开发:增加注释

src/Add-on/Command_ExportGLTF.ts

@@ -45,9 +45,10 @@ export async function ExportGLTF(ens: Entity[])
         //includeCustomExtensions- bool。导出对象属性上定义的自定义 glTF 扩展。默认值为 false。userData.gltfExtensions
     };
 
+    //ref:https://github.com/mrdoob/three.js/blob/master/examples/misc_exporter_gltf.html#L43
     var result = exporter.parse(g, (gltf) =>
     {
-        if (options.binary || gltf instanceof Uint8Array)
+        if (gltf instanceof ArrayBuffer)
             FS.WriteFile(`webcad.glb`, gltf as Uint8Array);
         else
             FS.WriteFile(`webcad.gltf`, JSON.stringify(gltf));