// Upgrade NOTE: replaced '_World2Object' with 'unity_WorldToObject'

// Upgrade NOTE: replaced '_World2Object' with 'unity_WorldToObject'

Shader "Custom/RadarWave" {

    Properties {

        _Color ("Color", Color) = (,,,)

        _MainTex ("Albedo (RGB)", 2D) = "white" {}

        _Glossiness ("Smoothness", Range(,)) = 0.5

        _Metallic ("Metallic", Range(,)) = 0.0

        _TransVal("Transparency Value", Range(,)) = 0.5

        _StripWidth("Strip Width", Range(0.1,)) = 0.2

        _Speed("Speed", Range(,)) =

    }

    SubShader {

        Tags { "RenderType"="Opaque" "Queue" = "Transparent" }

        LOD

        //Cull Off//关闭背面裁剪

        //Lighting Off//此设置在surface shader中不起作用，貌似是在Unlit Shader中使用的

        //ZWrite On

        //ZTest On

        Blend SrcAlpha OneMinusSrcAlpha

        CGPROGRAM

        // Physically based Standard lighting model, and enable shadows on all light types

        //#pragma surface surf Standard fullforwardshadows alpha vertex:vert

        #pragma surface surf NoLightModel fullforwardshadows alpha vertex:vert

        // Use shader model 3.0 target, to get nicer looking lighting

        #pragma target 3.0

        sampler2D _MainTex;

        struct Input {

            float2 uv_MainTex;

            float4 modelPos_;

        };

        half _Glossiness;

        half _Metallic;

        half _TransVal;

        half _StripWidth;

        half _Speed;

        fixed4 _Color;

        // Add instancing support for this shader. You need to check 'Enable Instancing' on materials that use the shader.

        // See https://docs.unity3d.com/Manual/GPUInstancing.html for more information about instancing.

        // #pragma instancing_options assumeuniformscaling

        UNITY_INSTANCING_CBUFFER_START(Props)

            // put more per-instance properties here

        UNITY_INSTANCING_CBUFFER_END

        void surf(Input IN, inout SurfaceOutput o) {

            // Albedo comes from a texture tinted by color

            fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;

            o.Albedo = c.rgb;

            //float4 tmp = mul(unity_WorldToObject, IN.modelPos_);

            if (fmod(floor((IN.modelPos_.z-_Time.y*_Speed)/ _StripWidth),)!=)

            {

                //clip(-1);

                discard;

            }

            //o.Alpha = c.a;

            o.Alpha = _TransVal;

        }

        void vert(inout appdata_full v, out Input o)

        {

            UNITY_INITIALIZE_OUTPUT(Input, o);

            o.modelPos_ = v.vertex;

        }

        //命名规则：Lighting接#pragma suface之后起的名字

        //lightDir :点到光源的单位向量   viewDir:点到摄像机的单位向量   atten:衰减系数

        float4 LightingNoLightModel(SurfaceOutput s, float3 lightDir, half3 viewDir, half atten)

        {

            float4 c;

            c.rgb = s.Albedo;

            c.a = s.Alpha;

            return c;

        }

        ENDCG

    }

    FallBack "Diffuse"

}