feat: add native center line style overrides

blender/generate_scene.py

@@ -663,6 +663,8 @@ def build(args):
         layer["id"]: material_from_spec(spec)
         for layer, spec in zip(catalog.ROAD_LAYERS, catalog.road_material_specs())
     }
+    road_mats["native_center_line_white"] = material_from_spec(
+        catalog.MATERIALS["native_center_line_white"])
     traffic_signal_mats = {
         "metal": material_from_spec(catalog.MATERIALS["traffic_signal_metal"]),
         "housing": material_from_spec(catalog.MATERIALS["traffic_signal_housing"]),
@@ -801,9 +803,19 @@ def build(args):
             source_path = os.path.join(native_road_dir, "layers", source["source"] + ".geojson")
             if not os.path.isfile(source_path):
                 raise RuntimeError("Native road layer is missing: " + source_path)
-            count = _roads.assemble_geojson_layer(
-                source_path, source["source"], projector, roads_c,
-                road_mats[target], layer["z"])
+            if source["source"] == "center_lines":
+                count = _roads.assemble_geojson_layer(
+                    source_path, source["source"], projector, roads_c,
+                    road_mats[target], layer["z"],
+                    lambda props: props.get("color") != "white")
+                count += _roads.assemble_geojson_layer(
+                    source_path, source["source"] + "_white", projector, roads_c,
+                    road_mats["native_center_line_white"], layer["z"],
+                    lambda props: props.get("color") == "white")
+            else:
+                count = _roads.assemble_geojson_layer(
+                    source_path, source["source"], projector, roads_c,
+                    road_mats[target], layer["z"])
             road_counts[source["source"]] = count
     elif geojson_dir and os.path.isdir(geojson_dir):
         for problem in catalog.check_layers(geojson_dir):

blender/osmassets/catalog.py

@@ -200,7 +200,10 @@ MATERIALS = {
     "traffic_signal_active_green": {"kind": "solid", "name": "Traffic Signal Active Green",
                                      "color": (0.04, 0.82, 0.22), "roughness": 0.25,
                                      "cesium": {"base_color": (0.04, 0.82, 0.22),
-                                                "emission": ((0.04, 0.82, 0.22), 1.0)}},
+                                                 "emission": ((0.04, 0.82, 0.22), 1.0)}},
+    "native_center_line_white": {"kind": "solid", "name": "Native Center Line White",
+                                   "color": (0.95, 0.94, 0.82), "roughness": 0.52,
+                                   "cesium": {"base_color": (0.95, 0.94, 0.82)}},
 }
 
 

blender/osmassets/roads.py

@@ -7,7 +7,8 @@ from osmassets.geom import clip_polygon, feature_in_bounds, geometry_rings
 from osmassets.mesh import MeshBatch, add_polyline
 
 
-def assemble_geojson_layer(path, layer_id, projector, collection, material, z):
+def assemble_geojson_layer(path, layer_id, projector, collection, material, z,
+                           property_filter=None):
     if not os.path.exists(path):
         return 0
     with open(path, "r", encoding="utf-8") as handle:
@@ -18,6 +19,8 @@ def assemble_geojson_layer(path, layer_id, projector, collection, material, z):
     xmax, ymax = projector.xy((b["max_lon"], b["max_lat"]))
     count = 0
     for feature in data.get("features", []):
+        if property_filter and not property_filter(feature.get("properties", {})):
+            continue
         if not feature_in_bounds(feature, projector):
             continue
         for ring in geometry_rings(feature.get("geometry")):