Blender/Cinema 4D Specialist for Model Bone Rigging (clean game skeleton for Unity)

A specialist is needed to work on an animal model in Cinema4D, who has completed the bone rigging and prepared it for proper export to Unity. The rigging is present but is not functioning correctly.

This work can be done in Blender, as I know it will be better suited for this.

A clean game-ready rig for Unity needs to be created.

The current rig from Cinema 4D has issues with:

• joint orientation
• local axes
• baked rotations

Because of this, the following do not work correctly in Unity:

• LookAt systems
• procedural animation
• IK
• runtime head/eye tracking
• animation blending

A completely clean skeleton setup is needed.

1. Rebuild the skeleton from scratch

Please DO NOT attempt to repair the current rig.

The current skeleton has:

• incorrect local axes
• baked rotations
• incorrect joint orientation

A new clean skeleton needs to be created.

2. Unity/Game-ready joint orientation

All joints should use:

Forward = Z+

Up = Y+

Right = X+

All joints must have the same logic for local axes.

3. Clean transforms

All joints in bind pose must have:

Rotation = 0,0,0

Scale = 1,1,1

Without:

• baked rotations
• hidden offsets
• pre-rotation values

4. Head/neck setup (VERY IMPORTANT)

The head bone must:

• rotate correctly in local space
• look forward (Z+)
• work normally with Unity LookAt
• not flip or rotate incorrectly

The hierarchy must be clean.

Example:

root

 spine/body

 neck

 head

5. Eyes

The eyes must be separate objects/bones and support:

• eye tracking
• procedural eye movement
• blinking/morphs

6. Tail

The tail rig must support:

• procedural animation
• idle movement
• future runtime physics

Tail bones must be clean and evenly oriented.

7. Skinning / Weights

After creating the new skeleton:

• rebind
• reconfigure weights
• check for smooth deformations

8. Morphs / Blendshapes

Must preserve:

• facial morphs
• expression morphs
• blink morphs

They will be used for emotions in the application.

9. FBX Export Requirements

Export settings:

FBX

Y Up

Z Forward

Scale = 1

Do not export:

• helper objects
• controllers
• IK handles
• constraints

Only export:

• mesh
• joints
• morphs/blendshapes

10. Check before submission

Must check:

• the head rotates normally
• no flipping
• no strange rotations
• local axes are consistent
• the model works correctly in Unity

Final goal

The character must support:

• procedural behavior
• runtime animation
• LookAt
• eye tracking
• emotional reactions
• future IK systems

️ Important

A GAME RIG for Unity is specifically needed, not just a render/animation rig for Cinema 4D.

Compatibility with Unity is critically important.