As the title says, i wanna know what happens to bones that do not deform the mesh (like IK bones) when imported into unity and used in Mecanim. I am a complete newbie in terms of animations in Unity so i really wanna know how this works so i can prepare my character in blender before animating/importing it.
2 Answers
2You don’t need to worry about that. If the bones do not deform the mesh in Blender, they will not do so in Unity either. They will stay, but they won’t do anything. They won’t affect the model or its animation in any way, you will just have some extra bones in the rig.
Adding this in for the info.
IK is only supported by Unity Pro. Placing an IK rig into free version will strip out the IK and will use FK (Forward Kinematics) to derive the movements instead.
Most other fangled stuff in Blender is unsupported by Unity as of yet.
Correct me if I'm wrong, but isn't the IK in Unity a completely different thing from the IK in Blender? Unity's IK is meant to correct bone positions (place feet on the ground, move a hand to a specific point in the world, etc...), and Blender's IK is meant to help with animating (grab a bone to pull the entire arm, for example). I am not an expert tho, this is just how I imagine it.
– ColdPluto
I was worried that all my animations would turn into a soup of arms and legs...
– M1k4I almost agree. You shouldn't worry but you can get strange deformations when the IK is stripped out. These are, however, easily remedied, normally.
– meat5000