• Unity
  • Materials duplication when combine skin.

Related Discussions
...

When I combine skin from 2 atlases (A, B), it supposes to be 2 materials in the renderer but I got 6 materials (A, B, A, B, A, B). Is there any way to solve this problem?.

Your draw order seems to requires atlas texture and therefore material switches, see the documentation page here:
spine-unity Runtime Documentation: Material Switching and Draw Calls
Solutions would be to:

  • change draw order and group attachments according to atlas texture

  • group attachments to atlas pages according to draw order

  • pack attachments to as few atlas pages as possible

  • repacking a skin to a new atlas texture at runtime as described here