hand rig debug visuals

src/Arts.cs

@@ -352,6 +352,18 @@ static class Arts
             }
         }
 
+        // hand debug
+        for (int i = 0; i < (int)Handed.Max; i++)
+        {
+            Mesh.Sphere.Draw(
+                mat_unlit,
+                Rig.pose_hld[i].ToMatrix(
+                    2 * U.cm
+                ),
+                Color.Hex(Rig.holding[i] ? 0xFF00FFFF : 0x808080FF).ToLinear()
+            );
+        }
+
         // particles
         for (int i = 0; i < VFX.ps.count; i++)
         {