This is an experiment mod created using the Topaz Gigapixel program, where I upscaled all the textures in E1M1 and some sprites 6 times. I thought I'd share the results. There has been a version where it has been upscaled 2x, but I wanted to try pushing the limits of the Gigapixel program.
There has already been a full AI upscaling of all Doom 1 / 2 textures, sprites and weapons released. Pretty easy to find on the Doomworld forums.
*sees doomguy HD* AAAAAAUGH YOU SO UGLY!!!