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Eyes and masking
My current setup for eyes is:
- I have slots for Eyelashes, makeup, eye shape, pupil, and eyeball, sorted in that order. These are not meshes, so just regular slots with images.
- Eyelashes, makeup, and eye shape are skins, so they can be customized.
- Eyes have expressions, such as wide open and closed. Eyelashes and makeup slots has attachments for each expression.
This means that for each eye shape and expression I need new images for eyelashes and makeup that match the eye shape. So images are growing exponentially for each eye shape I'm adding as all skins/customizable parts around the eye need new images.
So I have two questions about this:
1. The reason I need to layer it this way is so that the eyeballs and iris are covered by the eye shape, and makeup need to be transparent where the eyeball should be showing. Ideally, I would just have a mask for each eyeshape and the makeup would be masked out where needed. As I understand it there is no bitmap masking, but there is polygon masking but it's very expensive at runtime (Using Unity for runtime). Am I correct and there wouldn't really be any good way to instead use a mask
2. It also means that animating expressions is a bit tedious. To change to a "Closed eye" expression one would need to go into each eye and change attachment for eye shape, eyelash, and makeup. Are there any shortcuts to this? Very specific naming and use search could be a good one - but ideally, one would prefer a single click in terms of a macro or possible scripting for the editor and creating your own functions.
Hopefully, I explained it clearly enough and I do realize it's an edge case. Any suggestions are appreciated!
Thank you for illustrating your issue so clearly!
If I encountered such a case, I would use meshes. I understand that the eyelashes are difficult to deform nicely to the shape of the eyes, so it would be good to prepare images for each expression, but I think it would be easier to animate the eyelid skin and makeup using meshes. Even when using skins, the same meshes and weights can be reused by using linked meshes, which is easier to manage. For more information on linked meshes, please see the Spine User Guide:
Mesh attachments - Spine User Guide: Linked meshes
Regarding the performance issue of clipping attachments, you are right. Using clipping attachments can be a very expensive operation and must be used with care. However, how much cost is acceptable in your game is not sure until you try it. If it is tested and there are no problems, you can use them.
Are there any shortcuts to this? Very specific naming and use search could be a good one - but ideally, one would prefer a single click in terms of a macro or possible scripting for the editor and creating your own functions.
Unfortunately, there is no such functionality as a shortcut for batch switching between a set of attachments for multiple slots. Therefore, it would be better to create an animation for each expression, save the set of attachment keys needed for it, and then reuse the keys when you want to create an animation with the expression.
I hope this will help you.
DanielThomas написавIt also means that animating expressions is a bit tedious. To change to a "Closed eye" expression one would need to go into each eye and change attachment for eye shape, eyelash, and makeup. Are there any shortcuts to this? Very specific naming and use search could be a good one - but ideally, one would prefer a single click in terms of a macro or possible scripting for the editor and creating your own functions.
My suggestion is:
Use a set dimension for these areas, and then you can try to use linked meshes. recolor via code when possible.
Mesh attachments - Spine User Guide: Linked meshes
Thanks for the suggestions!
Having an animation for each expression for fast keys is a great idea - and I think I already saw it in one of the tutorials/stream but forgot about it.
I'll see about linked meshes as it's hard to deform the eyelashes.
Thanks again!