Version: 2023.1
创建导航网格障碍物
Building OffMesh Links Automatically

Creating an OffMesh Link

OffMesh Links are used to create paths crossing outside the walkable navigation mesh surface. For example, jumping over a ditch or a fence, or opening a door before walking through it, can be all described as OffMesh links.

We’re going to add an OffMesh Link component to describe a jump from the upper platform to the ground.

  1. 首先创建两个圆柱体:__Game Object > 3D Object > Cylinder__。
  2. 可将圆柱体的比例设置为 (0.1, 0.5, 0.1) 以便于使用它们。
  3. 第一个圆柱体移动到上层平台的边缘,靠近导航网格表面。
  4. 第二个圆柱体放在地面上,靠近导航网格,在链接应着陆的位置。
  5. Select the cylinder on the left and add an OffMesh Link component to it. Choose Add Component from the inspector and choose Navigation > Off Mesh Link.
  6. Start 字段中分配最左侧的圆柱体,并在 End 字段中分配最右侧的圆柱体。

Now you have functioning OffMesh Link set up! If the path via the OffMesh link is shorter than via walking along the Navmesh, the OffMesh link will be used.

You can use any game object in the scene to hold the OffMesh link component, for example a fence prefab could contain the OffMesh link component. Similarly you can use any game object with a Transform as the start and end marker.

The NavMesh bake process can detect and create common jump-across and drop-down links automatically. Take a look at the Building OffMesh Links Automatically for more details.

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创建导航网格障碍物
Building OffMesh Links Automatically
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