glitch

Shader "GUI/Glitch"
{
    Properties
    {
        _MainTex ("Base (RGB)", 2D) = "white" {}
    }

    SubShader
    {

        Pass
        {
                Ztest off Cull Off ZWrite Off Fog { Mode off }

                CGPROGRAM
                #pragma vertex vert_img
                #pragma fragment frag
                #pragma fragmentoption ARB_precision_hint_fastest
                #include "UnityCG.cginc"


                uniform sampler2D _MainTex;
                uniform float3 _Stats;

                inline float rand(float2 seed)
                {
                    return frac(sin(dot(seed * floor(_Time * _Stats.x), float2(127.1, 311.7))) * 1.123456);

                }

                struct v2f {
                    float4 pos : POSITION;
                    float2 uv : TEXCOORD0;
                };

                v2f vert( appdata_img v )
                {
                    v2f o;
                    o.pos = mul (UNITY_MATRIX_MVP, v.vertex);
                    o.uv = v.texcoord.xy;

                    return o;
                }


                half4 frag(v2f i) : COLOR
                 {
                    float2 rblock = rand(floor(i.uv * _Stats.y));
                    float displaceNoise = pow(rblock.x, 8.0) * pow(rblock.x, 3.0) - pow(rand(7.2341), 17.0) * _Stats.z;

                    float r = tex2D(_MainTex, i.uv).r;
                    float b = tex2D(_MainTex, i.uv - half2(displaceNoise * 0.05 * rand(13.0), 0.0)).b;
                    float g = tex2D(_MainTex, i.uv - half2(displaceNoise * 0.05 * rand(13.0), 0.0)).g;


                    half4 color = tex2D(_MainTex,  i.uv.xy);


                        color.r = r*1.2;
                        color.g = g;
                        color.b = b;


                    return color;

              }

            ENDCG
        }


    }

    FallBack off
}