## FAQ - Command

### In [Bone], weights of each vertex cannot be deleted when Painting by [Sub] brush.

[Auto normalize] is available.
  If [Normalize weight automatically] in [Paint] tab is checked, the weights of each vertex are adjusted to become total 100. You cannot delete(set to zero) weights.
  If you want to delete weight by [Sub] brush, set [Auto normalize] unavailable.

### [Boolean] is failed.

Change the condition and try again.
  [Boolean] is often failed in the following condition.
  - An object is not closed. There is a hole in an object.
    - Close a hole by [Hole] command.
  - Lines or faces of two objects are overlapped the same position.
    - Move an object a little and retry.