How to Lerp betwen 2 textures using light vector similar to UDK

Development Asset Creation
1

So yeah any workaround on how to lerp between 2 textures using the light vector.Basically I just want diffeent textures on the light and shadow areas of an object.

In UDK before,custom lighting can be used for this as in this video UDK - How to Lerp Textures Using Light Direction - YouTube,
any alternatives on how to do that in UE4?

2

Hi!

Read this thread

3

Hmm looks like doing it that way for every object via materials and BP to track light vector is performance heavy?

How bout post processes?Is it possible to just limit a post process effect on the shadowed areas of everything on the scene?sort of mask out the effect on areas hit by the light