Selection & Visibility

Selection Masking(選択マスク)

If you have a complex mesh, it is sometimes not easy to paint on the intended vertices. Suppose you only want to paint on a small area of the Mesh and keep the rest untouched. This is where "selection masking" comes into play. When this mode is enabled, a brush will only paint on the selected vertices or faces. The option is available from the header of the 3D Viewport (see icons surrounded by the yellow frame):


You can choose between Face Selection masking (left button) and Vertex selection masking (right button).

Selection masking(選択マスク) には通常のペイントモードには無い利点がいくつかあります:

  • モディファイアがアクティブな状態でも、元のメッシュの辺が表示されます。

  • You can select and deselect faces instead without the need to switch to Edit Mode.

Details About Selecting(選択の詳細)


  • Alt-LMB -- Single faces. Use Shift-LMB to select multiple.

  • A -- All faces, A A to deselect.

  • B -- ボックス選択。

  • C -- ブラシでの円選択。

  • Ctrl-I -- Invert selection.

The following only work for face selection:

  • L -- Pick linked (under the mouse cursor).

  • Ctrl-L -- Select linked.

Vertex Selection Masking(頂点選択マスク)





Vertex Selection





Vertex Selection Masking(頂点選択マスク)。

Face Selection Masking(面選択マスク)





Paint Mask



Face Selection Masking(面選択マスク)。

Hide/Unhide Faces(面の非表示/再表示)



エディトモードでキーボードショートカット H を用いて選択した面を非表示にできます。その上で見えている残りの面にペイントをし、 Alt-H で非表示になっていた面を再表示できます。

Hide/Unhide Vertices(頂点の非表示/再表示)

You cannot specifically hide only selected faces in vertex mask selection mode. However, the selection is converted when switching selection modes. So a common trick is to:

  1. Switch to Face selection mask mode to have the selection converted to faces.

  2. Refine your selection next or just hide the faces.

  3. Switch back to Vertex Selection mask mode.

Hidig faces will make sure that vertices that belong to visible faces remain visible.

The Clipping Region

To constrain the paint area further you can use the Clipping Region. Press Alt-B and LMB-drag a rectangular area. The selected area will be "cut out" as the area of interest. The rest of the 3D Viewport gets hidden.


The Clipping Region is used to select interesting parts for local painting.

You make the entire mesh visible again by pressing Alt-B a second time.

All paint tools that use the view respect this clipping, including box select, and of course brush strokes.

There are two helpful reminders that a Clipping Region is used:

  1. The clipping region is drawn as a grey box in the 3D Viewport

  2. The Text Info overlay will state that the perspective is "Clipped"

Select Linked(リンク選択)



Edit Mode(編集モード)


Select(選択) ‣ Select Linked(リンク選択) ‣ Linked(リンク)


Ctrl-L, Shift-L

Select geometry connected to already selected elements. This is often useful when a mesh has disconnected, overlapping parts, where isolating it any other way would be tedious. Pressing Shift-L will deselect linked any linked elements.

With L you can also select connected geometry directly under the cursor.