Is it possible?
Ive attempted to import my bendy bone model from blender to unity with animations, but inside unity the mesh isnt deforming as it does in blender.
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This isn’t a support forum, and a sample of what happens in blender and in unity would speed things up.
I have not tried exporting bendy bones to unity, but after quickly looking through how they work in blender…
This isn’t going to work in unity without heavy voodoo.
Bendy bones use single weight/vertex group per entirety of the bent bone. At the same time the bone deforms as if it was a spline.
Unity, on other hand, works with assumption that bones can be represented as a combination of rotation, translation and scale. Meaning bones do not act like splines. Meaning, unity has no support for bendy bones from blender.
A workaround is possible, but it is not going to be easy.
Either you, during export, generate proper set of bones and multiple vertex groups for anything affected by bendy bones…
OR you write your own skinned mesh component that will handle bendy bones properly.
Both of those possible solutions are high difficulty tasks.
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Thanks for the reply and apologies for making the topic in the wrong section.
That seems like it would be a task and a half to accomplish. I’ll give it a go.
Did you ever figure it out because I’m struggling too
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I haven’t tried it yet. But I guess it would work if we bake the animation and remove bones while exporting and import the mesh as animation itself?
You’d probably need to convert the key frames of the animation into Blend Shapes before importing into Unity. THen in Unity you could probably write an animation or script to move from one blendshape to another.
The only type of animation you can import is bone animation Not bendy bones, though, those don’t count. There is no equivalent to bendy bones in Unity, and I think it’s unlikely that the fbx file format even supports these.
You could definitely generate blendshapes so the mesh deforms per the bendy bones.
You don’t necessarily even need to control the blendshapes in unity as you can combine the result of the blendshapes and armature animation within blender using the nla editor, and then just import it into unity as animations.
This video goes over how to combine blendshapes and armature animation in blender:
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This tutorial might help for anyone else searching for a solution: [Blender 2.9/3.0] Convert Bendy bones to Regular bones
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