Feat: Add terrain gluing and offset support to path scheduling

src/runtime-three/runtime-project-scheduler.ts

@@ -72,6 +72,8 @@ export interface RuntimeProjectSchedulePathDefinition {
   loop: boolean;
   curveMode?: ScenePathCurveMode;
   sampledResolution?: number;
+  glueToTerrain?: boolean;
+  terrainOffset?: number;
   points: RuntimeProjectSchedulePathPoint[];
   segments: RuntimeProjectSchedulePathSegment[];
   totalLength: number;

src/runtime-three/runtime-scene-build.ts

@@ -1998,7 +1998,7 @@ export function buildRuntimeSceneFromDocument(
   const modelInstances = enabledModelInstances.map(buildRuntimeModelInstance);
   const paths = getScenePaths(document.paths)
     .filter((path) => path.enabled)
-    .map(buildRuntimePath);
+    .map((path) => buildRuntimePath(path, enabledTerrains));
   const collections = buildRuntimeSceneCollections(
     document,
     options.runtimeClock ?? null,