(Posting per Inc's request)
Did a clean install, which defaulted to the GL4 driver. Major abstract art patterns flashing randomly in the background of the login screen, at all resolutions. Switching to Reference GL cleared it.

MacBook Pro (Retina, 15-inch Late 2013)
2.6GHz Intel Core i7
16G 1600MHz DDR3
1TB SSD (320G free space)
NVIDIA GeForce GT 750M 2GB
Intel Iris Pro 1536 MB

Which GPU are you using? I mean, I assume it's the NVIDIA, the game tries to pick whatever is "discrete", but are you over-riding that somehow?

If you could switch to the GL4 driver, exit the game, re-run the game, then exit again, and post the openglinfo.log, that would be helpful.

By the second game-runtime, the log should be entirely from the GL4 driver, I believe, which would be what we want to look at. Although there may be a "opengl4info.log" or something, in which case paste that instead.

Thanks.