This script will install Hi Resolution Pack for EDuke32: HD graphism.
I see many videos of duke3d being run on pi4's with the hrp pack on youtube but most if not all of them are running directly out of raspian os not emultationstation. GRP file from Duke Nukem 3D game for PC, you can even use the one from the. A lot of the txt in the menus have black boxes around them also. The graphics such as the spinning radioactive symbol on the menu and the bullet casings when they fly out of the pistol have white boxes around them. Polymost kind of works with the hrp override patch 'duke3d_polymost_hrp_override-5.4.674.zip' put in the autoload folder along with the polymer duke3d_hrp.zip. I'm using the newest polymer hi res pack downloaded straight from their website.
Duke3d starts then quits out shortly after changing the video mode to polymer. I edited the install script to build it with polymer but it doesn't work. I've installed eduke32 on the pi through retropie-setup, it runs but only give the option for polymost under video options. I upgraded to a pi4 8gb model running retropie 4.7.1.