No shadows?

Recently started mapping for Half-Life 2 again, but I have a problem. When I compile and launch my maps, none of the entities are casting shadows. Props, NPCs, everything - totally shadowless. Can't see any problems at all with the compile, and all the lighting appears to be functioning perfectly. Don't understand it at all. Any ideas?

Post the contents of your compile log and we should be able to help. It may be that you've got a leak, which will remove all your lighting from everything. You'll find your compile log as <mapname>.log in your maps folder.

If you're certain you don't have a leak, then in the case of some entities (NPCs, players, anything dynamic) it could be down to not having a shadow_control entity. Toss one of those in if you haven't already. Also make sure that it uses a POSITIVE pitch in its angles. The source engine isn't very consistent with pitches, as sometimes (light_environment) a negative value points downward, while other times it points up. Something like 80 315 0 would be a good place to start.