Wondering what I'm doing wrong with VrayUVWRandomizer

[Mr.Mxyzptlk]

I can see changes made to the diffuse image map in the Slate Material Editor when I make changes to the randomizer. But nothing is changing in my viewport with the material on my object. Just wondering what I'm doing wrong.

[fixeighted]

It just doesn't show in the viewport is all...renders just fine

[Mr.Mxyzptlk]

Thank you. I'm sure it's pretty complex but is there a short answer as to why it doesn't update the viewport?

[^Lele^]

Good question.
The OSL map with similar goals shows the exact result in viewport, so it's doable, in one way or the other.
I am not sure it's efficient to show it, as the OSL map seems to bake the result the first time the viewports get updated after a parameter change.
That's -i assume- in order to then apply the baked randomised bitmap tiling within normal UV space, so to get it displayed in viewports.
However, it's all but quick, even for a small input texture and a small output size (256px / 1024px), so perhaps that may be the reason why it was elected to leave it for rendering.
Will ask.

[Mr.Mxyzptlk]

Thank you Lele. You guys are great at helping us along to better understand this software. Really appreciate you all.