Điểm Điều Khiển (Control Points)¶

Đẩy Trồi Đường Cong và Di Chuyển (Extrude Curve and Move)¶

Tham Chiếu [Reference]

Chế Độ [Mode]:: Chế Độ Biên Soạn [Edit Mode]
Trình Đơn [Menu]:: Điểm Điều Khiển (Control Points) ‣ Đẩy Trồi Đường Cong và Di Chuyển (Extrude Curve and Move)
Tổ Hợp Phím Tắt [Shortcut]:: E

Extruding is the main way of adding new control points to a surface. It's not possible to do this directly as would be the case with Curves.

Start by selecting a complete border of the surface grid. Then press E to duplicate the control points, and move the mouse to bring them to the desired position. Finally, click LMB to confirm. (Alternatively, click RMB or press Esc to cancel the move and keep the new control points at their original position.)

Ví Dụ (Example)¶

First, we select a border control point and expand the selection to the complete row using Chọn Dãy Điểm Điều Khiển (Select Control Point Row).

../../../_images/modeling_surfaces_editing_control-points_selecting-point.png — Selecting control point¶

../../../_images/modeling_surfaces_editing_control-points_selecting-row.png — Selecting remaining control points in the row¶

Then, we extrude a few times:

../../../_images/modeling_surfaces_editing_control-points_extruding.png — Control points extruded twice¶

Tạo Phân Đoạn (Make Segment)¶

Tham Chiếu [Reference]

Chế Độ [Mode]:: Chế Độ Biên Soạn [Edit Mode]
Trình Đơn [Menu]:: Điểm Điều Khiển (Control Points) ‣ Tạo Phân Đoạn (Make Segment)
Tổ Hợp Phím Tắt [Shortcut]:: F

While this operator sounds like it creates a single segment (grid line) between two control points, it's really more similar to Cầu Nối các Vòng Cạnh (Bridge Edge Loops) for meshes: it bridges the gap between two disjoint surfaces by creating as many new segments as necessary. Simply select a border row (or column) in each surface, then press F to connect those borders.

Note that the two surfaces need to be part of the same Surface object. If you have two separate objects, these first need to be combined into one using Chắp Nối/Hội Nhập (Join). Also, the borders to connect must have the same number of control points.

Ví Dụ (Example)¶

The images below show bridging of two "surfaces" consisting of just a curve, but it's also possible to connect sheets.

../../../_images/modeling_surfaces_editing_control-points_joining-ready.png — Before bridging.¶

../../../_images/modeling_surfaces_editing_control-points_joining-complete.png — After bridging.¶

Làm/Mịn Màng (Smooth)¶

Tham Chiếu [Reference]

Chế Độ [Mode]:: Chế Độ Biên Soạn [Edit Mode]
Trình Đơn [Menu]:: Điểm Điều Khiển (Control Points) ‣ Làm/Mịn Màng (Smooth)

Moves the selected control points to give the surface a smoother appearance.

Móc (Hooks)¶

Tham Chiếu [Reference]

Chế Độ [Mode]:: Chế Độ Biên Soạn [Edit Mode]
Trình Đơn [Menu]:: Điểm Điều Khiển (Control Points) ‣ Móc (Hooks)
Tổ Hợp Phím Tắt [Shortcut]:: Ctrl-H

Adds a Bộ Điều Chỉnh Móc (Hook Modifier) that makes the selected control points follow a particular object or bone.

Đặt Điểm Đỉnh làm Phụ Huynh (Make Vertex Parent)¶

Tham Chiếu [Reference]

Chế Độ [Mode]:: Chế Độ Biên Soạn [Edit Mode]
Trình Đơn [Menu]:: Điểm Điều Khiển (Control Points) ‣ Đặt Điểm Đỉnh làm Phụ Huynh (Make Vertex Parent)
Tổ Hợp Phím Tắt [Shortcut]:: Ctrl-P

Creates a parent-child relationship that makes a particular object follow the selected control point(s).

While in Edit Mode, select another object by either clicking it with Ctrl-LMB in the 3D Viewport or by selecting it the Outliner. Then, select one or three control points of the surface and press Ctrl-P. Parenting an object to three control points will make it follow their averaged position.