How to project textures onto mesh.Usefull for footsteps ,bullets wall marks,explosion trace etc.Any ideas ? :?
You can use a Projector, but that’s a really really bad idea in terms of performance - even one projector can noticeably alter your framerate, and for those purposes you’d need hundreds. So “project” is not the method you’re looking for.
You want to create decals. There are different methods for doing this, including separate objects per decal (which will be about as slow as projectors), or particles (which would only offer an approximation and would look funky). The best method is to create a mesh from scratch, but you’ll need a certain amount of expertise with the mesh API.
As it happens, I’ve created and can license just such a system 
I will definitely be getting this soon.
59$. Pretty steep, for something that does something so seemingly simple!
I just might have to get this one!