Hướng Dẫn theo Đường Cong (Curve Guide)#
Tham Chiếu (Reference)
- Panel (Bảng):
- Thể Loại (Type):
Hướng Dẫn theo Đường Cong (Curve Guide)
The Curve Guide is used to force particles to follow a certain path defined by a Curve Object. A typical scenario would be to move a red blood cell inside a vein, or to animate the particle flow in a motor. You can also use Curve Guide to shape certain hair strands.
Ghi chú
You can also use the Particle Edit Mode to define a path.
Since you can animate curves as a soft body or any other usual way, you may build very complex animations while keeping great control and keeping the simulation time to a minimum.
The option "Đi Theo Đường Cong" does not work for particles. Instead you have to set "Vận Tốc Góc" ("Hệ thống hạt" tab) to "Xoáy" and leave the rotation constant (i.e. do not turn on "Năng Động").
A Curve Guide force affects all particles on the same layer, independently from their distance to the curve. If you have several guides in a layer, their fields add up to each other (the way you may have learned it in your physics course). But you can limit their influence radius by changing the Minimum Distance (see below).
A particle follows a Curve Guide during its lifetime, the velocity depends on its lifetime and the length of the path.
Ghi chú
The Curve Guide does not affect thân mềm (soft bodies).
Các Tùy Chọn (Options)#
- Tự Do (Free)
Fraction of particle life time, that is not used for the curve.
- Lũy Thừa Suy Giảm (Falloff Power)
This setting governs the strength of the guide between Min Distance and Max Distance. A falloff of 1 means a linear progression.
- Bổ Sung/Cộng (Additive)
If you use Additive, the speed of the particles is also evaluated depending on the falloff.
- Trọng Lượng (Weights)
Dùng trọng lượng của đường cong để tác động ảnh hưởng của hạt trên đường cong.
- Lượng Khóm Lại (Clumping Amount)
The particles come together at the end of the curve (1) or they drift apart (-1).
- Hình Dạng (Shape)
Defines the form in which the particles come together. +0.99: the particles meet at the end of the curve. 0: linear progression along the curve. -0.99: the particles meet at the beginning of the curve.
- Khoảng Cách Tối Thiểu (Min Distance)
The distance from the curve, up to where the force field is effective with full strength. If you have a falloff of 0, this parameter will have no effect, because the field is effective with full strength up to Max Distance (or the infinity). Min Distance is shown with a circle at the endpoints of the curve in the 3D Viewport.
- Khoảng Cách Tối Đa (Max Distance)
The maximum influence radius. Shown by an additional circle around the curve object.
Xoắn Vặn (Kink)#
Cảnh báo
This feature is broken in the current version, see Bug Report #46776.
- Thể Loại (Type)
Changes the shape that the particles can take.
- Không (None):
Nội Dung Cần Viết Thêm.
- Bím Tóc (Braid):
Bím Tóc.
- Uốn Quăn (Curl):
The radius of the influence depends on the distance of the curve to the emitter.
- Tỏa Tròn (Radial):
A three-dimensional, standing wave.
- Roll (Lăn):
A one-dimensional, standing wave.
- Xoay Chiều (Rotation):
Nội Dung Cần Viết Thêm.
- Sóng (Wave):
A two-dimensional, standing wave.
It is not so easy to describe the resulting shapes, so have a look at the example below.
Kink options of a curve guide. From left to right: Radial, Wave, Braid, Roll. Animation.#
- Axis (Trục)
Which axis to use for the offset.
- Tần Số (Frequency)
The frequency of the offset.
- Hình Dạng (Shape)
Chỉnh dịch chuyển về đầu/cuối.
- Biên Độ (Amplitude)
Biên độ của dịch chuyển.
Một Số Ví Dụ (Examples)#
Curve Guide force field.#