Ok, let me pack out the context a bit!
I create a passing train, or (using some dramatic license), being in a train carriage compartment when the train in moving effect, by having an array of three spots each with a train carriage window gobo fitted, focussed in three positions across the stage and then creating a chase that steps from one spot to the next sequentially. Believe it or not this is quite effective.
What I have in our next production is a scene with characters in a carriage that is travelling and then stops!
I thought that if I could create a slowing chase and then cross fade into the next cue which would be all three spots live across the stage then this may achieve an acceptable effect of the train being static.
The challenge is the slowing chase.
So, any ideas? I'm open to an alterative approach in anyone has one!
Video's are not an option!