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Vertex Filter - By Bone

Vertex Filter - By Bone

Vertex Filter - By Bone is a Vertex Filter component which, in combination with Mesh Cutter, allows you to select portions of a mesh to delete or hide, based on their bone weights to a specific bone.

Setting up Vertex Filter - By Bone​

Vertex Filter - By Bone must be attached to a GameObject with a Mesh Cutter component. You can add it by clicking the "Add Vertex Filter" button on the Mesh Cutter component, or by adding a Vertex Filter - By Bone component manually.

Configuration​

  • Target Bone: Select the bone transform you want to filter by. Only vertices weighted to this bone will be considered.
  • Weight Threshold: Set the minimum bone weight required for a vertex to be selected (0.0 to 1.0). Vertices with bone weights equal to or above this threshold for the target bone will be filtered.
    • Bone weights are normalized before being compared to the threshold.

How it works​

The filter examines each vertex's bone weights and selects vertices that have a weight to the specified bone that meets or exceeds the threshold. This allows for fine control over which parts of a mesh are affected based on their skeletal binding.

For example:

  • Setting threshold to 0.01 will select vertices with any meaningful weight to the bone
  • Setting threshold to 0.5 will only select vertices that are primarily controlled by the bone
  • Setting threshold to 1.0 will only select vertices completely controlled by the bone

Note: This filter only works with Skinned Mesh Renderers that have bone weight data. It has no effect on regular Mesh Renderers or meshes without bone weights.