by AdmiralTMP·Workflow
Images © AdmiralTMP. Used for product review; image policy.
Earns its place in the Superhive library by folding bone splitting and weight redistribution into a single automated step, with symmetry detection and a gradient preview for weight transitions.
Bone & Weight Splitter subdivides selected bones into a chosen number of segments, then automatically recalculates and distributes the vertex weights so you skip manual adjustment. Select a mesh and a vertex group, and the add-on detects the associated armature before splitting bones and aligning the weights.
Weight boundary smoothness is adjustable, with gradient visualizations that preview the expected transitions. Flexible numbering options cover bones and vertex groups, and the add-on detects symmetry indicators while supporting Blender's built-in symmetry features for consistent numbering across mirrored bones. It works in Object, Weight Paint, Edit, and Pose modes, and can process multiple mesh objects at once for unified results.
Released under the GPL license and marked as Blender Extension compatible, it runs across Blender versions from 3.1 through 4.4. It sits at rank 343 in the Superhive library, and a demo video is available.
Bone & Weight Splitter is best for blender artists automating bone subdivision and vertex weight redistribution during rigging and weight painting.
Bone & Weight Splitter is completely free to download and use.
Bone & Weight Splitter lists compatibility with Blender versions 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 4.0, 4.1, 4.2, 4.3, and 4.4, spanning a wide range of releases. It is also marked as Blender Extension compatible and distributed as an add-on. If you're on a version within that range, you should be covered; for anything newer or for setup specifics, the developer's page has the latest details.
Bone & Weight Splitter is listed as free in this catalog, and it's distributed under the GPL license as a Blender add-on. Licensing terms can change over time, so if you want to confirm the current cost or usage rights before adding it to a production project, the developer's page is the place to check. That page also links tutorials and support resources for the add-on.
Bone & Weight Splitter can split bones and adjust weights simultaneously while you're in Weight Paint mode, keeping that part of the workflow together. Beyond Weight Paint mode, the add-on also adapts to Object Mode, Edit Mode, and Pose Mode, automatically handling the relevant operations for whichever mode you're working in. That coverage lets you split bones without constantly switching contexts during rigging.
Bone & Weight Splitter uses smart armature detection: you select a mesh and a vertex group, and the add-on automatically identifies the associated armature, then splits the bones and aligns the vertex weights precisely. This removes the step of manually pointing the tool at the correct armature. It pairs with flexible numbering for bones and vertex groups and detection of symmetry indicators for consistent results across mirrored bones.
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