动态背景Shader

Shader "Zon/movingBG" {Properties {_MainTex ("Albedo (RGB)", 2D) = "white" {}_F("幅度", range(1, 10)) = 1_Speed("速度", range(1,10)) = 2}SubShader {pass{CGPROGRAM#pragma vertex vert#pragma fragment frag#include "UnityCG.cginc"sampler2D _MainTex;float _F;float _Speed;struct v2f {float4 pos:POSITION;float2 uv:TEXCOORD0;};v2f vert(appdata_full v){v2f o;o.pos = mul(UNITY_MATRIX_MVP, v.vertex);o.uv = v.texcoord.xy;return o;}fixed4 frag (v2f IN) : COLOR{float2 uv = IN.uv;float offset_uv = 0.05 * sin(IN.uv * _F + _Time.x * _Speed);uv += offset_uv;fixed4 color_1 = tex2D(_MainTex, uv);uv = IN.uv;uv -= offset_uv * 2;fixed4 color_2 = tex2D(_MainTex, uv);fixed4 color = (color_1 + color_2)/2;return color;}ENDCG}}}