Up until 2.8, I was able to disable mipmapping in the preferences (which for some reason, disabled texture filtering), however this option is now unfortunately missing. I understand I can use nodes to create unfiltered renders but I need this for pixel-perfect editing as the models will be exported.
Another issue I have it that textures now longer show up in 'look dev' mode without a material. (previously alt-z).
Until I can fix these, I have to revert to 2.79a. Any help would be very much appreciated.