This was the bane of my existence the past few weeks.
I bashed my skull against my machine for two weeks trying to figure out why Skyboxes wouldn’t work.
Turns out, had to turn GL_CULL_FACES off. After that, code was straight from the video.
One obstacle here was that my MacBook Pro is dying, and I had odd memory issues. So part of this submission was bringing all of my code from OS X and Xcode over to Windows and Visual Studio.
Here’s a video of how awesome it is!