虾蟹傻蛋

两个图片实现翻书效果

Shader "Unlit/NewUnlitShader"
{
    Properties
    {
        _MainTex ("主纹理", 2D) = "white" {}
        _Angle("旋转角度",Range(0,180))= 0
        _NextTex("副纹理",2D)= "white" {} 
    }
    SubShader
    {   
        Pass
        {
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            // make fog work
            #include "UnityCG.cginc"

            struct a2v
            {
                float4 pos: POSITION;
                float2 uv : TEXCOORD0;
            };

            struct v2f
            {
                float4 svpos:SV_POSITION;
                float2 svuv : TEXCOORD0;
            };
            sampler2D _NextTex;

            v2f vert (a2v i)
            {

   
                v2f o;
                o.svpos=UnityObjectToClipPos(i.pos);
                o.svuv=i.uv;
                return o;
            }

            fixed4 frag (v2f u) : SV_Target
            {
                // sample the texture
                fixed4 tex = tex2D(_NextTex, u.svuv);
                return tex;
            }
            ENDCG
        }

        Pass
        {
            Cull off
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            // make fog work
            #include "UnityCG.cginc"

            struct a2v
            {
                float4 pos: POSITION;
                float2 uv : TEXCOORD0;
            };

            struct v2f
            {
                float4 svpos:SV_POSITION;
                float2 svuv : TEXCOORD0;
            };
            sampler2D _MainTex;
            float _Angle; 

            v2f vert (a2v i)
            {

                float sins;
                float coss;
                //球cos和sin的值
                sincos(radians(_Angle),sins,coss);

                //绕Z轴旋转的矩阵
                float4x4 rotateMatrix ={
                    coss,sins,0,0,
                    -sins,coss,0,0,
                    0,0,1,0,
                    0,0,0,1,
                };

                v2f o;
                i.pos.x-=float4(5,0,0,0);
                i.pos.y=sin(i.pos.x*0.5)*sins; //对y坐标做偏移使其变的波动
                i.pos=mul(rotateMatrix,i.pos);
                i.pos.x+=float4(5,0,0,0);
                o.svpos=UnityObjectToClipPos(i.pos);
                o.svuv=i.uv;
                return o;
            }

            fixed4 frag (v2f u) : SV_Target
            {
                // sample the texture
                fixed4 tex = tex2D(_MainTex, u.svuv);
                return tex;
            }
            ENDCG
        }

    }
}