init

Runtime/VLC for Unity/Misc/BackgroundKeyShader.shader

@@ -0,0 +1,58 @@
+// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
+
+Shader "Custom/BackgroundKeyShader" {
+	Properties {
+		_MainTex ("Base (RGB)", 2D) = "white" {}
+		_ColorKey ("Color Key", Color) = (0,0,0,1)
+		_ColorSensitivity ("Color Sensitivity", Float) = 0.6 
+	}
+	SubShader {
+		Pass {
+			Tags { "RenderType"="Opaque" }
+			LOD 200
+		
+			CGPROGRAM
+
+			#pragma vertex VertexShaderFunction
+			#pragma fragment FragmentShaderFunction
+		
+			#include "UnityCG.cginc"
+
+			struct VertexData{
+				float4 position : POSITION;
+				float2 uvs : TEXCOORD0;
+			};
+
+			struct VertexToFragment	{
+				float4 position : SV_POSITION;
+				float2 uvs : TEXCOORD0;
+			};
+
+			VertexToFragment VertexShaderFunction(VertexData input)	{
+				VertexToFragment result;
+				result.position = UnityObjectToClipPos (input.position);
+				result.uvs = input.uvs;
+				return result;
+			}
+		
+			sampler2D _MainTex;
+			float3 _ColorKey;
+			float _ColorSensitivity;
+
+			float4 FragmentShaderFunction(VertexToFragment input) : SV_Target	{
+				float4 color = tex2D(_MainTex, input.uvs);
+			
+				float R = abs(color.r - _ColorKey.r);
+				float G = abs(color.g - _ColorKey.g);
+				float B = abs(color.b - _ColorKey.b);
+
+				if (R < _ColorSensitivity && G < _ColorSensitivity && B < _ColorSensitivity){
+					return float4(0.0f, 0.0f, 0.0f, 0.0f);
+				}
+
+				return color;
+			}
+			ENDCG
+		}
+	}
+}