Okay so I'm 100% new to modding TS2, I just opened SimPE for the very first time and it already looks way too fancy to me. I need to export an object from the base game for conversion to TS3, but I don't know what to look for. What package holds the base game objects and what format are my assets going to be in?
Much of the content you want is here: C:\Program Files (x86)\Origin Games\The Sims 2 Ultimate Collection\Double Deluxe\Base\TSData\Res\Sims3D
Or here if no origin: C:\Program Files (x86)\EA GAMES\The Sims 2\TSData\Res\Sims3D
The mesh is in the GMDC, you can export it in multiple file types. The images you want are in the LIFO. Each game has three different ones, and they are split alphabetically. Example: a-f are in one package 1, g-s are in two, and t-z are in three. Roughly.
The easiest way to gather all resources is to clone using object workshop, and untick all the little boxes.