How can I lerp between two textures but control how much the texture lerps?

[Srivatsa_P1 (Srivatsa_P)]

I have this material that can transition between two colors as in this video

I need to control the transition through blueprints but I don’t want it to go from 0-1, but rather control that range from within blueprints too.

For Example: A player scores a point and a meter fills up only part of the way.

[ClockworkOcean]

These two parameters can already be controlled on a dynamic material instance

WTF Is? A Dynamic Material Instance in Unreal Engine 4