Skin weights.
Maximum number of bone weights that can affect one vertex. The value can be either One Bone, Two Bones, Four Bones or Unlimited.
Meshes with more than 4 bones per vertex require Compute Shader support for GPU Skinning. This may impact performance on platforms without Compute Shader support, which have to process the vertices on the CPU.
using UnityEngine;
public class Example : MonoBehaviour { void Start() { // Set skin weights to one bone. QualitySettings.skinWeights = SkinWeights.OneBone; } }
See Also: ModelImporter.maxBonesPerVertex, Quality Settings.