Specular maps wouldn't be of any use in pureLIGHT itself. Specular lighting is view angle dependent, so it can't really be precalculated into a lightmap. You can still use them on lightmapped content inside of Torque 3D to add detail to your specular lighting.
As for bump maps, currently Torque 3D doesn't have the necessary support built into it to combine a bump map and a lightmap together. The bump maps will still apply to your specular lighting and any dynamic lights you have.
Torque 3D Owner Thomas Pittman
As for bump maps, currently Torque 3D doesn't have the necessary support built into it to combine a bump map and a lightmap together. The bump maps will still apply to your specular lighting and any dynamic lights you have.