How to avoid flickering when switching images as rectangular materials

Hi @chen21439 ,

Thanks for your post.

I think the delay is caused by the new texturing being created. I believe this forums thread and linked issue discuss a similar problem Globe material flickers when updating - #4 by rlueders

A workaround may be possible. Can you tell us a little more about your use case how you are using rectangular materials with images loaded from an external source?

Thanks,
Luke