Hello,
In the endor space stage of swtrilgy the reactor walls are dark with the default 3d engine. With -legacy3d things are rendered properly. I tried to attach a save state but it appears to large for the forum software to handle.
ETA: I also have a save state right before the end of darth vader duel, it might be useful according to viewtopic.php?f=3&t=1206&p=15919&hilit=swtrilgy+endor#p15919:
https://www.dropbox.com/s/wyv2urf8xlzrr ... y.st3?dl=0 - duel end
https://www.dropbox.com/s/ilvovdp0pt5id ... y.st4?dl=0 - in the tunnel