In this lecture, I will show you how we can make the mouth to subtracted permanently. As it is in a previous lecture, we can preview our Boolean and subsection that we want to make it permanently. To do that we only need the matches what will be in this operation. So in this case, the mouth and the handshake to solo out these two, we need to hold down the Shift and click on the i button in the sub domain and now everything on visible now turn on the i button to the mouth and to the head shape. Now only these two meshes are visible. Turn on the light bullying and under the subdomain We have a Boolean menu, and here click on the make Boolean mesh when the operation is done here on the top of the tool menu, we have a brand new mesh, but with the subtracted geometry and that is not just a preview, it is the actual geometry.

Now if we go back to our costume head, we can turn off the mouth and the head shape and turn on the other shapes. And we the insert here on the top we have the two what we did right now with the Boolean and here we go.