jcjimher wrote: I don't think a simple 4K mode would add anything to the cost of development. In fact I fully expect the PC version to be playable at 4k and other resolutions.
A different thing would be adding additional effects or producing higher-quality textures and models. I don't think they'll do that.
I personally would really like if they supported HDR with the game. I have no idea if it adds to the development costs or not, but HDR seems like the kind of improvement that fits a game like Shenmue, where ambience and beauty is so important. And is the kind of innovative technology that Yu Suzuki has always liked to push...
I agree. Typically with games you have a base "internal" resolution which, if copied for the displayed resolution, will look the best. Downscaling (along with some form of filtering) is necessary to display lower resolutions, and of course upscaling is needed for higher resolutions. With enough upscaling you get noticeable "aliasing" on texture edges. If the internal resolution for Shenmue III is high enough (it should be at least 2560x1440 on PC), then there won't be any issues besides a tiny amount of blurriness for sub-4K players.
You can mitigate aliasing with the post-processing effect, anti-aliasing, but you lose some crispness in the image since you're basically padding on extra pixels to sharp edges.
I doubt anyone needed that explanation, but I felt like typing it up anyway.