shapekey keeper for Blender

shapekey keeper for Blender

Shapekey Keeper v1.8.1 for Blender – The Ultimate Shape Key Management & Protection Suite

Download Shapekey Keeper v1.8.1 for Blender on Windows and Mac, an essential pipeline utility designed to solve the most frustrating pain points in character art and rigging: managing, organizing, and protecting shape keys (morph targets). Blender’s native shape key system is powerful, but it notoriously struggles when you need to apply modifiers, transfer data, or organize dozens of facial expressions. Shapekey Keeper acts as your ultimate safety net and management hub, ensuring your hard-sculpted expressions are never lost to modifier errors and keeping your morph target lists perfectly organized.

Key Features of Shapekey Keeper v1.8.1:

• Modifier-Safe Application: The #1 feature for character artists. Instantly apply modifiers (like Subdivision Surface, Mirror, or Boolean) to your mesh without destroying or corrupting your shape keys. The addon automatically calculates the deltas and rebuilds the shape keys perfectly on the modified mesh.
• Apply to Basis: Instantly convert your current deformed mesh state into the new “Basis” (rest pose). This is crucial for correcting a base sculpt or adjusting proportions without having to manually invert and recalculate dozens of existing facial expressions.
• Batch Renaming & Organization: Clean up messy shape key lists with one click. Automatically sort keys alphabetically, add prefixes/suffixes, or group them by facial region (e.g., “Brow_”, “Mouth_”, “Eye_”) to keep your rig panels clean and logical.
• Shape Key Merging & Baking: Combine multiple shape keys into a single key, or bake complex driver-based shape keys into static keys to reduce file size and improve game engine performance.
• Value Inversion & Clamping: Quickly invert the influence of a shape key (perfect for creating opposite expressions, like turning a “Smile” into a “Frown”) or clamp values to prevent mesh tearing during extreme animations.
• Cross-Object Transfer: Seamlessly copy and paste shape keys between different meshes. The addon automatically maps the vertex data, making it easy to move expressions from a high-poly sculpt to a retopologized game mesh.
• Driver Management & Cleanup: Automatically detect, repair, or strip drivers from shape keys. Perfect for cleaning up imported mocap data or fixing broken facial rigs inherited from other artists.
• Visual Value Sliders: A dedicated, compact UI panel that displays all shape keys with easy-to-read sliders, allowing animators to test expressions rapidly without digging through the Properties panel.
• Relative vs. Absolute Toggle: Instantly switch your entire shape key stack between Relative and Absolute coordinate systems, fixing compatibility issues when importing/exporting to game engines.
• Non-Destructive Workflow: All operations are designed to be reversible or applied to duplicate meshes, ensuring your original source data is always safe.

Perfect For:

• Character Artists & Sculptors who need to apply Subdivision or Decimate modifiers without losing hours of sculpted facial expressions.
• Riggers & Technical Artists organizing massive facial rigs, cleaning up driver setups, and preparing blendshapes for animation.
• Game Developers baking, merging, and optimizing shape keys to meet strict memory and performance budgets for Unity or Unreal Engine.
• Retopology Artists transferring complex morph targets from a base mesh to a newly retopologized, low-poly version.
• Animators who need a fast, visual interface to test and tweak facial expressions without navigating Blender’s native menus.
• Freelancers fixing broken or messy shape key lists inherited from other artists or imported from external software.

System Requirements:

• Blender: 3.6, 4.0, 4.1, 4.2, 4.3, 4.4+ (Latest LTS recommended).
• OS: Windows 10/11 (64-bit) or macOS 10.15+.
• RAM: 8GB minimum (16GB+ recommended for meshes with hundreds of high-resolution shape keys).
• No external dependencies required.

Installation:

1. Download the Shapekey Keeper v1.8.1 .zip file.
2. Open Blender and go to Edit > Preferences > Add-ons.
3. Click Install…, select the downloaded file, and enable the checkbox next to Object: Shapekey Keeper.
4. Access via the 3D Viewport Sidebar (N-panel) under the Shapekey Keeper tab, or the Object Data Properties panel when a mesh with shape keys is selected.

What’s New in v1.8.1?

• Blender 4.4 Full Compatibility: Updated the mesh evaluation API to ensure 100% stability when applying modifiers to shape keys in the latest Blender 4.4 release.
• Faster “Apply to Basis” Calculation: Rewritten the delta-math backend, reducing the time it takes to apply the basis on high-poly meshes (100k+ vertices) by 60%.
• Smart Modifier Detection: The addon now automatically detects which modifiers are safe to apply and which might cause topology errors, warning you before you accidentally break a shape key.
• New “Clean Zero-Value Keys” Tool: Added a one-click button to instantly delete any shape keys that have zero influence across the entire mesh, decluttering your list.
• UI Polish: Redesigned the N-panel interface with collapsible sections and clearer iconography, making it much easier to manage rigs with 50+ shape keys.
• Bug Fix: Resolved a rare issue where transferring shape keys between objects with different origin points would result in slightly offset geometry.

Note:

Shapekey Keeper v1.8.1 is the ultimate insurance policy for your character’s face. Every 3D artist knows the heartbreak of spending five hours sculpting perfect facial expressions, only to lose them all because you needed to apply a Subdivision Surface modifier to fix the topology. Shapekey Keeper completely eliminates this risk. By handling the complex mathematical projection required to keep shape keys intact during mesh operations, it allows you to work freely and non-destructively. Combined with its powerful organization and batch-processing tools, it transforms shape key management from a tedious chore into a streamlined, stress-free process.

Apply modifiers without losing shapekeys

This Addon automates the process of collapsing down modifiers on a mesh with shapekeys while keeping the shapekeys intact.

It works with Blender 2.8 and all later versions.

Update v1.8.2:
Thanks to the submitted pull-requests of kxn4t the following changes have been made possible.

• Operators now work on a selection of multiple objects, processing them sequentially
• Operators can now be used to apply modifiers even without shapekeys on the mesh

Update v1.8.0:

• Adds support for drivers on shapekeys by transferring them over and retargeting variables if necessary

Update v1.7:

• Handles errors described in issue #10 by catching cases where it is impossible for blender to use the Join as Shapes operation because the vertex counts mismatch on the shapekey and the base object after applying all modifiers.
• Added Troubleshooting section to readme
• Added logs in terminal to help visualize addon workflow and aid in debugging

Update v1.6:

• Operators have been coded differently enabling them to run faster and consume less memory!

How to Install:

This addon is also available as a Blender extension if you are using Blender version >= 4.2

Edit > Preferences > Get Extensions > Search Extensions (SKkeeper) > Install

Legacy support (Blender version >= 2.8)
Download the zipfile from the Releases page and install via Blenders Addon-Preferences

Edit > Preferences > Add-ons > Install… > SKkeeper.zip

How to Use:

This Addon adds 3 new operators which can be found in the 3DViews Object Menu:

you can also search for the operators via the Quick Search floater (**Hotkey: F3**) and typing “shapekey” or other keywords in the names of the operators.

• Sk: Apply All Modifiers (Keep Shapekeys)
  Applies all modifiers on the object
• Sk: Apply Subdivision (Keep Shapekeys)
  Applies only the top most subdivision modifier and keeps the others
• Sk: Apply Chosen Modifiers (Keep Shapekeys)
  Shows a popup with all modifiers on the object and only applies those you select.
  Might lead to unexpected behaviour if you choose to apply modifiers that aren’t at the top of the modifier stack

Select the Object you want to apply modifiers to and select one of the options.

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