SimpleReflection

【SimpleReflection】

　　取法线的x、y作为reflection-map的uv。

Shader "Custom/SimpleReflection"

{

    Properties

    {

        _MainTex ("Base (RGB)", 2D) = "White" {}

        _ReflectionMap ("ReflectionMap", 2D) = "White" {}

    }

   SubShader

   {

          Lod

          Tags { "Queue" = "Transparent"}

        Pass

        {

            Blend SrcAlpha OneMinusSrcAlpha

            CGPROGRAM

            #pragma vertex Vert

            #pragma fragment Frag

            #include "UnityCG.cginc"

            sampler2D _MainTex;

            sampler2D _ReflectionMap;

            struct V2F

            {

                fixed4 pos:SV_POSITION;

                fixed2 uv:TEXCOORD0;

                fixed2 uv2:TEXCOORD1;

            };

            V2F Vert(appdata_full v)

            {

                V2F output;

                output.pos = mul (UNITY_MATRIX_MVP, v.vertex);

                output.uv = v.texcoord;

                output.uv2 = mul(UNITY_MATRIX_IT_MV, float4(v.normal, )).xy/+0.5;

                return output;

            }

            half4 Frag(V2F i):COLOR

            {

                return tex2D(_MainTex,i.uv) + tex2D(_ReflectionMap,i.uv2);

            }

            ENDCG

        }

   }

    FallBack "VertexLit"

}