About Spine
Spine is a 2D skeletal animation software for video games. It provides an efficient workflow for creating animations by attaching images to bones and then animating the bones, for integration into games via its runtime libraries.
Spine by Esoteric Software is a dedicated 2D skeletal animation tool for video game development. It enables animators and developers to create fluid, dynamic character animations with a smaller asset footprint compared to traditional frame-by-frame techniques. Key features include mesh deformation with free-form deformation (FFD) and skinning (weights), inverse kinematics (IK) for posing, and path constraints. The software supports a wide range of game engines and programming languages through its official runtime libraries, including Unity, Unreal Engine, Godot, C++, C#, and JavaScript. Spine is available for Windows, macOS, and Linux. Pricing is a one-time purchase with different tiers (Essential, Professional, Enterprise) and a free trial is available for evaluation. Support is offered via a forum and documentation.
Pros & Cons
- Reduces game asset size by storing bone data instead of individual frames.
- Provides extensive runtime support for most major game engines and languages.
- One-time purchase model for Essential and Professional licenses includes all future updates.
- Offers a powerful set of features for creating complex 2D animations.
- Available on Windows, macOS, and Linux.
- The Essential license lacks advanced features like meshes, FFD, and IK.
- Businesses with over $500,000 in annual revenue must purchase a more expensive, annually-renewing Enterprise license.
- The trial version does not allow saving or exporting projects.
Features
Key features
Attach images to bones and animate the bones for an efficient workflow.
Deform images using meshes with Free-Form Deformation (FFD) and skinning (weights) for organic movement.
Pose characters and control complex bone chains in an intuitive way.
Constrain bones to follow a defined path for complex movements.
Organize attachments to easily swap character outfits or looks while reusing the same animations.
Provides detailed control over the timing of all animated elements.
Adjust animation curves for more lifelike and nuanced motion.
Additional features
Use polygons to define visibility, creating effects like holes or revealing parts of the skeleton.
Attach polygons to bones for hit detection and physics integration.
Optimizes images into a texture atlas for efficient rendering in games.
Blend multiple animations together, such as a character walking while shooting.
Manipulate bones with code at runtime for dynamic interactions.
Exports animation data to JSON or a compact binary format.
Visualize animation motion and spacing over time.
Pricing
Annual plans
Required for businesses with >$500,000 USD annual revenue. Renews annually. Contact for pricing.
Source: vendor pricing page →For schools and educational institutions. Annual license for a specified number of computers. Contact for pricing.
Source: vendor pricing page →One-time purchase
- All basic features
- Export to every supported format
Original price $99. Does not include meshes and other advanced features.
Source: vendor pricing page →- Includes all features
- Empowers industry professionals to design advanced animations
Original price $449.
Source: vendor pricing page →Countries & Languages
Interface languages
Billing currencies
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About Spine
Spine is a 2D skeletal animation software for video games. It provides an efficient workflow for creating animations by attaching images to bones and then animating the bones, for integration into games via its runtime libraries.
Spine Details
Spine's In-App Market Place
Does Spine have an in-app market place?
Yes
How many Mini-Apps in the marketplace?
0
Mini Apps
Pricing Options
Plans
Annual plans
Required for businesses with >$500,000 USD annual revenue. Renews annually. Contact for pricing.
Source: vendor pricing page →For schools and educational institutions. Annual license for a specified number of computers. Contact for pricing.
Source: vendor pricing page →One-time purchase
- All basic features
- Export to every supported format
Original price $99. Does not include meshes and other advanced features.
Source: vendor pricing page →- Includes all features
- Empowers industry professionals to design advanced animations
Original price $449.
Source: vendor pricing page →Accepted Payment Currencies
USD
Pros & Cons
- Reduces game asset size by storing bone data instead of individual frames.
- Provides extensive runtime support for most major game engines and languages.
- One-time purchase model for Essential and Professional licenses includes all future updates.
- Offers a powerful set of features for creating complex 2D animations.
- Available on Windows, macOS, and Linux.
- The Essential license lacks advanced features like meshes, FFD, and IK.
- Businesses with over $500,000 in annual revenue must purchase a more expensive, annually-renewing Enterprise license.
- The trial version does not allow saving or exporting projects.
Spine's Support Options
Documentation
https://esotericsoftware.com/spine-documentationCommunity Forums
https://esotericsoftware.com/forumSpine's Alternatives
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