rotate object in open gl without drowing the object again
===

i want to rotate objetc in open GL without drowing again for save time. 
in the init flow i want to drow the picture and then only rotate it acording mouse event. 
i have a problem to do this. 
with out do the full flow: 

     gl.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT);
     gl.LoadIdentity();     
     gl.Rotate(camera_angle_v, 1.0f, 0.0, 0.0);
     gl.Begin(OpenGL.GL_POINTS);
 
     //Drow
 
     gl.End();


now i mast to drow. 
i want to do this without to drowing. 