Picture Car Glossary
motion control rig for picture cars
What is a motion control rig for picture cars?
Updated June 2026 · Revolution Picture Cars
Also called moco, or motion control.
A motion control rig for picture cars is a programmable, robotically actuated camera system that can repeat an identical camera move in terms of path, speed, and timing with absolute precision across multiple takes.
For picture car work, motion control is used when a specific vehicle movement and camera move must be perfectly synchronized, or when a VFX shot requires multiple passes (one with the hero car, one clean, one with lighting variations) that must be perfectly registered in post. Motion control rigs add significant setup time and cost but enable shots impossible to achieve any other way.
Example
A programmed camera move repeats identically across three passes: one with the car, one clean for the plate, one with the effects element. Compositing depends on the passes matching exactly, which a human operator cannot guarantee.
Figures are illustrative, chosen to show the mechanics rather than to quote market rates.
Where you'll see it
Booked with its technicians for effects sequences, usually on a stage.
Common mistake
Using motion control without planning the passes. Its value is identical repeats, and that only pays off if the shot list actually needs a clean plate and an element pass.
Related questions
- What is motion control used for with picture cars?
- Repeating an identical camera move across multiple passes, so a car pass, a clean plate, and an effects element composite together precisely.
- Why not just repeat the move by hand?
- Because a human operator cannot match a move closely enough for compositing. The repeatability is the entire point of the rig.
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