Quote: --- Original message by: sierra117
The tutorial is contradicting meh :(
the HEK's explanation works fine with simple ones but just to try and be helpful
create the faces on your level then detach them all and rename them to the same group e.g., "base portals"... link to frame. apply the +exactportal material, use any diffuse you like it doesn't matter.
apply +portal to your terrain portals and detach like before, rename and link.
your bsp should have all your other materials on it.
all of these should be used within one multi/sub. don't use multiple ones like the HEK says. it's stupid.