Apply advanced shadow rendering flags to road surfaces

src/viewport-three/viewport-host.ts

@@ -2670,6 +2670,13 @@ export class ViewportHost {
       );
     }
 
+    for (const renderObjects of this.roadSurfaceRenderObjects.values()) {
+      applyAdvancedRenderingRenderableShadowFlags(
+        renderObjects.mesh,
+        shadowsEnabled
+      );
+    }
+
     for (const renderObjects of this.entityRenderObjects.values()) {
       applyAdvancedRenderingRenderableShadowFlags(renderObjects.group, false);
     }