Wonky Gimbal Lock in the viewer about 3d-gaussian-splatting HOT 4 CLOSED

Have you tried the "Reset View" button in the viewer side panel, implemented here? This should do the same thing as the "Reset Up Direction" button in Nerfstudio.

Possibly the dataset is just written in an difficult-to-navigate orientation by ns-process-data/COLMAP. When training in Nerfstudio there are some heuristics for re-orienting the dataset when it's loaded (this config value).

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For a little more detail on what seems to be happening in your video: the camera controls library being used here and in the Nerfstudio viewer is camera-controls, which you can play with in isolation here. It follows the convention of orbits happening around a global "up direction".

By default this is the world Z axis visualized in blue in your video. Hitting the "Reset View" button lets you re-assign this to a new direction, which is computed based on your current camera view.

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I will give the reset view button a try in the next few days

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Thanks a million.

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