Auto-Rig Pro: Quick Rig

Turning an existing skeleton into a control rig

Quick Rig works as an extension for the Auto-Rig Pro addon, so the process begins with Auto-Rig Pro already installed. From there, it tackles a very specific problem: taking a skeleton and mesh that already exist and moving them into an Auto-Rig Pro armature with controllers ready for animation. That makes it relevant when a character has already been built, skinned, or partially rigged and the job is to move forward without starting over.

The setup is built around practical rig handling. Weights can be preserved, IK-FK generation is part of the workflow, and animation support is included in the rigging path. It is also meant to support the vast majority of character skeletons, including skeletons with non-standard bone axes. In practice, that means the tool is not limited to a single tidy bone layout; it is meant to work from the structure a character already has.

Adding limbs from the existing bone chain

The limb setup follows a direct sequence. Select the first bone of a limb, such as the shoulder for an arm, and click the plus button to add that limb. The limb settings are then filled in with the correct bones, and the bone axes are set automatically as well. That automatic setup is useful when the skeleton matches the expected pattern, but the settings can be wrong in some cases if the skeleton is complex.

Once the limb is added, the workflow depends on checking those settings before generating the final rig. The tool is clearly aimed at a hands-on pass through the character skeleton rather than a fully invisible conversion. That keeps the user close to the structure being rigged, which matters when a character has unusual proportions, extra bones, or bone orientations that do not fit a standard template.

Spine and head chains

The supported limb definitions are broad enough to cover a range of character builds. Spines can run from two to six spine bones. Heads can include an optional neck and a head bone, with support for up to ten neck bones. Facial bones and shape keys are included in that same scope, so the upper-body setup can extend into facial structure when the character carries those elements in the skeleton or in shape key form.

Legs, arms, and fingers

Legs include thigh, calf, foot, and toes bones. Optional twist bones are supported, and there is a three-bones-leg option for extra thigh bones. That option is called out for quadrupedal creatures, which shows that the setup is not restricted to a standard upright character. Arms follow the same practical logic: shoulder is optional, then arm, forearm, hand, and optional finger bones, again with twist bones available. Fingers can have three or four phalanges, with or without metacarpals.

Preserve or convert the base skeleton

After the limbs are in place, the major choice is between Preserve and Convert. Preserve keeps the existing armature untouched while binding it to the rig controllers only. Convert goes further and generates a full Auto-Rig Pro armature that is compliant with the addon’s editing and exporting tools. Those are two different implementation paths, not just two names for the same result.

Preserve fits cases where the original skeleton should stay in place. Convert fits cases where the character needs to become a complete Auto-Rig Pro armature for a fuller editing workflow. If the setup needs to be adjusted again, Revert returns the character to the base skeleton so other settings can be tried without staying locked into one result.

There are a few other behaviors tied into the rigging process. Constraint retargetting is included, although some limitations apply. Shape keys drivers retargetting is part of the tool as well. Animation support is also built in, with the skeleton animation baked to the control rig as an option. That keeps the tool connected to motion work instead of stopping at a static rigging pass.

Mapping presets and bones that do not fit the main limbs

Quick Rig can import and export custom mapping preset files, which makes it easier to reuse a known mapping setup on different characters. Built-in mapping presets include Realillusion Character Creator, DAZ, Human Generator, Mixamo, Unreal Mannequin, and VRoid. Those presets give the workflow a starting point for several common character ecosystems before any manual adjustment is needed.

The handling of orphan bones is another important part of the system. Bones that do not belong to the standard limb definitions are inserted into the rig hierarchy automatically. That includes facial bones, unusual twist and tweak bones, and bones used for clothes or props. Instead of leaving those pieces outside the rig, the hierarchy is built so they stay included.

This makes the tool useful when a character has more than the obvious arm, leg, spine, and head chains. Extra bones do not have to be treated as a separate problem after the main rig is generated. They are brought into the same structure, which helps keep the control rig closer to the full skeleton that already exists on the character.

What the workflow gives teams

The overall workflow stays focused on one task: turning an existing skeleton and mesh into an Auto-Rig Pro setup that can be used for animation. The steps are clear enough to follow directly. Add limbs from the existing bones, check the automatic limb settings, choose Preserve or Convert, and generate the rig. From there, the tool brings together weights preservation, IK-FK generation, animation support, custom mapping presets, and coverage for extra bones.

For teams deciding whether this fits a character pipeline, the strongest practical takeaway is that Quick Rig is built to keep the skeleton you already have while moving it into an Auto-Rig Pro control structure. It is especially relevant when the rig includes unusual bone axes, extra facial or prop bones, or skeleton layouts that need a more flexible path than a fixed template.

Project Screenshots