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Vertical exaggeration broken for Voxel datasets with ELLIPSOID shape #12811

@jjhembd

Description

@jjhembd

What happened?

With an ELLIPSOID-shaped voxel dataset, adjustments to Scene.verticalExaggeration result in the expected stretching of voxel data, but the height bounds of the shape do not change. This results in parts of the exaggerated data being clipped off.

Screen.Recording.2025-08-12.130056.mp4

Reproduction steps

  1. Load this Sandcastle
  2. Adjust the "Exaggeration" slider

Sandcastle example

https://sandcastle.cesium.com/#c=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

Environment

Browser: Chrome
CesiumJS Version: 1.132
Operating System: Windows 11

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