.GL_DEPTH_BUFFER_BIT); gl.glLoadIdentity(); gl.glTranslatef(0.0f, 0.0f, -5.0f); // rotate about the three axes gl.glRotatef(rotateT, 1.0f, 0.0f, 0.0f); gl.glRotatef(rotateT, 0.0f, 1.0f, 0.0f); gl.glRotatef(rotateT, 0.0f, 0.0f, 1.0f); // Draw A Quad gl.glBegin(GL2.GL_QUADS); gl.glColor3f(0.0f, 1.0f, 1.0f); // set the color of the quad gl.glVertex3f(-1.0f, 1.0f, 0.0f); // Top Left gl.glVertex3f(1.0f, 1.0f, 0.0f); // Top Right gl.glVertex3f(1.0f, -1.0f, 0.0f); // Bottom Right gl.glVertex3f(-1.0f, -1.0f, 0.0f); // Bottom Left // Done Drawing The Quad gl.glEnd(); // increasing rotation for the next iteration rotateT += 0.2f; }