LTBL: fix normal / specular mapping if light is in negative y coordinates (relative to window)
LTBL: fix normal / specular mapping if light is in negative y coordinates (relative to window)

Alia5/FSE,Alia5/FSE,Alia5/FSE,Alia5/FSE,Alia5/FSE,Alia5/FSE,Alia5/FSE,Alia5/FSE