如何在A-Frame中添加导航路径？
我尝试了各种 A 形框架的方法，但是，我无法找到一个好的方法来制作一条路径，使头像无法走出该路径，也无法穿过场景中存在的墙壁和物体。我尝试使用搅拌机制作自己的导航网格，但也许我错过了一些东西。
所以请帮我解决 A-Frame 中的问题!!
<a-scene
inspector-plugin-recast
renderer="antialias: true;
colorManagement: true;
sortObjects: true;
physicallyCorrectLights: true;
highRefreshRate: true;"
>
<a-assets>
<a-asset-item id="rig" src="./navmesh.gltf"></a-asset-item>
</a-assets>
<a-entity
id="rig"
movement-controls="speed:0.15; constrainToNavMesh: true"
position="0 0 5"
>
<a-entity
camera
position="0 1.6 0"
look-controls="pointerLockEnabled: true"
>
<a-cursor nav-pointer raycaster="objects: [nav-mesh]"></a-cursor>
</a-entity>
</a-entity>
<a-entity gltf-model="#rig" nav-mesh visible="false"></a-entity>
</a-scene>
navmesh.gltf 是为相机提供导航路径，以便相机无法超出此网格。我使用生成的这个 gltf
aframe-inspector-plugin-recast.js。
所以，它可以工作，但是当我制作自己的导航网格并添加它时，要么浏览器没有加载场景，要么我的相机总是在场景之外。
I tried various ways A-Frame but, I can't able to get a good way to make a path so that avatar can't go outside that and also can't pass through walls and objects which are there in the scene. I tried to make my own navmesh using blender but maybe I'm missing something.
So please help me regarding this in A-Frame !!
<a-scene
inspector-plugin-recast
renderer="antialias: true;
colorManagement: true;
sortObjects: true;
physicallyCorrectLights: true;
highRefreshRate: true;"
>
<a-assets>
<a-asset-item id="rig" src="./navmesh.gltf"></a-asset-item>
</a-assets>
<a-entity
id="rig"
movement-controls="speed:0.15; constrainToNavMesh: true"
position="0 0 5"
>
<a-entity
camera
position="0 1.6 0"
look-controls="pointerLockEnabled: true"
>
<a-cursor nav-pointer raycaster="objects: [nav-mesh]"></a-cursor>
</a-entity>
</a-entity>
<a-entity gltf-model="#rig" nav-mesh visible="false"></a-entity>
</a-scene>
navmesh.gltf is to give the navigation path to the camera so that is could not go outside this mesh. This gltf i've generated by using
aframe-inspector-plugin-recast.js.
So, it's working but when I'm making my own navmesh and adding it then, either browser didn't load the scene or my camera always goes outside it.
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这是关于 navmesh 概念的很好的教程：
https://www.youtube.com/watch?v=Y52czIft9OU
其他非更简单的创建类似于 navmesh 的系统的方法是使用 Ammo.js 等物理系统，该系统广泛用于 AR/VR 游戏开发。
您基本上会在竞技场周围创建墙壁，以便化身不会超出它。您可以设置 ammo-body 将墙壁设为静态，将头像设为动态。
虽然碰撞逻辑需要一个 collider，但有您可以研究并测试许多不同的方法，找出最适合您的方法。
This is a good tutorial on the concept of navmesh:
https://www.youtube.com/watch?v=Y52czIft9OU
Other non simpler ways to create a system similar to navmesh is by using physics systems like Ammo.js which is used widely for game development in AR/VR.
You would basically create walls around your arena so that the avatar does not go beyond it. You can set the ammo-body for the walls to static and the avatar to dynamic.
While the collision logic would need a collider, there are many different ones you can research and test out what works for you the best.
提问者确实需要一个导航网格。但是，对于那些寻找标题问题（如何使某物沿着预定路径移动）答案的人，请参阅此存储库以及包含的
follow-path组件：https://github.com/kylebakerio/aframe-curve-component
The question asker really does need a nav mesh. However, for those looking for an answer to the headline question (how to make something move along a predetermined path), see this repo, and the included
follow-pathcomponent:https://github.com/kylebakerio/aframe-curve-component