Base avatar setup

Assets/minecraft-character/scripts/debug.meta

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Assets/minecraft-character/scripts/debug/ShowMeshNormals.cs

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+using UnityEngine;
+
+[ExecuteInEditMode]
+public class ShowMeshNormals : MonoBehaviour
+{
+    public float length = 0.0125f;
+
+    SkinnedMeshRenderer smr;
+    Mesh bakedMesh;
+
+    void OnDrawGizmos()
+    {
+        if (!smr)
+            smr = GetComponent<SkinnedMeshRenderer>();
+        if (!bakedMesh)
+            bakedMesh = new Mesh();
+
+        smr.BakeMesh(bakedMesh);
+
+        var vertices = bakedMesh.vertices;
+        var normals = bakedMesh.normals;
+
+        for (int i = 0; i < vertices.Length; i++)
+        {
+            Vector3 worldPos = transform.TransformPoint(vertices[i]);
+            Vector3 worldNormal = transform.TransformDirection(normals[i]);
+            Gizmos.color = new Color(
+                worldNormal.normalized.x * 0.5f + 0.5f,
+                worldNormal.normalized.y * 0.5f + 0.5f,
+                worldNormal.normalized.z * 0.5f + 0.5f
+            );
+            Gizmos.DrawLine(worldPos, worldPos + worldNormal * length);
+        }
+    }
+}

Assets/minecraft-character/scripts/debug/ShowMeshNormals.cs.meta

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