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โTracking a Door
Our hero strides into the room, closing the door behind her. It needs a cool animated 3D effect applied to itโit's really a bank vault door, with spinning lock! Track the door.
๏ท Start with the ground plane set up properly, either from a moving-camera solve or maybe using single-frame alignment.
๏ท Determine the location of the door hinge axis as well, perhaps where the door meets the floor.
๏ท Create a GeoH object with a vertical axis at the hinge location.
๏ท Unlock only that vertical axis.
๏ท Track the door either with image-based geometry tracking (a simple plane), or even just one supervised tracker anywhere on the door.
ยฉ2026 Boris FX, Inc.ย โย UNOFFICIALย โย Converted from original PDF.
