Sorry @LittleStain. I'll try to not bump again.
Due to your answer I am thinking about if it's a mistake use Paster plugin only to achieve a light system. A brilliant light effect is what I'm trying to achieve. Simply, a TV shining in the dark, but if you walk in front of the Tv, the light remains behind the player. Am I explaining well?
My reason for Paster is that in the game, lights will be lightning the room where you are and the walls behind player, but not the background such as sky or mountains.
I am thinking this is impossible even if you are using a traditional light system, this is:
Layer 0: -
Layer 1 : Light
Layer 2: Darkness
Layer 3: Player
When you want player walk above the light, you have to move Player lo layer 0, but whit this, Player will be lighted with no darkness.