Unity 2d Spritesheet update and Rigging

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Hello everyone,

My first question is about updating a spritesheet. As you can see in the image, I have rigged my character’s spritesheet and positioned the parts in the hierarchy. Later, I realized that I forgot to rig the weapon and the finger of the hand. Is there a way to add them to my existing spritesheet without breaking the bones and positioning I’ve already done? When I export my character’s spritesheet out of Unity, edit it, and import it back, all the bones and positioning are lost, as you know.

My second question is about giving depth to the character during the rigging process. Is it more logical to not assign depth while rigging and instead adjust which part is in front or behind using the sort layer in the hierarchy panel?

Third question, I heard something about a sprite atlas. I’m not sure if it’s exactly what I’m looking for. Does the sprite atlas involve rigging the sprites individually as separate PNGs, and then not adding them to the sprite atlas but controlling them separately? However, in the sprite skin, the bones aren’t all in one object, so I have to open sprite skin for each sprite I’ve rigged. This is confusing to me.

I’m new to Unity, so I’d appreciate detailed answers. Thank you!


Let me know if you need further assistance!