How to realize the effect of Writing on screen by unity

This article mainly introduces unity how to achieve the effect of writing on the screen, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

The details are as follows

First create a RawImage, then add a LineRenderer component to the picture, then create a shader, change the Shader of the shader to Particles/Additive, drag the shader to Materials/Element 0 of the LineRenderer component, and finally drag the code to the empty object. The Target of the code is RawImage, and the following code

Using System.Collections;using System.Collections.Generic;using UnityEngine;public class huaxian: MonoBehaviour {private GameObject clone;private LineRenderer line;int ibank / with LineRender object public GameObject target;void Start () {Debug.Log ("Please start writing");} / / Update is called once per frame void Update () {if (Input.GetMouseButtonDown (0)) {/ / instantiate object clone = (GameObject) Instantiate (target, target.transform.position, Quaternion.identity) / / get the LineRender components on the object line = clone.GetComponent (); / / set the start and end colors line.SetColors (Color.red, Color.blue); / / set the width of the start and end line.SetWidth (0.2f, 0.1f); / / count I = 0;} if (Input.GetMouseButton (0)) {/ / detect each frame, the longer you press the mouse, the more iComplete + / / set the number of vertices line.SetVertexCount (I); / / set the vertex position (index of vertices, convert the screen coordinates of mouse clicks into world coordinates) line.SetPosition (I-1, Camera.main.ScreenToWorldPoint (new Vector3 (Input.mousePosition.x, Input.mousePosition.y, 15));}

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