feat: Initial work for MultiCOGLayer: cross-resolution tileset for sentinel/landsat#408
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kylebarron merged 22 commits intomainfrom Apr 10, 2026
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Design for rendering multi-resolution satellite bands (e.g., Sentinel-2 10m/20m/60m) in a single shader pass. Primary tileset drives traversal, secondary tiles are fetched/stitched with UV transforms for GPU-side resampling. No CPU resampling needed. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
6-task plan covering MultiTilesetDescriptor, secondary tile resolver, CompositeBands GPU module, MultiCOGLayer init/fetch/render, and integration smoke test. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
… add Sentinel-2 test - Tech stack: @developmentseed/geotiff (not geotiff.js) - Move multi-tileset files to src/multi-raster-tileset/ directory - Task 6 now uses real Sentinel-2 TileMatrixSet fixture from geozarr Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Introduces MultiTilesetDescriptor, createMultiTilesetDescriptor, selectSecondaryLevel, and tilesetLevelsEqual to support multi-resolution tileset composition for datasets like Sentinel-2 with mixed band resolutions. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Default "closest-finer" prefers the coarsest level that's still finer than the primary, avoiding unnecessary blur. "closest" picks by smallest absolute mpp difference for bandwidth optimization. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Implements resolveSecondaryTiles() which finds which secondary tileset tiles cover a primary tile's CRS extent and computes the [offsetX, offsetY, scaleX, scaleY] UV transform for shader use. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…ution z (zoom/overview level) is the same for all tiles in a resolution, so it belongs on the resolution result, not repeated per tile index. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Creates a factory function that builds a luma.gl shader module composing N named single-band textures into a vec4 output. Each band carries its own UV transform uniform so the GPU handles resolution-alignment automatically. Returns a concrete CompositeBandsModule type so callers need no casts. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Introduces MultiCOGLayer, a CompositeLayer that opens multiple COGs in parallel, builds TilesetDescriptors via TileMatrixSetAdaptor, and groups them into a MultiTilesetDescriptor. Tile fetching and rendering will be added in a subsequent task. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Wire up the full pipeline: - _getTileData: fetches primary + secondary tiles in parallel - _fetchPrimaryBand: direct fetch with identity UV transform - _fetchSecondaryBand: uses fetchTiles + assembleTiles for proper typed-array-preserving stitching (no Uint8Array casts) - _renderSubLayers: CompositeBands module binds all band textures - renderTileLayer: TileLayer with PrimaryTilesetFactory from primary grid Helper functions selectImage and createBandTexture extracted for clarity. Texture format is hardcoded to r8unorm for initial implementation. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Visual example using MultiCOGLayer with individual Sentinel-2 band COGs. Includes presets for true color, false color NIR, SWIR composite, and vegetation — demonstrating cross-resolution rendering (10m + 20m bands). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Sentinel-2 L2A bands are uint16. Infer texture format from the typed array type: Uint8Array -> r8unorm, Uint16Array -> r16unorm. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
WebGL's UNPACK_ALIGNMENT requires each row to start on a 4-byte boundary. For 16-bit single-channel data with odd widths, rows are only 2-byte aligned. Use enforceAlignment (exported from render-pipeline.ts) to pad rows before texture upload. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Major changes: - CompositeBands: rewritten as static ShaderModule with 4 fixed sampler slots, uniform block for scalars (uvTransforms, channelMap), and buildCompositeBandsProps helper for mapping named bands to slots. Follows luma.gl pattern: textures via inject, scalars via fs uniform block + uniformTypes. - LinearRescale: new GPU module for [min,max] -> [0,1] color rescaling, using uniform block pattern for proper uniform binding. - RasterModule type widened to accept uniform values (vectors) alongside textures. - Sentinel-2 example app with true color and false color presets. - enforceAlignment exported from render-pipeline.ts for reuse. - Documentation: gpu-modules.md (luma.gl binding rules), multi-resolution-status.md (current status and known issues). Known issues: multi-resolution alignment (20m bands), tile cache invalidation on preset switch, texture format limited to uint8/uint16. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
GPU modules (CompositeBands, LinearRescale, buildCompositeBandsProps) should only be imported from @developmentseed/deck.gl-raster/gpu-modules, not from the main package entry point. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
kylebarron
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MultiCOGLayer: cross-resolution tileset for sentinel/landsat
This was referenced Apr 10, 2026
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For #142, related to #147
Change list
dev-docsgpu-modules.mdfrom claude's brainstormingCompositeBandsshader module that attempts to render textures across multiple resolutionsLinearRescaleshader module to rescale from a[min, max]range to[0, 1]MultiTilesetDescriptorinterface to manage multiple tilesets across the same extent but with different tile grids with different resolutions.primarydescriptor, which is the highest-resolution source, which defines the tile grid,Future work:
byteLengthnot defined in tile data errors (Fixed in fix: DefinebyteLengthon MultiCOG internal tile data #413)RasterTileLayerindeck.gl-rasterpackage #404