Hey guys, I have two shrinkwrap modifiers that successfully shrink my object 1 onto object 2 without any artifacts, and now I want to apply them to a single shapekey. However I have found that it seems impossible to apply and save the two shrinkwraps together at the same time... any ideas？
This part is only about merging shape keys, but I'll just leave it here. The solution is the Edit below. You can create two single shape keys, one for each Shrinkwrap modifier as you already found out.
Now go to the Object Data Properties and there under Shape Keys you should find them both. Set both values to 1, so that they both fully affect the mesh (or set them to any values where you like the result).
Now click on the Shape Key Specials menu (the arrow pointing downwards, below the +/- buttons) and choose New Shape from Mix. This creates a new shape key with the combination of the others as result for value 1. You can now delete the original shape keys.
//EDIT: So I thought you had converted both Shrinkwrap modifiers into shape keys and wished them to be one. I never needed two shrinkwraps on one object so I didn't test that and focused on merging the shape keys.
It turns out, that when I apply the first Shrinkwrap as shape key, at first of course its effect is gone (because the shape key is set to value 0), but if you set it to 1, the shape key and the second Shrinkwrap should produce the same result as before (at least in my test they did).
If you now apply the second Shrinkwrap modifier as shape key, you can delete the first shape key and only keep the second - because this one has already merged the influence of the first one into it. So remove the first shape key and if you then set the value to 1 on the second, it should show the result of both Shrinkwrap modifiers. If not, I would ask you to load your file so that we can check with your specific model.
You can ...
- duplicate object (delete modifiers if any)
- select also original (with Shift it became Active) and
- under Shapekeys > Join as Shapes
Alternatively you can add Boolean modifier to one of the Target object, than you can use only one Shrinkwrap modifier and use Apply as Shapekey