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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Jurassic Park’s Dinosaur Input Device (DID) let stop-motion animators shape performances for computer-generated dinosaurs by posing and moving a physical armature. It was a practical bridge between the animators’ hands-on craft and digital character animation—not a machine that automatically made finished CGI lifelike.
What was the Dinosaur Input Device?
The Dinosaur Input Device, also called the Digital Input Device, was a stop-motion-capture system developed for Jurassic Park. A technical paper describes it as a way for experienced stop-motion animators to animate computer-graphics characters. Tippett Studio similarly explains that animators created digital dinosaur performances by manipulating physical armatures. (Technical paper; Tippett Studio)
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How the armature-to-CG workflow worked
- An animator posed and moved a physical, dinosaur-shaped armature.
- The DID captured that movement as input for a computer-generated character.
- The resulting input gave the CG animation team a performance shaped by an animator’s physical choices.
The available descriptions establish that high-level workflow, but not details such as sensor count, sampling rate, software, or the precise steps used to apply the captured motion to a digital character.
Why did Jurassic Park need a bridge between stop-motion and CGI?
The production initially leaned toward go-motion, a form of stop-motion puppet animation developed at ILM by Phil Tippett. During production, Dennis Muren showed that ILM’s CGI research-and-development artists had created tests of photorealistic digital dinosaurs. Those tests shifted the film toward digital creatures, while leaving an important role for Tippett and other stop-motion animators: developing movement and performance. (Amblin; ILM)
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The need was not simply to transfer an old technique unchanged. The production needed a way for animators experienced in physical puppets and stop-motion performance to contribute to a CG pipeline. The DID addressed that handoff by making physical manipulation a source of animation input.
Who developed the DID?
The device’s development is described as collaborative, not the work of a single inventor. ILM credits Phil Tippett, Randal Dutra, Tom St. Amand, and the Tippett Studio team in connection with the DID. Tippett Studio credits Craig Hayes with leading the efforts that resulted in the device. These accounts describe complementary parts of the collaboration rather than mutually exclusive claims. (ILM; Tippett Studio)
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the device did—and what it does not prove
The DID matters because it connected stop-motion performance skills with CG animation at a moment when the production was changing direction. The Academy describes Jurassic Park as a film that bridged stop-motion photography and CG animation in motion pictures; it won the Visual Effects Oscar for 1993. That broader milestone does not mean the DID alone caused the transition or was used for every dinosaur effect. (Academy of Motion Picture Arts and Sciences)
- It was an input bridge: an animator manipulated a physical armature, and the device captured movement for a CG character.
- It was part of a wider production shift: digital dinosaur tests redirected the production from its initial go-motion emphasis.
- It was not the whole animation pipeline: the available accounts do not establish that it handled every CG shot or mechanically converted finished stop-motion footage into final animation.
- Its exact technical specifications are not established here: no sensor count, performance statistics, or DID-specific shot totals are supported by the cited accounts.
Why the DID remains significant
The DID is a useful example of how a new digital technique can make room for existing craft rather than simply replace it. Jurassic Park moved toward CG dinosaurs, but the production could still draw on animators’ understanding of weight, timing, and physical performance by giving them an armature-based way to contribute movement. The device’s significance lies in that connection—not in a claim that hardware alone made digital creatures convincing.
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