So basically, 2048x1230, then? (BTW before Jurassic Park wowed and amazed with its effects, T2’s CGI was, indeed, rendered at 1K, specifically 1280 pixels wide, with one shot during the T-1000’s death scene being fuzzier because it was finalized at half that resolution.)
Well that’s a very different type of effect.
It was probably ~2048x1108 or it may have been anything down to ~1920x1038. The printed resolution is 2048x1556, but they don’t need to print any vertical overscan for CGI VFX. Shrek was rendered at 1828 pixels across, but that’s very different because like Toy Story it’s completely CGI so you’re printing directly to how you want it hence you don’t need to use the full horizontal area available for 2K printing (vertical and/or horizontal overscan).