Torgo said:For F_SKY1 to work the thok barrier as well as the rest of the level has to have the ceiling flat as F_SKY1.
Ashovare said:What are FOFs? (I haven't completed the guide yet.)
Torgo said:You could use FOFs. Depending on the cave you would either need FOFs or not need them. If you wanted to go on top of it or something you would need to use FOFs. If not, you can just use a ceiling flat in most cases.