Guys,
The question is: how to make things like a car getting dirty while the game is on via C++? Or at least, what are the blueprints possible for that kind of dynamics? Thnx.
I guess what you are looking for is how to apply decals on your surfaces, it is more like adding a new texture onto your current one.
You need to look at blending.
In C++ create a dynamic instance material and you can update the properties.
https://docs.unrealengine.com/latest/INT/Engine/UI/LevelEditor/Modes/MeshPaintMode/VertexColor/MaterialSetup/2Way/
https://wiki.unrealengine.com/Creating_Layered_Materials_(Tutorial)
Thank you ever so much for your promting and help, guys !
I’ll be digging in those directions.