时间:2021-10-27 09:15:55 | 栏目:.NET代码 | 点击:次
本文实例为大家分享了UnityShader百叶窗展示的具体代码,供大家参考,具体内容如下
shader实现以上百叶窗效果,主要通过shader实现C#只是做开关控制
看到一篇文章弄的比较复杂,觉得可以都通过shader来实现,就动手了。
shader定义了2张texture,自己随便找2张图片拖进去就行。
Shader "Unlit/NewUnlitShader" { Properties { _MainTex ("Texture", 2D) = "white" {} _MainTex2 ("Texture2", 2D) = "white" {} _StartFlag("开始标记", float) = 0 _SpeedFactor("速度",Range(0.01,10)) = 0.1 _StartTime("时间初始标记,不要手动设置",float) = 1 _Column("百叶窗的列数",float ) = 5 } SubShader { Tags { "RenderType"="Opaque" } LOD 100 Pass { CGPROGRAM #pragma vertex vert #pragma fragment frag // make fog work #pragma multi_compile_fog #include "UnityCG.cginc" struct appdata { float4 vertex : POSITION; float2 uv : TEXCOORD0; }; struct v2f { float2 uv : TEXCOORD0; float4 vertex : SV_POSITION; }; sampler2D _MainTex; float4 _MainTex_ST; sampler2D _MainTex2; float4 _MainTex2_ST; float _StartFlag; float _Column; float _SpeedFactor; float _StartTime; v2f vert (appdata v) { v2f o; o.vertex = UnityObjectToClipPos(v.vertex); o.uv = TRANSFORM_TEX(v.uv, _MainTex); return o; } fixed4 frag (v2f i) : SV_Target { fixed4 col = 0; //_StartFlag 通过C#监听键盘事件,设置为1,作为开始动画的标记 //step(a,b) => if(b>=a) return 1 else return 0 //i.uv.x % (1/_Column) i.uv.x范围是0-1,分成_Column份 每份(1/_Column) fixed result = _StartFlag * step( i.uv.x % (1/_Column) ,(_Time.y - _StartTime) * _SpeedFactor ); if( result == 0 ) { col = tex2D(_MainTex, i.uv); } else { col = tex2D(_MainTex2, i.uv); } return col; } ENDCG } } }
C#控制开关,点击键盘任意按键。挂到panel上
using System.Collections; using System.Collections.Generic; using UnityEngine; public class baiyechuang : MonoBehaviour { // Use this for initialization Material mat; MeshRenderer meshRen; void Start () { meshRen = this.GetComponent<MeshRenderer> (); print (meshRen); mat = meshRen.material; print (mat); } void OnGUI() { if (Input.anyKeyDown) { Event e = Event.current; if (e.isMouse) { Debug.Log(e.button); } if (e.isKey) { if (e.keyCode == KeyCode.None) return; Debug.Log(e.keyCode); mat.SetFloat ("_StartTime", Time.timeSinceLevelLoad); mat.SetFloat ("_StartFlag", 1); } } } }