I want to create a block that breaks in my game and falls
through the floor when you step on it. maybe like a cracking effect. I know i could do this with different skins that i could just rotate through to seem like an animation of the block cracking. But the problem with that is that i already have 7 different colored skins that would all need the cracking effect. if i used only 3 animation frames of cracks then i would need 21 separate skins for the effect.

I also thought about using a sprite that i could see through this way the skin on the block could remain the same and i could switch through sprite animations to achieve my effect.
the problem with this is that if i wanted my effect on all sides of the block then i would need to place sprites on all sides.

If you know of another way to do this please let me know. i guess what i was hoping for is some sort of second skin ability that i could set layers with on my model. if not then ill manage with the sprites.

Thanks