CesiumGS

CesiumGS/cesium

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

27 good first / help-wanted issues · JavaScript · last activity Jul 2, 2026

15.4K stars 3.8K forks 15.4K watchers JavaScript Apache License 2.0
3d 3d-globe 3d-tiles cesium czml geospatial gis gltf webgl
27 Open Issues Need Help Last updated: Jul 2, 2026

Open Issues Need Help

View All on GitHub
category - doc good first issue onramping FCF
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - cleanup good first issue category - graphics
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
good first issue FCF
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - bug good first issue onramping
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - bug category - doc good first issue FCF
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - bug good first issue
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - bug good first issue category - clustering FCF
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - bug good first issue needs feedback
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
category - doc good first issue category - terrain and imagery FCF
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - cleanup category - doc good first issue FCF
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - bug good first issue onramping category - terrain and imagery FCF
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - bug good first issue category - voxels FCF
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - enhancement good first issue FCF
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - bug good first issue onramping FCF
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - bug category - doc good first issue needs triage FCF
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - cleanup category - doc good first issue category - polygons/geometry
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - bug good first issue onramping
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - enhancement good first issue category - camera
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - enhancement type - cleanup good first issue JTC
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - bug good first issue category - architecture / api category - voxels
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - bug good first issue
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - bug good first issue
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl
type - bug good first issue onramping category - graphics
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl

AI Summary: The task involves correcting the documentation for the CesiumJS library. Specifically, the return types for the `Scene.clampToHeight`, `Scene.clampToHeightMostDetailed`, and `Scene.sampleHeight` methods need to be updated to accurately reflect that they can return `undefined`, not just `Cartesian3`. This requires modifying the documentation to include `Cartesian3 | undefined` as the return type and potentially updating the TypeScript definitions.

Complexity: 2/5
type - bug category - doc good first issue category - typescript needs triage
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl

AI Summary: Update the CesiumJS documentation for the `ClippingPolygonCollection` class to include the missing `inverse` and `enabled` properties, ensuring consistency with the existing code and improving TypeScript compatibility. This involves adding descriptions of these properties to the official documentation page.

Complexity: 2/5
type - bug category - doc good first issue category - typescript
CesiumGS/cesium
15.4K

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

JavaScript
#3d#3d-globe#3d-tiles#cesium#czml#geospatial#gis#gltf#webgl