Getting a custom decal entity to work

[Homicide13]

I actually figured it out: it's because in the material editor I needed to set it to "alpha" instead of "blend," something I did before but forgot to do again.

As for the entity, Your Computer's advice worked (though honestly I still don't know exactly how it works, I just know what to do to make it work T_T), so the problem is solved!

As for making a custom decal: I'll write a tutorial and post it in a separate thread.