Question

我正在使用线条渲染器来创建水果忍者风格的滑动效果。但是它没有用.Line应该跟随鼠标位置，但它没有这样做。这是代码。请帮我解决这个问题。并且此脚本附加到位于（0,0,1）的游戏对象行（空）。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class LineFOllow : MonoBehaviour {
    int vertexcount =0;
    bool mousedown = false;
    private LineRenderer line;

    void Start () {
        line = GetComponent<LineRenderer>();
    }

    // Update is called once per frame
    void Update () {
        if (Input.GetMouseButtonDown(0)) // gets called when mouse is clicked
        {
            mousedown = true;
        }

        if (mousedown)
        { 
            Debug.Log("called");
            line.positionCount = vertexcount+1;
            Vector3 mousepos = Camera.main.ScreenToWorldPoint(Input.mousePosition);

            line.SetPosition(vertexcount, mousepos);
            vertexcount++;
        }
        if (Input.GetMouseButtonUp(0))// gets called when mouse is released
        {
            vertexcount = 0;
            line.positionCount = 0;
            mousedown = false;
        }
    }
}

Answer 1

为linerender启用世界空间坐标。

Answer 2

在您的情况下，我认为最好使用TrailRenderer。

private TrailRenderer trail;
public float depth;
void Start()
{
    depth = 10;
    trail = GetComponent<TrailRenderer>();
}       
void Update()
{
    if (Input.GetMouseButton(0))
    {                      
        Vector3 mousepos = new Vector3(Input.mousePosition.x, Input.mousePosition.y, depth);
        Vector3 position = Camera.main.ScreenToWorldPoint(mousepos);
        trail.transform.position = position;
    }
}

更改Time组件上的MinVertexDistance，TrailRenderer（和其他）属性，以获得所需的效果。

线渲染器未按预期工作？

2 个答案: