修复更新材质时纹理贴图不显示的问题

src/stores/sceneStore.ts

@@ -99,7 +99,6 @@ const sceneSetup = () => {
     }
 
     async function ChangeTextureFromUrlAsync(url?: string) {
-        console.warn("Update texture from url:", url);
         // 关联贴图
         const db = Material.value.Db;
         // 材质未初始化
@@ -108,11 +107,15 @@ const sceneSetup = () => {
             return;
         }
 
-        const record = new TextureTableRecord();
-        record.Name = db.TextureTable.AllocateName();
-        db.TextureTable.Add(record);
-        // 替换map
-        Material.value.map = record.Id;
+        // 如果url为空，则保留原有材质中的纹理（修改模式），否则重新实例化纹理对象
+        let record = Material.value.map?.Object as TextureTableRecord;
+        if (url) {
+            record = new TextureTableRecord();
+            record.Name = db.TextureTable.AllocateName();
+            db.TextureTable.Add(record);
+            // 替换map
+            Material.value.map = record.Id;
+        }
 
         // 设置Store
         _currTexture.value = record;
@@ -123,6 +126,7 @@ const sceneSetup = () => {
         }
 
         if (!texture.image) {
+            console.warn('Load Image: ', GetConfig().host + '/' + record.imageUrl);
             const img = await LoadImageFromUrl(GetConfig().host + '/' + record.imageUrl);
             texture.image = img;
         }