Update viewer.js

viewer.js

@@ -273,7 +273,11 @@ export async function initializeViewer(config, instanceId) {
     }
     
     cameraEntity = new pc.Entity('camera');
-    cameraEntity.addComponent('camera', { clearColor: new pc.Color(color_bg) });
+    cameraEntity.addComponent('camera', 
+      { clearColor: new pc.Color(color_bg)},
+      nearClip: 0.01,
+      farClip: 100
+    );
     cameraEntity.setPosition(chosenCameraX, chosenCameraY, chosenCameraZ);
     cameraEntity.lookAt(modelEntity.getPosition());
     cameraEntity.addComponent('script');