fix: 优化空格播放和截图角色标签对不上

src/editor/store/directorStore.ts

@@ -1,6 +1,11 @@
 import { create } from "zustand";
 import { MANNEQUIN_POSE_PRESETS } from "../presets/mannequinPosePresets";
-import { GEOMETRY_PRIMITIVE_OPTIONS, normalizeTrajectoryRotation, normalizeTransformRotation } from "../schema/directorProject";
+import {
+  DEFAULT_GROUND_COLOR,
+  GEOMETRY_PRIMITIVE_OPTIONS,
+  normalizeTrajectoryRotation,
+  normalizeTransformRotation,
+} from "../schema/directorProject";
 import type {
   DirectorAssetRef,
   DirectorAssetSource,
@@ -245,8 +250,10 @@ const DEFAULT_SCENE: SceneSettings = {
   panoramaYaw: 0,
   panoramaRadius: 60,
   showLabels: true,
+  captureShowGrid: false,
   snapToGrid: false,
   showGround: true,
+  groundColor: DEFAULT_GROUND_COLOR,
   groundOpacity: 0.4,
   groundHeight: 0,
 };
@@ -477,8 +484,31 @@ function withTimeline(project: DirectorProject): DirectorProject {
   };
 }
 
+/**
+ * 旧工程里还没有「地面颜色」这一项（当时是写死的深灰）：补上默认值，
+ * 否则加载后地面会落到材质默认色（白），和天空色一起看非常刺眼。
+ */
+function withSceneDefaults(project: DirectorProject): DirectorProject {
+  const scene = project.scene;
+  if (!scene) return project;
+
+  const nextScene = { ...scene };
+  if (!(typeof scene.groundColor === "string" && scene.groundColor)) {
+    nextScene.groundColor = DEFAULT_GROUND_COLOR;
+  }
+  // 旧工程没有「导出时是否带网格」这一项：补默认值（false = 导出时藏起网格）
+  if (typeof nextScene.captureShowGrid !== "boolean") {
+    nextScene.captureShowGrid = false;
+  }
+
+  if (nextScene.groundColor === scene.groundColor && nextScene.captureShowGrid === scene.captureShowGrid) {
+    return project;
+  }
+  return { ...project, scene: nextScene };
+}
+
 function migrateDirectorProject(project: DirectorProject): DirectorProject {
-  const withTimelineProject = withTimeline(project);
+  const withTimelineProject = withSceneDefaults(withTimeline(project));
   return {
     ...withTimelineProject,
     objects: withTimelineProject.objects.map((object) => {