If you want this to happen over time you need to execute the VInterp calculation multiple times, such as on the execution output on a timeline.
Here’s an example of how you might do it. Lerp is similar to VInterp, but the alpha value (in most cases) shouldn’t exceed 1. You can swap the lerp to VInterp and use the execution (without the float value) once you get it working, which may provide a smoother transition.