Custom view transition in OpenGL ES

Question

I\'m trying to create a custom transition, to serve as a replacement for a default transition you would get here, for example:

[self.navigationController pushVie         


        

Answer 1

I think the function you might be thinking of is http://www.opengl.org/sdk/docs/man/xhtml/glCopyTexImage2D.xml ... you set the viewport to the texture size and then draw as usual, then do glCopyTexImage2D to copy the scene onto a texture.

or you should look into FrameBuffer Objects. The default OpenGL template in XCode uses these. Just generate the example project to see how those work.