I did put some thought into how the effect system could be extended to allow for cal3d decals (visible scars, cuts, etc) and came up with a couple possibilities (too involved to explain here) to implement this effect.
But, it\'s important to note that such an effect would increase the resource requirements and might not even be worth the slight advance in visual appeal.
Either way, this would be a low priority.
PS, things like dripping blood that don\'t have to \"mold\" or wrap around the player model are already possible.