Hi . I’ve only really tested the performance impact of the two methods for desktop, in which case both ISMs and decals had little impact even for units with extremely high movement ranges. I still suspect ISMs should be slightly better, but for desktop it doesn’t really matter. For mobile I would also expect ISMs to be slightly better. However the default ISMs use transparent materials, which is not ideal for mobile. I can’t test it now, since I’m still on vacation, so I suggest you run a simple test using decals and ISMs with and without transparent materials and see if there is a difference in fps.