Vector Tiles: Layer order, zIndex, and/or polygon offset
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- Dominant language
- JavaScript
- Stars
- 15.8k
- Forks
- 3.9k
- Avg merge
- 4d 6h
- Merged PRs (30d)
- 34
Description
Feature
Support control over layer order, feature order, and/or polygon offsets. For example, road layer should draw on top of admin layer. Possibly allow a per-feature zIndex styling property in 3D Tile styles. For 3D renderers, useful to control gl.polygonOffset, used to ensure that roads render on top of land/water polygons, for example. For clamped renderers (WIP) implementation of the property would be based on order in GPU Lookup tables I believe, without explicit offsets.
In progress:
- #13515
AI acknowledgment
- I used AI to generate this feature request.
- (If the above is checked) I have reviewed the AI-generated content before submitting.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading the vector-tile feature request and the in-progress issue #13515. Determine which layer or feature ordering and polygon-offset behavior is intended for the 3D and clamped renderers. Done means the supported scope and rendering behavior are defined and implemented with appropriate validation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- computer-graphics
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100