Forum Discussion
OpenGL : retrieving the framebuffer of an attached window
Hi, As I mentioned in the midst of another topic, I would like to know if and how it is possible to retrieve the framebuffer's content currently displayed in the Rift at every frame (e.g. using glR...
"lamour42" wrote:
Another question: Is there some place where you discuss the pros and cons of the hybrid OpenGL/DirectX approach of your (excellent!) example
Not really. I produced the example because at the time Direct mode didn't work at all with OpenGL. This meant that many developers who were working in OpenGL were essentially cut-off from working with the Rift, or else were forced to tell their users they had to switch to extended mode.
So the main 'pro' of my hybrid approach was that it gave developers a means to work with the Rift in existing OpenGL based software and still support Direct mode. The main 'con' was that being an nVidia extension, I had/have no idea how pervasive it is on non-nVidia cards. Also, if a developer was previously working with only OpenGL, which approach would force them to use the Direct3D API and link against the D3D libraries, potentially introducing new, unwanted dependencies.