103-Shader__UI-NewUnlitShader.shader.txt

Shader "UI/#NAME#"
{
// this is based on this: https://gist.github.com/Kink3d/7df109ad68cf0cd00fc950a09d9bdaaf
// but with the dithering stuff removed. So it's a good base UI if you want to do something custom 
// but with most of the existing UI functionality built in

    Properties
    {
        [PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}
        _Color ("Tint", Color) = (1,1,1,1)
     
        _StencilComp ("Stencil Comparison", Float) = 8
        _Stencil ("Stencil ID", Float) = 0
        _StencilOp ("Stencil Operation", Float) = 0
        _StencilWriteMask ("Stencil Write Mask", Float) = 255
        _StencilReadMask ("Stencil Read Mask", Float) = 255
 
        _ColorMask ("Color Mask", Float) = 15
    }
 
    SubShader
    {
        Tags
        {
            "Queue"="Transparent"
            "IgnoreProjector"="True"
            "RenderType"="Transparent"
            "PreviewType"="Plane"
            "CanUseSpriteAtlas"="True"
        }
     
        Stencil
        {
            Ref [_Stencil]
            Comp [_StencilComp]
            Pass [_StencilOp]
            ReadMask [_StencilReadMask]
            WriteMask [_StencilWriteMask]
        }
 
        Cull Off
        Lighting Off
        ZWrite Off
        ZTest [unity_GUIZTestMode]
        Blend SrcAlpha OneMinusSrcAlpha
        ColorMask [_ColorMask]
 
        Pass
        {
        CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
 
            #include "UnityCG.cginc"
            #include "UnityUI.cginc"
         
            struct appdata_t
            {
                float4 vertex   : POSITION;
                float4 color    : COLOR;
                float2 texcoord : TEXCOORD0;
            };
 
            struct v2f
            {
                float4 vertex   : SV_POSITION;
                fixed4 color    : COLOR;
                half2 texcoord  : TEXCOORD0;
                float4 worldPosition : TEXCOORD1;
            };
         
            fixed4 _Color;
            fixed4 _TextureSampleAdd;
 
            bool _UseClipRect;
            float4 _ClipRect;
 
            bool _UseAlphaClip;
 
            v2f vert(appdata_t IN)
            {
                v2f OUT;
                OUT.worldPosition = IN.vertex;
                OUT.vertex = mul(UNITY_MATRIX_MVP, OUT.worldPosition);
 
                OUT.texcoord = IN.texcoord;
             
                #ifdef UNITY_HALF_TEXEL_OFFSET
                OUT.vertex.xy += (_ScreenParams.zw-1.0)*float2(-1,1);
                #endif
             
                OUT.color = IN.color * _Color;
                return OUT;
            }
 
            sampler2D _MainTex;
 
            fixed4 frag(v2f IN) : SV_Target
            {
                half4 color = (tex2D(_MainTex, IN.texcoord) + _TextureSampleAdd) * IN.color;
 
                if (_UseClipRect)
                    color *= UnityGet2DClipping(IN.worldPosition.xy, _ClipRect);
             
                if (_UseAlphaClip)
                    clip (color.a - 0.001);
 
                return color;
            }
        ENDCG
        }
    }
}