How to blend between two materials

So I can confirm, it’s possible to
make a blueprint with a timeline and
setting from it custom primitive data
which can be used directly in the
material.

@AquaFab: Could you explain why you would want to do this as opposed to using a simple dynamic parameter? What am I missing? Could you demonstrate with an example?


I fully understand the appeal (and utilise the functionality) when dealing with 40k hisms asteroids floating about; the instances use the same material but need variance, that extra data is stored on the primitive itself. That makes sense to me, who wants tens of thousands of avoidable draw calls and pushing data forth and back? I was under the impression the long requested perInstanceCustomData was (recently) introduced to do just that. No?