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mandarinx/ChromeKey.shader

Created December 12, 2017 15:05
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Chroma key shader
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ChromeKey.shader
// Shader created with Shader Forge v1.38
// Shader Forge (c) Neat Corporation / Joachim Holmer - http://www.acegikmo.com/shaderforge/
// Note: Manually altering this data may prevent you from opening it in Shader Forge
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Shader "Sprites/ChromaKey" {
Properties {
[PerRendererData]_MainTex ("MainTex", 2D) = "white" {}
_MaskCol ("MaskCol", Color) = (0,1,0,1)
_Sensitivity ("Sensitivity", Range(0, 1)) = 0
_Smoothing ("Smoothing", Range(0, 1)) = 0
[HideInInspector]_Cutoff ("Alpha cutoff", Range(0,1)) = 0.5
[MaterialToggle] PixelSnap ("Pixel snap", Float) = 0
_Stencil ("Stencil ID", Float) = 0
_StencilReadMask ("Stencil Read Mask", Float) = 255
_StencilWriteMask ("Stencil Write Mask", Float) = 255
_StencilComp ("Stencil Comparison", Float) = 8
_StencilOp ("Stencil Operation", Float) = 0
_StencilOpFail ("Stencil Fail Operation", Float) = 0
_StencilOpZFail ("Stencil Z-Fail Operation", Float) = 0
}
SubShader {
Tags {
"IgnoreProjector"="True"
"Queue"="Transparent"
"RenderType"="Transparent"
"CanUseSpriteAtlas"="True"
"PreviewType"="Plane"
}
Pass {
Name "FORWARD"
Tags {
"LightMode"="ForwardBase"
}
Blend SrcAlpha OneMinusSrcAlpha
Cull Off
ZWrite Off
Stencil {
Ref [_Stencil]
ReadMask [_StencilReadMask]
WriteMask [_StencilWriteMask]
Comp [_StencilComp]
Pass [_StencilOp]
Fail [_StencilOpFail]
ZFail [_StencilOpZFail]
}
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#define UNITY_PASS_FORWARDBASE
#pragma multi_compile _ PIXELSNAP_ON
#include "UnityCG.cginc"
#pragma multi_compile_fwdbase
#pragma only_renderers d3d9 d3d11 glcore gles gles3 metal
#pragma target 3.0
uniform sampler2D _MainTex; uniform float4 _MainTex_ST;
uniform float4 _MaskCol;
uniform float _Sensitivity;
uniform float _Smoothing;
struct VertexInput {
float4 vertex : POSITION;
float2 texcoord0 : TEXCOORD0;
};
struct VertexOutput {
float4 pos : SV_POSITION;
float2 uv0 : TEXCOORD0;
};
VertexOutput vert (VertexInput v) {
VertexOutput o = (VertexOutput)0;
o.uv0 = v.texcoord0;
o.pos = UnityObjectToClipPos( v.vertex );
#ifdef PIXELSNAP_ON
o.pos = UnityPixelSnap(o.pos);
#endif
return o;
}
float4 frag(VertexOutput i, float facing : VFACE) : COLOR {
float isFrontFace = ( facing >= 0 ? 1 : 0 );
float faceSign = ( facing >= 0 ? 1 : -1 );
////// Lighting:
////// Emissive:
float4 _MainTex_var = tex2D(_MainTex,TRANSFORM_TEX(i.uv0, _MainTex));
float node_5453 = 0.7132;
float node_4665 = 0.2989;
float node_8136 = 0.5866;
float node_2457 = 0.1145;
float node_1158 = (((node_4665*_MaskCol.r)+(node_8136*_MaskCol.g))+(node_2457*_MaskCol.b)); // maskY
float node_3204 = 0.5647;
float node_3099 = (((node_4665*_MainTex_var.r)+(node_8136*_MainTex_var.g))+(node_2457*_MainTex_var.b)); // Y
float node_1659 = smoothstep( _Sensitivity, (_Sensitivity+_Smoothing), distance(float2((node_5453*(_MaskCol.r-node_1158)),(node_3204*(_MaskCol.b-node_1158))),float2(((_MainTex_var.r-node_3099)*node_5453),((_MainTex_var.b-node_3099)*node_3204))) );
float3 emissive = (_MainTex_var.rgb*node_1659);
float3 finalColor = emissive;
return fixed4(finalColor,node_1659);
}
ENDCG
}
Pass {
Name "ShadowCaster"
Tags {
"LightMode"="ShadowCaster"
}
Offset 1, 1
Cull Off
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#define UNITY_PASS_SHADOWCASTER
#pragma multi_compile _ PIXELSNAP_ON
#include "UnityCG.cginc"
#include "Lighting.cginc"
#pragma fragmentoption ARB_precision_hint_fastest
#pragma multi_compile_shadowcaster
#pragma only_renderers d3d9 d3d11 glcore gles gles3 metal
#pragma target 3.0
struct VertexInput {
float4 vertex : POSITION;
};
struct VertexOutput {
V2F_SHADOW_CASTER;
};
VertexOutput vert (VertexInput v) {
VertexOutput o = (VertexOutput)0;
o.pos = UnityObjectToClipPos( v.vertex );
#ifdef PIXELSNAP_ON
o.pos = UnityPixelSnap(o.pos);
#endif
TRANSFER_SHADOW_CASTER(o)
return o;
}
float4 frag(VertexOutput i, float facing : VFACE) : COLOR {
float isFrontFace = ( facing >= 0 ? 1 : 0 );
float faceSign = ( facing >= 0 ? 1 : -1 );
SHADOW_CASTER_FRAGMENT(i)
}
ENDCG
}
}
FallBack "Diffuse"
CustomEditor "ShaderForgeMaterialInspector"
}
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