Unity Shader Example 14 (平面切割图片 )

Shader "Test"
{
	Properties
	{
		_MainTex ("Texture", 2D) = "white" {}
		_PureColor ("Pure Color", Color) = (1,1,1,1)
		_Plan("Plan", Vector) = (1, 1, 1, 0)
		_MaxDist("Alpha Dist", float) = 0

		//_DissolveTex ("Dissolve Texture", 2D) = "white" {}
		//_Percent ("Percent", Range(0.0, 1.0)) = 0.0
	}
	SubShader
	{
		Tags { "Queue" = "Transparent" "RenderType" = "Transparent" }
		Blend SrcAlpha OneMinusSrcAlpha

		Pass
		{
			CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag
			
			#include "UnityCG.cginc"

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

			struct v2f
			{
				float2 uv : TEXCOORD0;
				float4 vertex : SV_POSITION;
				float  dot : TEXCOORD1;
				//float  dist : TEXCOORD2;
			};

			sampler2D _MainTex;
			float4 _MainTex_ST;

			//sampler2D _DissolveTex;
			//float4 _DissolveTex_ST;
			//fixed _Percent;


			fixed4 _PureColor;
			float4 _Plan;
			float _MaxDist;

			// uniform float4x4 _Objec