Shader "Custom/sonic1" {
Properties{
_MainTex("MainTex",2D) = "white"{}
_Frec("Frec",Range(0,1000)) = 100
_SPD("SPD",Float) = 0
_Seed("Seed",Float) = 0
}
SubShader{
Tags{"Queue" = "Transparent" "RenderType" = "Transparent"}
Blend SrcAlpha OneMinusSrcAlpha
Pass{
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#include "UnityCG.cginc"
struct appdata {
float4 vertex:POSITION;
float4 uv:TEXCOORD0;
};
struct v2f {
float4 pos:SV_POSITION;
float4 lpos:POSITION1;
float4 uv:TEXCOORD0;
};
float _Frec;
float _SPD;
float _Seed;
float rand(float2 co){
return frac(sin(dot(co.xy ,float2(12.9898,78.233))) * 43758.5453);
}
v2f vert(appdata v){
v2f o;
o.pos = UnityObjectToClipPos(v.vertex);
o.uv = v.uv;
return o;
}
sampler2D _MainTex;
float4 frag(v2f i) :SV_Target {
float ux = i.uv.x*_Frec;
float fux = frac(ux);
float id = trunc(ux);
float t = trunc(_Time.y*_SPD);
id += t;
float yaid = trunc(id*1000)/1000;
float ybid = trunc((id+1)*100000)/100000;
float ya = rand(float2(yaid/1000,_Seed));
float yb = rand(float2(ybid/1000,_Seed));
if(i.uv.y <= lerp(ya,yb,fux)){
return float4(0,0,0,1);
}
return float4(1,1,1,1);
}
ENDCG
}//Pass
}//SubShader
FallBack "Diffuse"
}
