Another way to do this : In the channel where you want your texture-map : - put a mixer - in source 1 put a T-map - in source 2 put the other T-map - as the blender, use a value When the value is at 0, the first T-map will show and when at 100, the second T-map will be displayed . You will get some blending between the two images with intermediate values, and maybe you don't want that . So you can play with the tweener . A discrete tweener will give an instant change and you can specify when it will happen exactly . i hope it helps, litst