Attach and Detach
Detach is the operation to use when you have a mesh and want to
separate parts of it into two distinct meshes.
Remember, every time you detach a piece of the mesh, each piece
will be an independent mesh that can have different properties, tex-
tures, and so on.
Attach is a very useful operation that allows you to join two dif-
ferent meshes and merge them as one. If you are modeling a full
human body, you may want to model the head, the limbs, and the
torso separately and then merge them into one single mesh. After
the attach operation, all the parts of the human body you’ve mod-
eled will be treated as one for any further operations you may apply.
However, they do not necessarily have to share the same texture.
You can merge two meshes and preserve the texture coordinates,
shaders, and textures applied to each one.
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Chapter 2 – Polygon Operations
Figure 2-20: Detaching.
Figure 2-21: An attached mesh without merged vertices. After smoothing is
applied, the meshes continue, disconnected from each other.
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