NewUnlitShader02.shader

Shader "NewUnlitShader02"
{
	Properties
	{
		_MainTex ("RenderTex", 2D) = "white" {}
		_DecalATex ("DecalATex", 2D) = "white" {}
		_DecalBTex ("DecalBTex", 2D) = "white" {}
	}
	SubShader
	{
		Tags { "RenderType"="Opaque" }
		//LOD 100

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

			struct appdata
			{
				float4 vertex : POSITION;
				float2 uv : TEXCOORD0;
			};

			struct v2f
			{
				float2 uv : TEXCOORD0;
				UNITY_FOG_COORDS(1)
				float4 vertex : SV_POSITION;
			};

			sampler2D _MainTex;
			float4 _MainTex_ST;
			//////////////////////////////paint
			//sampler2D _MainTex;
		sampler2D _DecalATex;
		sampler2D _DecalBTex;
			////////////////////////////////paint
			v2f vert (appdata v)
			{
				v2f o;
				o.vertex = mul(UNITY_MATRIX_MVP, v.vertex);
				o.uv = TRANSFORM_TEX(v.uv, _MainTex);
				UNITY_TRANSFER_FOG(o,o.vertex);
				return o;
			}
			
			fixed4 frag (v2f i) : SV_Target
			{
				// sample the texture
				fixed4 col = tex2D(_MainTex, i.uv);
				// apply fog
				UNITY_APPLY_FOG(i.fogCoord, col);
				///////////////GLSL
				float2 resolution=float2(512.0, 512.0);
				//float2 p =i.uv/resolution;
				//float2 p =i.uv;
				float2 p =i.uv/2;
				/////////////////////////座標を正規化し、0.0 〜 1.0 の範囲に収まるように変換する。
				p =float2(-p.x+0.5,-p.y+0.5)/2;
				p =float2(p.x+0.5,p.y+0.5);///////////sample_05.frag
				col = fixed4(p.x,p.y, 1.0, 1.0);
				///////////////GLSL

		    /////////paint
				float2 uv_Field = float2(p.x,p.y);
			float3 renderTexCol = tex2D (_MainTex, uv_Field).rrr;
			float3 decalACol = tex2D (_DecalATex, uv_Field).rgb;
			float3 decalBCol = tex2D (_DecalBTex, uv_Field).rgb;
			float3 dA=(decalACol*renderTexCol);
			float3 dB=(decalBCol*(1-renderTexCol));
			float3 albed=dA+dB;
			col = fixed4(albed.r,albed.g,albed.b,1.0)  ;
			///////paint end
				return col;
			}
			ENDCG
		}
	}
}