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Shader "Bakery/Example shader with Alpha Meta Pass"
{
Properties
{
_MainTex ("Albedo", 2D) = "white" { }
_BumpMap ("Normal map", 2D) = "bump" { }
[HideInInspector] BAKERY_META_ALPHA_ENABLE ("Enable Bakery alpha meta pass", Float) = 1.0
}
SubShader
{
Tags {"RenderType"="Transparent"}
Pass
{
CGPROGRAM
#pragma vertex vs
#pragma fragment ps
#include "UnityCG.cginc"
sampler2D _MainTex, _BumpMap;
struct pi
{
float4 Position : SV_POSITION;
float2 TexCoords : TEXCOORD0;
float2 TexCoords2 : TEXCOORD1;
};
void vs(in appdata_full IN, out pi OUT)
{
OUT.Position = UnityObjectToClipPos(IN.vertex);
OUT.TexCoords = IN.texcoord.xy;
OUT.TexCoords2 = IN.texcoord1.xy * unity_LightmapST.xy + unity_LightmapST.zw;
}
float4 ps( in pi IN ) : COLOR
{
float4 tex = tex2D(_MainTex, IN.TexCoords);
float3 lm = DecodeLightmap(UNITY_SAMPLE_TEX2D(unity_Lightmap, IN.TexCoords2));
tex.rgb *= lm;
float2 alpha2 = cos(abs(frac(IN.TexCoords*10)*2-1));
float alpha = alpha2.x * alpha2.y;
clip(alpha-0.5);
return tex;
}
ENDCG
}
Pass
{
// Alpha map enabled Bakery-specific meta pass
Name "META_BAKERY"
Tags {"LightMode"="Meta"}
Cull Off
CGPROGRAM
#include "UnityStandardMeta.cginc"
// Include Bakery meta pass
#include "../../BakeryMetaPass.cginc"
float4 frag_customMeta (v2f_bakeryMeta i): SV_Target
{
UnityMetaInput o;
UNITY_INITIALIZE_OUTPUT(UnityMetaInput, o);
// Output custom alpha to Bakery
if (unity_MetaFragmentControl.w)
{
// Calculate custom alpha
float2 alpha2 = cos(abs(frac(i.uv*10)*2-1));
float alpha = alpha2.x * alpha2.y;
// Output
return alpha;
}
// Regular Unity meta pass
o.Albedo = tex2D(_MainTex, i.uv);
return UnityMetaFragment(o);
}
// Must use vert_bakerymt vertex shader
#pragma vertex vert_bakerymt
#pragma fragment frag_customMeta
ENDCG
}
}
}
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