I've been wondering, how exactly are textures submitted on the Texture Resource? I've heard some people talking about sheets, but what exactly does that mean? Also is there any special format the textures need to be in? Or can they be left how they are in the source game? I don't think what I'm doing would be possible to do with sheets though, as I'm wanting to upload every single texture from Dark Souls 3 and the game has probably 25000 textures (estimate), and I don't want to murder an admin's eyes having to look through them all. Also I'm not sure I can sort that many files, so I'm wondering what to even do with the files at this point. I think it's frankly too big of an order and Q/A on something this size would be near impossible, but I really want to make the textures available to those who want to mod the texture files.
https://wiki.vg-resource.com/wiki/How_To_Submit
Currently only instructions for TSR are available but the process is very similar for TTR.
If you have A LOT of sheets/images to submit, sticking similar ones into ZIPs is usually a good idea. How you split them up and categorize them kind of depends on the game though, so we more or less rely on submitters using common sense. For instance if you have a game with 500 different chairs you can probably safely stick them all in a single "Chairs" ZIP. If you also have 500 tables, couches, and so forth, putting them under a "Furniture" section might be sensible.
If you have a relatively large single texture for a character, or a number of small textures that could be put into a single sheet, then simply submitting that as an image is fine though. Look at a few of the games for examples, you should get the idea.
Images should be in PNG or (unanimated) GIF format. I
highly recommend using PNGs though, there's very little reason to ever use a GIF. Archives must be ZIP.
Oh OK, the thing is, I have no idea what most of the textures even are, and trying to sort that many will be very difficult. Also the extraction process for Dark Souls 3 is very slow due to file encryption and I haven't found a way to extract the files unless they're being loaded by the game. It'd be much faster if I knew how to break the encrypted BDT files, and extract them, but because I don't know how to, I have to use a script that dumps textures being loaded by the game. The advantage of dumping compared to extracting is that they are way easier to sort, so I got that going. I think it'd be best to sort the textures according to the area they appear in as that will save a lot of guesswork.