CesiumGS / CesiumGS/cesium-native

gltfUpAxis in tileset.json (and probably glTF) is not accounted for when upsampling

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bug
Dominant language
C++
Stars
623
Forks
277
PR merge metrics
No merged PRs in 30d

Description

As a result, upsampled tiles end up rotated 90 degrees.

Contributor guide

Open the contributing guide

Research direction

Start by locating the upsampling path that handles tileset.json and glTF coordinates, then trace how gltfUpAxis is interpreted during the operation. Confirm the current behavior with a case that produces the reported 90-degree rotation; done means upsampled tiles preserve the source coordinate orientation.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
computer-graphics
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
32/100

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