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Contour Rig Tools

notionalpipe.com

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Spec score 9.1 #1 of 27 in 3D Rigging Software

What it is

Contour Rig Tools is a spline-based rigging system for Autodesk Maya, designed for animation production and technical directors. Contour joint chains generate splines that serve as single deformer influences, potentially reducing weight-painting work. Its volume-aware spline deformation handles bends and twists and is designed to avoid pinching and candy-wrappering. Contour Bones include length and stretch controls, and bone CVs can be used as spline control points. Built-in IK includes stretch and anti-pop features, while constraints drive transforms and relationships between Contour chains. A Python API can create, modify, and query Contour nodes, accepting strings, pyNodes, and MObjects. The tool can drive conventional Maya joints for game-engine export. Version 1.0.12.1 supports Maya 2020 through 2026, except Maya 2023.0, 2023.1, and 2024.0; downloads are provided for Windows, Linux, and macOS. Animator Mode is free for animating with rigs and adding bone CVs. Creating or modifying rigs requires Rigger Mode, starting at $40 a month billed for twelve months.

Spec sheet

What it does
Contour Rig Tools is a spline-based character-rigging plug-in for Autodesk Maya.Read 15 Oct 2026 · notionalpipe.com
Purpose
Contour Rig Tools is a spline-based rigging system for Autodesk Maya.Read 4 Oct 2026 · notionalpipe.com
Audience
The maker describes Contour as a rigging tool for animation production, with workflows intended to reduce character-rigging complexity for technical directors.Read 4 Oct 2026 · notionalpipe.com
Support
Product support is provided by email at [email protected].Read 15 Oct 2026 · notionalpipe.com
API depth
The manual documents a small pre-deprecated API under Contourlib.predeprecatedAPI and warns that incorrect graph connections can cause evaluation errors.Read 15 Oct 2026 · manuals.notionalpipe.com
Bones
Contour Bones support built-in length and stretch, and bone CVs can be added as spline control points.Read 4 Oct 2026 · notionalpipe.com
Company background
Raf Anzovin says his career spans more than 25 years and includes work for EA, ReelFX, Arnold and Lego.Read 15 Oct 2026 · rafanzovin.com
Connectivity
Node-locked licenses need activation and intermittent internet access, with a stated seven-day offline grace period.Read 15 Oct 2026 · notionalpipe.com
Constraints
Integrated constraints drive transforms and relationships between Contour chains using the deformation system.Read 15 Oct 2026 · notionalpipe.com
Contour bones
Contour joint chains combine joints and bones, with built-in bone length and stretch.Read 15 Oct 2026 · notionalpipe.com
Deformation
Its volume-aware spline deformation supports bends and twists and is designed to avoid pinching and candy-wrappering.Read 4 Oct 2026 · notionalpipe.com
Documentation
The HTML manual covers installation, licensing, tutorials, deformation, constraints, control rigging, techniques, API functions and caveats.Read 15 Oct 2026 · manuals.notionalpipe.com
Floating licensing
Floating licenses require a separately configured license server and are arranged through Notional Pipe rather than the store.Read 15 Oct 2026 · notionalpipe.com
Game-engine workflow
Contour can drive conventional Maya joints for workflows that need game-engine export.Read 15 Oct 2026 · notionalpipe.com
IK and aim
Built-in IK supports stretch and anti-pop behavior, while aim handles support stretch for cartoony rigs.Read 15 Oct 2026 · notionalpipe.com
IK and constraints
Built-in IK includes stretch and anti-IK-pop features, and the tool includes constraints for driving transforms and relationships between Contour chains.Read 4 Oct 2026 · notionalpipe.com
Independent company context
Raf Anzovin’s biography says he currently works at The Third Floor and is a principal of Notional Pipe.Read 15 Oct 2026 · rafanzovin.com
Independent event news
Ozone Story Tech listed Notional Pipe as a partner at its SIGGRAPH 2026 booth, where Raf Anzovin was scheduled to demonstrate Ephemeral Rigging.Read 15 Oct 2026 · linkedin.com
Independent industry use
A LinkedIn post by Third Floor rigger Michael de la Rosa describes a fast rigging pipeline for Predator: Killer of Killers using the Contour system developed through Notional Pipe.Read 15 Oct 2026 · linkedin.com
Installation
Windows and macOS offer installer or manual installation, while Linux installation is manual only.Read 15 Oct 2026 · manuals.notionalpipe.com
Known caveat
The maker reports issues affecting Contour rigs when Maya Cached Playback is enabled and points users to manual caveats and workarounds.Read 4 Oct 2026 · notionalpipe.com
License connectivity
Node-locked licenses require internet access for activation and intermittent access afterward; the stated offline grace period is currently seven days.Read 4 Oct 2026 · notionalpipe.com
License model
The product uses per-seat animation-only and fully licensed modes; fully licensed mode is subscription-based and may be node-locked or floating.Read 15 Oct 2026 · manuals.notionalpipe.com
License requirement
Paid licenses are only needed to create or modify Contour rigs; animating or rendering with them is free.Read 4 Oct 2026 · notionalpipe.com
Limit: Cached Playback
The maker documents multiple Cached Playback problems, including crashes and evaluation errors in certain Maya versions, with workarounds or feature disablement required.Read 15 Oct 2026 · manuals.notionalpipe.com
Limit: no other DCC plans
The maker says it has no concrete plans yet to port Contour to other DCCs or game engines.Read 15 Oct 2026 · notionalpipe.com
Limit: no perpetual license
Contour Rig Tools is offered only as a subscription, with no permanent license option stated.Read 15 Oct 2026 · notionalpipe.com
Maker personnel
The maker identifies Raf Anzovin, Tagore Smith and Brian Kendall as its core team; Tagore is credited with over two decades of software development and Brian with more than a decade in animation software.Read 15 Oct 2026 · notionalpipe.com
Maya support
Version 1.0.12.1 supports Maya 2020 through Maya 2026, with stated exclusions for Maya 2023.0, 2023.1, and 2024.0.Read 4 Oct 2026 · notionalpipe.com
Notable release
Patch notes date version 1.0.12.1 to February 16, 2026 and identify Maya 2026 support as its main addition.Read 15 Oct 2026 · notionalpipe.com
Operating systems
The maker provides Windows, Linux, and macOS downloads and says the supported Maya versions run on those systems.Read 4 Oct 2026 · notionalpipe.com
Praise: production speed
Raf Anzovin reports using Contour to complete a difficult cartoon hand rig in under an hour during early production use.Read 15 Oct 2026 · rafanzovin.com
PyMEL dependency
GUI use requires PyMEL, and the Maya 2026 package includes an unofficial PyMEL build because an official one was unavailable when documented.Read 15 Oct 2026 · manuals.notionalpipe.com
Python API
The public Python API creates, modifies and queries Contour nodes and accepts strings, PyNodes and MObjects.Read 15 Oct 2026 · notionalpipe.com
Redistribution
Rigs made with Contour can be redistributed and animated by users of the free animator-only mode.Read 15 Oct 2026 · notionalpipe.com
Rigging workflow
Contour joint chains generate splines, which act as single influences for the deformer and can reduce weight-painting needs.Read 4 Oct 2026 · notionalpipe.com
Spline controls
Bone CVs provide extra control points along generated splines and can be added later.Read 15 Oct 2026 · notionalpipe.com
Spline deformation
Its volume-aware deformer is designed to preserve curvature during extreme bends and twists.Read 15 Oct 2026 · notionalpipe.com
System support
Release 1.0.12.1 supports Maya 2020 through Maya 2026 on Windows, Linux and macOS, with only recent patch releases officially supported.Read 15 Oct 2026 · notionalpipe.com
Version exclusions
Maya 2023.0, 2023.1 and 2024.0 are unsupported; Maya 2023 requires 2023.2 or later and Maya 2024 requires 2024.1 or later.Read 15 Oct 2026 · notionalpipe.com
Weight painting
A joint-chain spline can act as one deformer influence, reducing weight-painting work.Read 15 Oct 2026 · notionalpipe.com

