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Flickering when picking voxels #11841

@jjhembd

Description

@jjhembd

What happened?

Mouseover picking sometimes jumps or flickers even when the cursor is relatively stable near the middle of a voxel cell.

See this screen recording from @ggetz. Note: so far the bug has only been observed on a Mac.

305446774-5caae909-72a2-4884-9084-9bed692e87a9.mp4

Reproduction steps

  1. Load the below Sandcastle (on a Mac)
  2. Zoom on one corner of the voxel
  3. Move the mouse across adjacent voxels

Sandcastle example

http://localhost:8080/Apps/Sandcastle/index.html#c=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

Environment

Browser:
CesiumJS Version: 1.114, commit ca7a8b8
Operating System: Mac OS

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