Unity3d Shader动态表面效果着色器 .

动态表面效果着色器，做一做特效倒是比较合适，截图如下：

Shader "Effects/Plasma" {
Properties {
   _MainTex ("Base (RGB)", RECT) = "white" {}
   _ColorBand ("Base (RGB)", 2D) = "white" {}
}
SubShader {
ZTest Always Cull Off ZWrite Off
      Fog { Mode off }
   Pass {


CGPROGRAM
#pragma vertex vert_img
#pragma fragment fragSh
#pragma fragmentoption ARB_precision_hint_fastest
#include "UnityCG.cginc"
uniform samplerRECT _MainTex;
uniform sampler2D _ColorBand;
float4 fragSh (v2f_img i) : COLOR
{

   float2 ca = float2(0.2, 0.2);
   float2 cb = float2(0.7, 0.9);
   float da = distance(i.uv, ca);
   float db = distance(i.uv, cb);

   float c1 = sin(da * _CosTime.y * 16 + _Time.x);
   float c2 = cos(i.uv.x * 8 + _Time.z);
   float c3 = cos(db * 14) + _CosTime.x;
   float p = (c1 + c2 + c3) / 3;

   return tex2D(_ColorBand, float2(p, 0.5));
}
ENDCG
   }
}
Fallback off
}