@jigalypuff

this is a standart fixed lightmapping shader, it has nothing to do with second uvset ????


edit:
from beta page:

The second UV skinning data from the MDL7 format is now imported in the engine and used for the D3DVERTEX u2,v2 coordinates. If a model has a second UV set, it is automatically treated as if its second skin were a lightmap (if it has no shader or FFP effect).