use vertex shader in surface shader

ImageEffectBase.shader

Shader "Custom/ImageEffectBase" {
	Properties {
		_MainTex ("Base (RGB)", 2D) = "white" {}
	}
	CGINCLUDE
		#include "UnityCG.cginc"

		sampler2D _MainTex;
		half4 _MainTex_TexelSize;
			
		half4 frag(v2f_img i) : COLOR{
#if UNITY_UV_STARTS_AT_TOP
			if (_MainTex_TexelSize.y < 0) 
				i.uv.y = 1-i.uv.y;
#endif
			
			return tex2D(_MainTex, i.uv);
		}
	ENDCG
	
	SubShader {
		ZTest Always Cull Off ZWrite Off
		Fog { Mode off }

		pass{
			CGPROGRAM
			#pragma fragmentoption ARB_precision_hint_fastest
			#pragma vertex vert_img
			#pragma fragment frag
			ENDCG
		}
	} 
}

SurfaceVertex.shader

Shader "Custom/SurfVertexBase" {
	Properties {
		_MainTex("texture", 2D) = "white" {}
	}
	CGINCLUDE
		sampler2D _MainTex;
		struct Input {
			half4 vColor;
			half2 tex;
		};
		void vert (inout appdata_full v, out Input o){
			UNITY_INITIALIZE_OUTPUT(Input,o);
			o.vColor = v.color;
			o.tex = v.texcoord.xy;
		}
		void surf (Input IN, inout SurfaceOutput o) {
			o.Albedo = tex2D(_MainTex, IN.tex);
			o.Emission = IN.vColor;
		}
	ENDCG
	SubShader {
		Tags { "RenderType"="Opaque" }
		LOD 200
		CGPROGRAM
		#pragma surface surf Lambert vertex:vert noforwardadd
		ENDCG
	} 
	FallBack "Diffuse"
}

v2fBase.shader

Shader "Custom/v2fBase" {
	Properties {
		_Color ("color", Color) = (0.5,0.5,0.5,0.5)
		_MainTex ("texture", 2D) = "white" {}
	}

	CGINCLUDE
		#include "UnityCG.cginc"
		sampler2D _MainTex;
		fixed4 _Color;
		
		struct v2f {
			float4 pos : SV_POSITION;
			fixed4 color : COLOR;
			float2 texcoord : TEXCOORD0;
			float3 wPos : TEXCOORD1;
			float4 sPos : TEXCOORD2;
			float3 cPos : TEXCOORD3;
		};
 
		v2f vert (appdata_full v)
		{
			v2f o;
			o.pos = mul(UNITY_MATRIX_MVP, v.vertex);
			o.wPos = mul(_Object2World, v.vertex).xyz;
			o.sPos = ComputeScreenPos(o.pos);
			o.cPos = mul(_Object2World, half4(0,0,0,1));
			o.color = v.color;
			o.texcoord = v.texcoord;
			return o;
		}
			
		half4 frag (v2f i) : COLOR
		{
			return i.color * _Color * tex2D(_MainTex, i.texcoord);
		}
	ENDCG
	
	SubShader {
		Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" }
		Blend SrcAlpha OneMinusSrcAlpha
		AlphaTest Greater .01
		Cull Off Lighting Off ZWrite Off
		
		Pass {
			CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag
			#pragma fragmentoption ARB_precision_hint_fastest
			ENDCG 
		}
	}
}

・copy&paste.shader

//コピピペしたら、増やしていく。
Tags { "RenderType"="Opaque" }
Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" }

Blend SrcAlpha OneMinusSrcAlpha
Blend SrcAlpha One

v.vertex.xyz += tex3Dlod(_Tex3D, float4(v.vertex.xyz,0));

o.pos = mul(UNITY_MATRIX_MVP, v.vertex);
o.screenPos = ComputeScreenPos(o.pos);

half4 pos = mul(UNITY_MATRIX_MVP, v.vertex);
half2 sUV = pos.xy/pos.w/2+0.5;

float3 worldPosition = mul( _Object2World, float4( v.vertex.xyz, 1.0 ) ).xyz;
float3 worldNormal = mul( _Object2World, float4( v.normal, 0.0 ) ).xyz;

//カメラから見た法線方向
half3 vNormal = mul(UNITY_MATRIX_MVP, half4(v.normal,0));