Update viewer.js

viewer.js

@@ -181,10 +181,13 @@ export async function initializeViewer(config, instanceId) {
     app.start();
     progressDialog.style.display = 'none';
 
+    const quat = new pc.Quat();
+    quat.setFromEulerAngles(modelRotationX, modelRotationY, modelRotationZ);
+
     modelEntity = new pc.Entity('model');
     modelEntity.addComponent('gsplat', { asset: assets.sogs });
     modelEntity.setLocalPosition(modelX, modelY, modelZ);
-    modelEntity.setLocalRotation(modelRotationX, modelRotationY, modelRotationZ);
+    modelEntity.setLocalRotation(quat);
     modelEntity.setLocalScale(modelScale, modelScale, modelScale);
     app.root.addChild(modelEntity);