vantagekit (Python)

Camera and input controls for viewers of terrain, ocean and vessel scenes. This package is the Python half of vantagekit, whose JavaScript modules give three.js and MapLibre GL JS viewers the same navigation in the browser (live demo).

pip install vantagekit

vantagekit.core

Standard library only, so it runs anywhere Python 3.10 or later does: in tests, in tools, or in a viewer built on any renderer.

• Stage frames for Y-up and Z-up scenes in any unit (UpFrame), with headings and yaw from orientations.
• Camera math for orbit, chase and point-of-view cameras around a moving target (orbit_eye, look_at_matrix). Every distance is in meters and every time constant in seconds.
• Smoothing that does not depend on frame rate (Smoothed3, SmoothedAngle, exp_alpha): the filter is solved exactly for a target moving steadily between frames, so the lag behind a moving target is its speed times the time constant at any frame time.
• Bindings as data (Binding, DEFAULT_BINDINGS): press, hold, axis and delta kinds, exact modifiers, and ordered layers, so an app layer can take the sticks from the camera while it is on.
• Target selection (CallbackTargets, Pose).

from vantagekit.core import SmoothedAngle, UpFrame, orbit_eye

vantagekit.kit

Adapters for Omniverse Kit 109 and 110 (Isaac Sim 6): a camera rig with free, chase, point-of-view and orbit modes, a handover to Kit's own navigation, a keyboard, mouse and gamepad input router, and a view badge. These import carb and omni and so work only inside Kit. A Kit app usually loads them as the lhzn.vantagekit extension from the repository's kit/exts folder; see the main README.

Versions

The package version follows the repository's release tags, so vantagekit==0.8.0 matches the JavaScript modules served from @v0.8.0. MIT license, Long Horizon Observatory.