Sarpedon, the online image gallery has downscaled textures. Cloning the repository with Git is harder but you'll get the original (higher res) images, sorted by Age
sarpedon2 wrote:In regards to retexturing the game, would it yield much difference or must other factors be taken into consideration such as lighting?
Are you talking about retexturing Todelmer to turn it into the daytime version ? That will require a lot more than just textures, since for instance lighting information is baked into the meshes. Otherwise, no, replacing the textures just allows increasing their resolution, there should be no big problem with it (well, aside from repacking them inside the PRPs or loading them at runtime, but this needs further investigation).
sarpedon2 wrote:In fact couldn't AI upscaling be used to create higher resolutions for certain objects?
Oh, definitely. I was mostly talking about reintegrating the original textures instead of the lower-res versions used ingame, but once we figure an easy way to replace the original textures, upscaling and texture packs would be possible too.
Although to be honest, I'm not fond of texture upscaling in general. In my experience, it just interpolates pixels and adds a random noise pattern. Unless you're using a very well trained AI, or a professional tool - and even then, you need to manually check each texture one-by-one to ensure it doesn't look worse than the original.
Still, at least the original images Cyan released have almost no block compression artifacts. That helps a lot with upscaling.