i have been trying something with no results and after searching the web i could not find a solution, i don´t even know if it´s possible to achieve what i am trying to accomplish. I have one material that i use in several objects and i have a second material png image result of a shadow bake(each object has a different shadow material but they all share the same background material). I would like to use the 2 materials in one object using the shadow on top of the background layer so i can export as a GLB. Can anyone please help me? I know u can assign a material to a specific face or faces of the mesh but it does not work with transparency.