Cannot reproduce wind visualisation Raster MTS example

[jimjam-slam]

We are looking to use the Raster MTS to serve NetCDFs, but we've struggled with our uploaded Tilesets reporting sum_area: 0 and not having any data when we open them in Mapbox Studio. Eventually, we tried to reproduce the wind visualisation example exactly, but even this appears to have this problem.

I've downloaded the NetCDF supplied on the page as gfs-wind.nc. Here's the recipe, as specified on the example page (I've substituted in our account name and the source name), saved as recipe-gfs.json:

{
  "version": 1,
  "type": "rasterarray",
  "sources": [
    {
      "uri": "mapbox://tileset-source/example-org/gfs-wind"
    }
  ],
  "minzoom": 0,
  "maxzoom": 3,
  "layers": {
    "10winds": {
      "tilesize": 256,
      "resampling": "bilinear",
      "buffer": 1,
      "source_rules": {
        "filter":
        [
		      ["all",["==",["get","NETCDF_VARNAME"],"u-component_of_wind_height_above_ground"],
        	["==",["get","NETCDF_DIM_height_above_ground2"],"10"]],
        	["all",["==",["get","NETCDF_VARNAME"],"v-component_of_wind_height_above_ground"],
        	["==",["get","NETCDF_DIM_height_above_ground2"],"10"]]
				],
        "name": ["to-number", ["get", "NETCDF_DIM_time"]],
				"sort_key":["to-number",["get","NETCDF_DIM_time"]],
        "order": "asc"
			}
    }
  }
}

Then I've run:

tilesets upload-raster-source example-org gfs-wind ./gfs-wind.nc
tilesets create example-org.tiles-gfs-wind --recipe recipe-gfs.json --name "Test - GFS wind"
tilesets publish example-org.tiles-gfs-wind

When I run tilesets job, I get output that includes:

"layer_stats": {
    "10winds": {
      "minzoom": 0,
      "maxzoom": 3,
      "zooms": {
        "0": {
          "sum_area": 0
        }
      }
    }
  },

And in Mapbox Studio link supplied by tilesets job we see the following:

[jqtrde]

@jimjam-slam, we'll take a look - appreciate you cutting an issue here!

[pratikyadav]

👋 @jimjam-slam Mapbox Studio currently doesn't render particle animation. The pink color layer and bounds in your screenshot make me believe the tileset is processed. If you can try using the code snippet in https://docs.mapbox.com/mapbox-tiling-service/examples/raster-mts-wind/#add-tileset-to-map with your tileset and a valid token, you might see the wind particles.