Decal Dynamic Material Instance ? Not work

I created this blueprint https://dl.dropboxusercontent.com/u/28070491/UE/DecalProblem.jpg , the idea is change the color and the texture at decal creation, if i put a decal in the map with this texture and change manual the values of the “Material Parameter Collection” works fine but if make that in this blueprint, the decal spawn with the default values of the decal/texture.

Hey Hgdavidy -

You are using the incorrect Set Scalar and Vector Parameter nodes. If your variable is in a MPC, then you will want to use the Set Scalar and Vector parameter nodes where you have to directly reference your Collection Parameter. If you are using the library or have turned off context sensitivity it would be the second items when you are run a search for “Set Scalar Parameter” or “Set Vector Parameter”

Thank You

Eric Ketchum

Hi there, how could I randomize decal properties per individual decal? I thought of getting values generated out in the world to drive material parameters, how can I do this without altering all the decals which use the same material at once?

Do I have to make dynamic material instances for every decal currently present in the world and each must have its own collection parameter? Is there an easier way, perhaps less heavy on performance?

Hi Polivantage -

Can you post this as a new question in Rendering?

Thank You

Eric Ketchum