CesiumGS / CesiumGS/cesium

Polylines slice through 3D Tiles rather than draping over them

Open
#7,453 9 comments 0 reactions 0 assignees View on GitHub
category - 3d tiles category - polyline theme - 3D Tiles as Terrain type - bug
Dominant language
JavaScript
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Avg merge
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Merged PRs (30d)
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Description

When clamping a polyline to 3D Tiles it slices through the mesh rather than draping over the topmost surface. This is a limitation of the way ground polylines are rendered.

![image](https://user-images.githubusercontent.com/1494815/50612059-aa895e00-0ea6-11e9-8ee8-55527054d454.png)

Contributor guide

Open the contributing guide

Research direction

Start by investigating the ground polyline rendering path, since the issue identifies it as the source of the limitation. Reproduce the behavior with a polyline clamped to 3D Tiles and compare it with the expected topmost-surface behavior. Done means the polyline drapes over the mesh instead of slicing through it.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
computer-graphics
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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