Industrial Light & Magic's
Go Motion Puppet Mover. External Rods
attached to various points on puppet. Rods moved by stepper motors, which
are programmed by computer. This is done single frame at at time. All this
set-up required for just ONE puppet! Complex and tedious compared to just
animating puppet by hand. (see pic below)
Above, closer photo showing external rods attached to Wings. Entire body also attached to Huge Rig below the puppet (see 1st photo) that moved along a track, and controlled by stepper motors . All this effort in order to obtain Smoother frame to frame incremental Stop Motion movements and it also added motion blurs (camera shutter kept to create blur on film) at key frames of very fast action/movement. Not used in Dragonslayer, there are other old school special effects methods of adding simulated motion blurs such as smearing petroleum jelley on clear glass placed very close to camera lens. The image distortion caused the the petroleum jelley creates a motion blur-like streaked image on the frame.
Today, we have specific Stop Motion software called Frame Grabbers, to preview the frame by frame
puppet movements in order to more consistently achieve smoother animation.
Also, there are now programs that can create & add to the images,
motion blurs. This is digitally done in post production after the completion of the