I need help with teeth whitening effect. I used the face mask and texture it with white color. With an alpha only in the mouth area. As you can see in the video it is working fine. Now, the next thing I have to do is use the lips to occlude the excess white texture coming from the face mask. Unfortunately, as you can see in the video its not working as soon as I created the lips mesh. help please!
here is the video link: https://youtu.be/xffD0x7esNw?si=sqdrj6GRmnMKM-PN