游戏运行时如何使用C#脚本修改网格 [英] How can I modify my mesh with a C# script while the game is running

问题描述

进入播放模式后，我正在尝试在Unity游戏运行时连续更改脚本.我制作了一个程序生成的网格，并为脚本分配了网格碰撞器，滤镜和渲染器组件.

I am trying to change my script continuously while the Unity game is running after I have entered play mode. I made a procedurally generated mesh and assigned a mesh collider, filter, and a renderer component to the script.

现在，我希望网格物体在游戏运行时改变高度.我认为可以在Update函数中完成此操作，但不确定如何实现.

Now I want the mesh to change heights while the game is running. I figure this would be done in the Update function but I am not sure how I would implement it.

这是我到目前为止所得到的:

Here's what I got so far:

void Start() 
{ 
    mesh = new Mesh(); 
    MeshFilter filter = gameObject.AddComponent<MeshFilter>(); 
    MeshRenderer render = gameObject.AddComponent<MeshRenderer>(); 
    GetComponent<MeshFilter>().mesh = mesh; 
    GetComponent<Renderer>().material = grassMat; 
    CreateShape(); 
    UpdateMesh(); 
} 

void UpdateMesh() 
{
    mesh.Clear(); 
    mesh.vertices = vertices; 
    mesh.triangles = triangles; 
    MeshCollider collider = gameObject.AddComponent<MeshCollider>(); 
    mesh.RecalculateNormals(); 
} 

推荐答案

由于示例代码并未真正完成，因此我将指出一些常见的可能错误:

Since the example code is not really complete, i´ll point you to some common possible errors:

• void根据帧速率调用每一帧的void Update()，以半固定帧速率调用void FixedUpdate()的每一帧.如果希望每个(固定)帧都发生一些事情，则应将代码放在其中.在您的示例中，您仅将方法命名为void UpdateMesh()，这并不意味着它在每个框架中都被调用:尚不清楚，如果在void UpdateMesh()中根本没有发生任何更改，则不清楚.例如，没有代码可以改变顶点的位置.

  from you posted code it´s not clear, if there are changes happening in void UpdateMesh() at all. For example there is no code which changes positions of vertices.

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