No Red, in HL when you fire your weapon, light a torch or make an explosion the "lightmaps" (ie bump maps/normal maps/ specular maps whatever you wanna call them) are what they are, and they are definitely not static lightmaps. They shade differently depending on which lights are on and where they are. But, in many cases you could use this high detail lightmap except that you'd need a special texture space for every polygon and that is completely impractical for games so for that reason too it isnt very useful.