Question 2D/ Bone Weights / Vertex questions

Hi @bluebamf1, currently weights in the Skinning Editor can only be positive.

I would like to better understand your use case, could you please describe the effect you are trying to achieve in more detail? A quick sketch or a video would be super helpful.

 

Thank you @bluebamf1, I think I know what kind of effect you are trying to achieve. This is a known limitation of our system. The 2D Animation package comes with IK constraints for limbs and bone chains, but we don't have dedicated position constraints - I would like to know if such constraints would be useful for 2D animators working in Unity.

Unity Editor comes with position constraints but they were designed for other use cases. In some simple scenarios you should be able to set the source influence to -1 to 'mirror' game object transforms.

However, you might face some issues when you shift your parent game object to a different position as demonstrated in this video:

This is not the officially recommended way to solve this problem, but you could work around it and modify your Position Constraint sources to include:
2 x Parent transform
-1 x Source transform


Here is a video to illustrate this idea:

Let me know if this solution works for you.

Another way to create such rig would be to use the Animation Rigging package. It was designed with 3D character in mind, but if you have some experience with C# programming you could write your own custom constraint to work with Animation Rigging.

Hope this helps.

 

That's correct, this is something that can be done outside the Skinning Editor - constraints are added to game objects as components. You could create an instance of your character by dragging and dropping it into your scene and add constraints to bone game objects.