Plans and prices

Animator Mode Free Animate Contour rigs · add bone CVs · no rig creation or modification Read 15 Oct 2026 · notionalpipe.com
Rigger Mode — twelve months $40 a month $40.00 / month for twelve months Create and modify Contour rigs · node-locked or floating licensing Read 15 Oct 2026 · notionalpipe.com
Rigger Mode — six months $45 a month $45.00 / month for six months Create and modify Contour rigs · node-locked or floating licensing Read 15 Oct 2026 · notionalpipe.com
Rigger Mode — one month $50 a month $50.00 / month for one month Create and modify Contour rigs · node-locked or floating licensing Read 15 Oct 2026 · notionalpipe.com

Every Contour Rig Tools plan and price →

Strong points and limits

Strong points

  • Joint chains generate spline deformer influences.
  • Built-in IK includes stretch and anti-pop features.
  • Python API can create, modify, and query nodes.
  • Can drive Maya joints for game-engine export.

Limits

  • Maya 2023.0, 2023.1, and 2024.0 are excluded.
  • Creating or modifying rigs requires a paid license.
  • Node-locked licenses need internet activation and intermittent access.
  • Cached Playback can affect Contour rigs.

Who it suits

Contour Rig Tools suits technical directors and animation-production teams building character rigs in supported Maya versions. Animators can use Animator Mode to animate with existing Contour rigs.

