title: What is the fastest way to transfer textures using OpenGL ES 2.0?
body: <p>As Pixel Buffer Objects aren't available in OpenGL ES 2.0, what is the fastest way of transferring textures to the GPU (and back again)? Are there any extensions available for iPad 2 or later that we can use?</p>
  
  <p>Unfortunately I can't use compressed textures as the textures (RGBA8) are generated dynamically in another part of the application.</p>