How to add bones in unity 3d

What are Bones?

Bones in Unity 3D represent the points of connection between various parts of a character or object’s body, such as the head, arms, legs, torso, and fingers. These bones serve as reference points for animations, allowing developers to create natural and believable movements for their characters and objects.

When creating a model in Blender or another 3D modeling program, it is important to include bones that will be used in Unity 3D. Many models come pre-rigged with bones already included, but if your model does not have any bones, you can create them manually by adding verts and setting their parent relationship.

Adding Bones to a Model

1. In Object Mode, select the object that will be rigged with bones.
2. Go to <Edit> <Rigging> <Armature> <Add Armature>. This will create an armature object in your scene, which will serve as the container for your bones.
3. Select the armature object and switch to <Pose Mode>. In Pose Mode, you can add poses for your model by selecting specific verts and setting their position and rotation.
4. Once you have added all of the necessary poses for your model, go back to Object Mode and select your object again.
5. Go to <Edit> <Rigging> <Constraints> <Set Parent>. This will set the parent relationship between each bone and its corresponding vert in your object.
6. Finally, go to <Edit> <Rigging> <FK> <Bake>. This will bake the armature onto your object, creating the necessary bones that can be used in Unity 3D.

Adding Bones to a Model in Unity 3D

7. Import your model into Unity 3D. Make sure that the bones you want to use are included in the import settings.



8. Select your model and go to <Animation> <Rigging> <Skeleton>. This will create a skeleton for your model, which is essentially a collection of bones that can be used for animation.
9. In the Hierarchy window, you will see a tree structure of all the bones in your skeleton. You can rename and move these bones as needed to better suit your needs.
10. Once you have created your skeleton, you can create animations by setting up keyframes for your model’s movements. To do this, go to <Animation> <Create> <Animator Controller>.
11. In the Animator window, you can set up various animation states and transitions that will determine how your model moves throughout the scene.
12. Finally, assign your skeleton to your model by dragging it onto your model in the Hierarchy window. This will allow Unity 3D to use the bones you have created for animation.

Best Practices for Bone Creation and Animation Controller Setup

When creating bones and setting up animations in Unity 3D, it is important to follow best practices to ensure that your characters and objects move realistically and smoothly throughout your game or experience. Here are a few tips to keep in mind: