ohhh i see. thanks for the info everyone. by the way i did an awesome fast animation with poser characters and a bricked floor and it didn't look any flicker. it's just trees and terrains/floors and water. then another time recently i used the baking option in the advanced options, and for some reason i didn't see any flickering in trees. I'm experimenting^_^ i'll tell you guys, if i find my solution thanks