Contour Rig Tools in depth

Read the full write-up

Contour Rig Tools is a spline-based rigging system for Autodesk Maya, aimed at technical directors building character rigs for animation production. It is a strong fit for Maya teams seeking spline-driven deformation and scripting controls, but less suitable where the Maya version or Cached Playback caveats conflict with the pipeline.

Overview

Contour builds splines from joint chains and uses each spline as a single deformer influence, which can reduce weight-painting work. That gives riggers a focused way to shape character deformation, rather than a general-purpose rigging environment. Contour can also drive conventional Maya joints for game-engine export, providing a route to standard joints downstream.

Licensing distinguishes rig creation from rig use: creating or modifying Contour rigs requires a paid license, while animating or rendering with them is free. That separation suits teams that centralize rigging while letting animators work with finished rigs without a Rigger Mode license.

Key features

Spline deformation and controls

Volume-aware deformation supports bends and twists and is designed to avoid pinching and candy-wrappering. Contour Bones add built-in length and stretch, while bone CVs can become spline control points. These tools give riggers direct controls over deformation and length; the value is greatest for character work where those behaviors matter.

IK, constraints and scripting

Built-in IK includes stretch and anti-IK-pop features, and constraints can drive transforms and relationships between Contour chains. The Python API can create, modify and query Contour nodes, accepting strings, pyNodes and MObjects. That combination offers technical directors several ways to construct and automate rigs within Maya, though the workflow remains tied to that host.

Export and compatibility

Contour can drive conventional Maya joints for game-engine export. Version 1.0.12.1 supports Maya 2020 through 2026, excluding Maya 2023.0, 2023.1 and 2024.0. The maker provides Windows, Linux and macOS downloads and says supported Maya versions run on those systems. Cached Playback can cause issues with Contour rigs, so pipelines that depend on it should account for the caveats and workarounds.

Pricing

Animator Mode is free: users can animate with Contour rigs and add bone CVs. It is the clear choice for animators who need to work with existing rigs, but it does not include creating or modifying them.

Rigger Mode includes a node-locked or floating license and permits creating and modifying Contour rigs. The twelve-month option is $40 a month, billed at $40.00 / month for twelve months; the six-month option is $45 a month, billed at $45.00 / month for six months; and the one-month option is $50 a month, billed at $50.00 / month for one month. The longer terms lower the monthly price but commit the buyer for longer. A 30-day trial gives prospective riggers a way to evaluate the paid workflow.

Node-locked licenses require internet access for activation and intermittent access afterward; the offline grace period is seven days. Teams choosing a license should account for that connectivity requirement.

Platforms

Contour is a Maya host plug-in, with downloads for Windows, Linux and macOS. Its API support makes it suitable for scripted Maya workflows, not for users seeking a standalone rigging application.

Who it's for

Contour is best suited to technical directors and character-rigging teams producing animation in Maya, especially those who want spline controls and a Python API. Animators who only use completed Contour rigs can work under the free mode. It is a weaker fit for pipelines on excluded Maya releases or those unable to accommodate the Cached Playback caveat.

Pros and cons

Pros

Joint-chain splines act as single influences, potentially reducing weight-painting needs.

Built-in stretch, anti-IK-pop behavior and constraints provide dedicated rig controls.

Free Animator Mode lets users animate or render existing rigs without paying for rig creation rights.

Conventional Maya joint output supports a game-engine export workflow.

Cons

Rig creation and modification require a paid Rigger Mode license.

Maya 2023.0, 2023.1 and 2024.0 are excluded from the stated supported range.

Cached Playback issues may complicate pipelines that rely on that Maya feature.

Node-locked licenses require intermittent internet access, with a seven-day offline grace period.

Alternatives

For a broader set of 3D rigging choices, see 3D Rigging Software.

Houdini is another freemium option for readers considering a different 3D software workflow.

Mixos Mold is a freemium option with a free plan across mobile, desktop and web platforms.

Mesh2Motion is free for personal or commercial use and runs on desktop and web platforms.

Mesh2Rig is a free Blender add-on for Blender 4.2 LTS and newer.

BlenRig is a free option for biped characters.

dpAutoRigSystem is a free, open-source automatic rigging system for Maya.

InstantRig is a free Windows option designed for keyframe animation, with one user per license.

MakeHuman is free to download without license fees, a paywall or an email requirement.

Verdict

Choose Contour Rig Tools if your team builds character rigs in a supported Maya release and wants spline deformation, dedicated rig controls and Python access. Its strongest practical advantage is that finished rigs can be animated and rendered for free; look elsewhere if your Maya version is excluded or Cached Playback is essential to your workflow.

Verdict

Contour Rig Tools combines spline deformation, rigging controls, and scripting for Maya workflows. Animator Mode is free, but rig creation requires a paid license, and the stated Maya exclusions and Cached Playback caveat merit attention.

Where Specifiction places it

Alternatives to Contour Rig ToolsAll alternatives →