title: FBO depth and stencil render buffer attachments
body: <p>The OpenGL <a href="http://www.opengl.org/wiki/Framebuffer_Object" rel="nofollow">wiki</a> says that in order to use stencil buffer attachment with depth buffer in FBO one needs to create the render buffer with format of the type <code>GL_DEPTH24_STENCIL8</code>, as it seems like GL_STENCIL_INDEXX aren't implemented.</p>
  
  <p>What I don't understand is whether such a buffer is also depth buffer if I set it as <code>GL_DEPTH_STENCIL_ATTACHMENT</code>? Or should I still create separate depth render buffer with formats (GL_DEPTH_COMPONENTXX)?</p>