Implementing more compatible texture replacement.
It's finally released to the public for real! This mod ports Sonic's model and animations from SA2 into SADX, and also replaces Super Sonic and Metal Sonic with their SA2 counterparts. Additionally, the mod features options to use Shadow or Amy instead of Sonic. Unfortunately, the mod is not yet finished, there are several missing animations, picking up objects is completely broken, Sonic's spines don't jiggle, and the character select and cutscenes still use the SADX model.
Feel free to use this mod as a base for other models, simply use ModelRelabeler to replace the files in the system\sonicmdl folder like you would in SA2. Note that the DLL and all the model/animation files must be together in a single mod, it can't read files from other mods.
If you would like to help with the animation set, check out the animation map files in the root folder on GitHub, and compare Sonic's animation lists in SADX and SA2 to find the best match. Not all SADX animations have an SA2 equivalent however, so some animations will need to be custom made.