Changing displacement map with controller not working

[tobias_eek]

Hello! Im trying to setup a change in displacement map, from the position of a controller. The controller moves down which makes a value change, which makes it so that another map is visible. A way of animating between maps using controls on my facial rig. (im using the reaction manager)

i recorded and uploaded a demonstration of the problem here: https://www.youtube.com/watch?v=151YIFnABNk

It doesnt work with displacement, at least i cant get it to work. It works with other channels though (diffuse, refl etc). Is this a bug, or just not a supported function?

[tobias_eek]

Hooking the controller up to the displacement amount works though. What doesnt work is to use the controller to change a map which controls the displacement maps like i showed. Where the controller at bottom is opacity 0, and controller moved up is opacity 100. This way animating between maps from the controller

[tobias_eek]

I tired hooking it up with the wire parameter instead, but it just crashes when i try to render. Also, if going back to my main/other way of using the reaction manager, i have to close the reaction manager when i render, or else it just hangs and crashes after a while.

[tobias_eek]

It doesnt work with a custom parameter slider either by the way

[Joelaff]

I didn’t get a chance to look at your video, but could you use a VRayCompTex or a Composite node to add the displacement maps together and animate the blend amount (or blend Matte map)?

[tobias_eek]

Yea, thats what ive done. The problem im having is that when i blend between them (using a controller), nothing happens. If i dont use the controller, and just manually change the values, it works fine