Custom layer immediate and draped rendering on globe and terrain #12182
Commits on Jan 24, 2023
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WIP: Custom layer draping support
CustomStyleLayer API extended to support draping with new methods: export type CustomLayerInterface = { ... // misusing MercatorCoordiate's xyz for tile id (x, y, z) where wrap is baked into x. renderToTile: ?(gl: WebGLRenderingContext, tileId: MercatorCoordinate) => void, // return true only for frame when content has changed - otherwise, all the terrain // render cache would be invalidated and redrawn causing huge drop in performance. shouldRerenderTiles: ?() => boolean, } Using WebGL Wind demo code, for simplicity of use, instead of adding submodule, copied dist code. Full code is available at https://github.com/mapbox/webgl-wind/tree/astojilj-draping-support -
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Pass projection and resolve mercatorMatrix during transition
In globe projection, mercator matrix z scale was incorrect, disabling possibility for transition. Transform.mercatorMatrix changed in order to produce the expected mercator matrix, even in globe (zoom 5->6) transition, and then the same compensated in globe to mercator matrix. updated satellites_custom_layer.js to show transition and satellites in mercator projection.
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