Tracker: WebGPU

deck.gl v10

• WebGL-only and WebGPU endpoint proof of concept: #10504 (draft).

Cross-cutting WebGPU status

Area	Status	Current findings	Tracker action
Native WebGPU aggregation	⬜ Open	GridLayer, HexagonLayer, ScreenGridLayer, and ContourLayer still select CPU aggregation on WebGPU because the shared aggregator requires WebGL-only features. HeatmapLayer already has a native WebGPU GPU-rendering path. See aggregator selection.	Keep open; distinguish the Heatmap implementation from the layers still using CPU fallback.
Picking, hover, and click	✅ Complete	#9733 implements asynchronous WebGPU picking and wires it into hover and pointer-down/click events, including stale-hover protection. See picking-mode selection. Synchronous WebGPU picking and asynchronous deep picking remain unsupported.	Check off; retain the async-only limitations in documentation.
Effects, text features, and extensions	⬜ Open	Shadows and post-processing are incomplete; text backgrounds, collision filtering, and clipping remain WebGL-only; and the WGSL shader-hook list is empty.	Split into focused tasks for shadows/effects, TextLayer follow-ups, and WGSL shader hooks/extensions.
64-bit position handling	🟡 Partial	WGSL projection accepts high/low position pairs, and Float64Array attributes are split into high/low data. Generated and binary coordinate sources still need auditing; Fp64Extension remains WebGL-only.	Keep open; focus on preserving 64-bit inputs where precision is required and add WebGPU precision/binary-input coverage.
WebGL-specific calls	🟡 Partial	The named setGLDeviceParameters() call is gone. Guarded setParametersWebGL() and withParametersWebGL() calls remain in backend-specific layer drawing, while WebGPU uses render-pass and pipeline parameters.	Narrow to removing WebGL calls from backend-neutral core paths; retain adapter-specific code in WebGL-only integrations.
Unsupported normalized attribute formats	⬜ Open	The buffer-layout mapper can still produce scalar unorm8 or unorm8x3 layouts on WebGPU, including three-component colors from colorFormat: 'RGB'.	Keep open; pad or promote unsupported sizes and add WebGPU RGB regression coverage.
Shader-module/project feedback from #9509	🟡 Partial	WGSL layer uniforms, constant-attribute buffers, and shared website device selection have landed. Remaining cleanup includes project-helper naming, the rotation-result/identity-matrix path, retained driver workarounds, and duplicated WGSL uniform declarations. See the current project WGSL.	Replace the generic follow-up with a focused project/WGSL cleanup checklist.
Scatterplot workaround from #9527	✅ Superseded	The Scatterplot-specific manual instance count and per-layer depth parameters are absent after #9432 landed. A separate generalized WebGPU render-pass default remains.	Close this item; track removal of the generalized render-pass default separately if still desired.

deck.gl 9.4

Last verified against GitHub: 2026-08-01.

Status: 🟡 awaiting review · 🟠 author action needed · ✅ landed.

Remaining layer PRs

These are the only WebGPU layer ports that have not landed. All branches were refreshed onto the latest master after TripsLayer landed.

Priority	Layer	PR	Current state / reviewer action
1	TextLayer glyph rendering	#10473	🟡 Ready for review and mergeable. Rebased onto master; fresh CI is running. Glyph rendering is covered; backgrounds, collision filtering, and clipping remain follow-ups.
2	SimpleMeshLayer	#10485	🟡 Ready for review and mergeable. Rebased onto master; fresh CI is running. Includes the merged Tile3D mesh/point-cloud child work from #10517. WebGPU shadows remain separate.
3	TerrainLayer	#10516	🟠 Draft and mergeable, stacked directly on the refreshed SimpleMeshLayer branch. Fresh CI is running; mark ready after the base PR lands and CI passes.

Other open WebGPU work

Feature	PR	Current state
React WebGPU device switching	#10506	🟡 Ready for review and mergeable. Keeps _customRender authoritative and documents the device/canvas lifecycle.
GPU attribute-buffer grouping/interleaving	#10518	🟡 Ready for review.

Recently landed

• GridLayer: #10482
• TripsLayer: #10484
• S2Layer, QuadkeyLayer, and GeohashLayer: #10495
• H3ClusterLayer and H3HexagonLayer: #10496
• A5Layer: #10497
• WebGPU v9.4 release notes, support versions, and badges: #10507

The core rendering base is already merged: #10466, #10113, #10142, #10470, #10471, #10472, #10478, #10483, #10493, and #10494.

Superseded work

• #10450: closed; retained only as a reference for focused ports.
• #9723: closed; superseded by the merged SolidPolygonLayer port #10142.

deck.gl 9.3

• Picking: Add async picking APIs to picking manager @ibgreen https://github.com/visgl/deck.gl/pull/9732
• WebGPU examples must provide pickable: true otherwise instanceColors are not supplied which will invalidate the pipeline execution

deck.gl 9.2

WEBSITE - Make a few layers run under WebGPU

• WEBSITE: Add a device switcher to deck.gl website - @Kaapp
• WEBSITE: Add PointcloudLayer WebGPU Tab- @Kaapp
• WEBSITE: Add ScatterplotLayer WebGPU Tab - @ibgreen
• WEBSITE: Add LineLayer WebGPU Tab? - @Kaapp
• Move deck layers to premultiplied alpha to enable map overlays @Kaapp
• Fix buffer generation for constant attributes under WebGPU @Kaapp
• Replace Textures in deck with AsyncTexture @felixpalmer

deck.gl 9.1: Make a few layers run under WebGPU already in 9.1.x

• Publish unblocking fixes #1 in luma.gl 9.1 (v9.1.4) @ibgreen
• Publish more unblocking fixes in luma.gl 9.1 (TBD) @ibgreen
• Port deck.gl project shader modules to WGSL @ibgreen
• Temporarily fork examples/website/scatterplot to test/apps/webgpu-scatterplot and port shaders to WGSL @ibgreen
• Temporarily fork examples/website/line to test/apps/webgpu-line and port shaders to WGSL @ibgreen
• Update AttributeManager to generate buffers for constant values under WebGPU #9506
• Handle or provide clear errors when unused uniforms in a shader are trimmed resulting in too many uniforms supplied to shader - See https://github.com/visgl/luma.gl/pull/2355
• Handle when vertex attribute binding order results in an error regarding incorrect buffer sizes. - See https://github.com/visgl/luma.gl/pull/2363 & https://github.com/visgl/luma.gl/pull/2364
• Replace all calls to readPixelsWebGL()
• Remove all calls to Model.updateModuleSettings() @felixpalmer

Choose one unchecked tracker row rather than treating this as a single change. Start with the linked entry point for that row, such as aggregation selection in modules/aggregation-layers/src/grid-layer/grid-layer.ts, buffer layouts in modules/core/src/lib/attribute/gl-utils.ts, or project WGSL in modules/core/src/shaderlib/project/project.wgsl.ts. Done means the focused WebGPU task is implemented, covered by the relevant regression tests, and removed from this tracker.