[LearnShader] 알파 블렌드(Alpha blend)

 

알파 블랜딩 된 텍스쳐

Shader "Custom/AlphaBlend"
{
	Properties
	{
		_MainTex("Albedo (RGB)", 2D) = "white" {}
	}
		SubShader
	{
		Tags { "RenderType" = "Transparent" "Queue" = "Transparent"}

		cull off
		CGPROGRAM
		#pragma surface surf Lambert alpha:fade
		#pragma target 3.0

		sampler2D _MainTex;

		struct Input
		{
			float2 uv_MainTex;
		};

		void surf(Input IN, inout SurfaceOutput o)
		{
			fixed4 c = tex2D(_MainTex, IN.uv_MainTex);
			o.Albedo = c.rgb;
			o.Alpha = c.a;
		}
		ENDCG
	}
	FallBack "Legacy Shaders/Transparent/VertexLit"
}

 

 

+++

 

알파 테스팅과 컷오프 

 

Shader "Custom/AlphaBlend"
{
		Properties
	{
		_Color("Main Color", Color) = (1,1,1,1)
		_MainTex("Albedo (RGB)", 2D) = "white" {}
		_Cutoff("Alpha cutoff", Range(0, 1)) = 0.5
	}
	SubShader
	{
		Tags { "RenderType" = "Transparent" "Queue" = "AlphaTest"}

		CGPROGRAM
		#pragma surface surf Lambert alphatest:_Cutoff
		#pragma target 3.0

		sampler2D _MainTex;

		struct Input
		{
			float2 uv_MainTex;
		};
		void surf(Input IN, inout SurfaceOutput o)
		{
			fixed4 c = tex2D(_MainTex, IN.uv_MainTex);
			o.Albedo = c.rgb;
			o.Alpha = c.a;
		}
		ENDCG
	}
	FallBack "Legacy Shaders/Transparent/Cutout/VertexLit"
}