User:Baozhenliang/MosaicVF

MosaicVF.shader 马赛克

Shader "Game/Effect/MosaicVF" {
Properties {
	_MainTex ("Base (RGB)", 2D) = "white" {}
	_MosaicSize("MosaicSize", int)=5
}

SubShader {
	Tags { "RenderType"="Opaque" }
	LOD 100
	
	Pass {  
		CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag
		
			
			#include "UnityCG.cginc"

			struct appdata_t {
				float4 vertex : POSITION;
				float2 texcoord : TEXCOORD0;
				
			};

			struct v2f {
				float4 vertex : SV_POSITION;
				half2 texcoord : TEXCOORD0;
			
			
			};

			sampler2D _MainTex;
			float4 _MainTex_ST;
			half4 _MainTex_TexelSize;
			int _MosaicSize;
			v2f vert (appdata_t v)
			{
				v2f o;
				o.vertex = mul(UNITY_MATRIX_MVP, v.vertex);
				o.texcoord = TRANSFORM_TEX(v.texcoord, _MainTex);
				
				return o;
			}
			
			fixed4 frag (v2f i) : SV_Target
			{
				float2 uv = (i.texcoord*_MainTex_TexelSize.zw) ;
				uv = floor(uv/_MosaicSize)*_MosaicSize;
				i.texcoord =uv*_MainTex_TexelSize.xy;
				fixed4 col = tex2D(_MainTex, i.texcoord);
			
				UNITY_OPAQUE_ALPHA(col.a);
			
				return col;
			}
		ENDCG
	}
}
}