Motion Graphics Tracer Object

运动图形跟踪对象

Motion Graphics Tracer Object

运动图形跟踪对象

The Tracer creates splines internally, which lets Tracers be used in place of splines:

Tracer 在内部创建样条，用来代替样条:

• Generators such as the Sweep object above. 生成器，例如上面的 Sweep 对象

• Spline Effectors, etc. 样条效果器等

The Tracer traces the movement of particles or object vertices and creates splines from these paths. The Trace Object can also be converted to splines via the Make Editable command in the Object Manager’s Object menu. You can also simply interactively move the object to be traced in the editor view to create splines.

示踪跟踪运动的粒子或物体顶点，并创建这些路径的样条。跟踪对象也可以通过对象管理器的对象菜单中的 Make Editable 命令转换为样条线。您还可以简单地交互式地移动要在编辑器视图中跟踪的对象，以创建样条。

Example

例子

The Tracer is well-suited for creating fading tracks for moving objects. This is done as follows:

跟踪器非常适合为移动物体创建衰落轨迹。这是这样做的:

• Animate several objects you want traced (e.g., clones or particles) and link the corresponding Generator (e.g., Cloner object or Emitter) in the Tracer. 动画几个你想要跟踪的对象(例如，克隆或粒子) ，并在跟踪器中链接相应的生成器(例如，Cloner 对象或发射器)
• In the Tracer settings you can set 在跟踪器设置中，你可以设置Handle Cloners 处理复制人 to 到Intermediate Clones 中级克隆 or 或Clones from Clones 来自克隆的克隆 when used in conjunction with a Cloner object. This will record the path of each clone. 当与 Cloner 对象结合使用时。这将记录每个克隆的路径
• Set 预备Limit 限制 to 到From End 从头开始 and define an 定义一个Amount 金额 value fitting to the scene. This is all you have to do with regard to MoGraph. 符合现场情况的数值。这是所有你必须做的关于 MoGraph
• Place the Tracer, including a corresponding profile Spline (e.g., a 放置跟踪，包括相应的配置文件样条(例如，一个Circle 圆圈), into a ) ，转化为一个Sweep 打扫. This will generate the trail geometry. 。这将产生的线索几何
• To make the trail fade away in time, create a material with an active Alpha channel. Load a Gradient shader into 为了使痕迹及时消失，创建一个活跃的阿尔法通道材质。加载渐变着色器到Texture 纹理. Set 。设置Type 类型 to 到2D-V. Reverse the white and black gradient colors to produce a fading out effect (the trail color works best in the Luminance channel; the Color channel can be disabled): .反转白色和黑色渐变颜色来产生淡出效果(轨迹颜色在亮度通道中工作最好; 颜色通道可以被禁用) :