Yesterday I went to the supermarket to buy food, and suddenly a question popped into my mind, so I quickly came to the forum to ask the experts.

When making Patch sliders for blend shapes, why do I see gray tracks when I move the sliders, while the demo in the official documentation doesn’t have any tracks?

I want to ask, how can I remove these tracks?

Thanks to all the pros.

You can use the visibility node on the patch to hide it, before packing it.

william_harley
You can use the visibility node on the patch to hide it, before packing it.

Thanks for your guidance. I've hidden the faces as per the official documentation!

This is the gray trail from the operation, which looks quite ugly, and I want to hide it.

I made a GIF to demonstrate.