Shader "UI/UiObscure"
{
Properties
{
_Radius("Radius", Range(1, 255)) = 1
_MainTex("Tint Color (RGB)", 2D) = "white" {}
_Interval("Blur Nuance",Range(0.1, 100)) = 1
[HideInInspector][Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp ("Stencil Comparison", Float) = 8
[HideInInspector] _Stencil ("Stencil ID", Float) = 0
[HideInInspector][Enum(UnityEngine.Rendering.StencilOp)] _StencilOp ("Stencil Operation", Float) = 0
[HideInInspector] _StencilWriteMask ("Stencil Write Mask", Float) = 255
[HideInInspector] _StencilReadMask ("Stencil Read Mask", Float) = 255
[HideInInspector] _ColorMask ("Color Mask", Float) = 15
[Toggle(UNITY_UI_ALPHACLIP)] _UseUIAlphaClip ("Use Alpha Clip", Float) = 0
// Outline properties are drawn via custom editor.
[HideInInspector] _OutlineWidth("Outline Width", Range(0,8)) = 3.0
[HideInInspector] _OutlineColor("Outline Color", Color) = (1,1,0,1)
[HideInInspector] _OutlineReferenceTexWidth("Reference Texture Width", Int) = 1024
[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
}
Category
{
Tags{ "Queue" = "Transparent" "IgnoreProjector" = "True" "RenderType" = "Opaque" }
SubShader
{
Stencil
{
Ref [_Stencil]
Comp [_StencilComp]
Pass [_StencilOp]
ReadMask [_StencilReadMask]
WriteMask [_StencilWriteMask]
}
Cull Off
Lighting Off
ZWrite Off
ZTest [unity_GUIZTestMode]
Fog { Mode Off }
Blend One OneMinusSrcAlpha
ColorMask [_ColorMask]
GrabPass
{
Tags{ "LightMode" = "Always" }
}
Pass
{
Tags{ "LightMode" = "Always" }
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma fragmentoption ARB_precision_hint_fastest
#include "UnityCG.cginc"
struct appdata_t
{
float4 vertex : POSITION;
float2 texcoord: TEXCOORD0;
};
struct v2f
{
float4 vertex : POSITION;
float4 uvgrab : TEXCOORD0;
};
v2f vert(appdata_t v)
{
v2f o;
o.vertex = UnityObjectToClipPos(v.vertex);
#if UNITY_UV_STARTS_AT_TOP
float scale = -1.0;
#else
float scale = 1.0;
#endif
o.uvgrab.xy = (float2(o.vertex.x, o.vertex.y*scale) + o.vertex.w) * 0.5;
o.uvgrab.zw = o.vertex.zw;
return o;
}
sampler2D _GrabTexture;
float4 _GrabTexture_TexelSize;
float _Radius;
float _Interval;
half4 frag(v2f i) : COLOR
{
half4 sum = half4(0,0,0,0);
#define GRABXYPIXEL(kernelx, kernely) tex2Dproj( _GrabTexture, UNITY_PROJ_COORD(float4(i.uvgrab.x + _GrabTexture_TexelSize.x * kernelx, i.uvgrab.y + _GrabTexture_TexelSize.y * kernely, i.uvgrab.z, i.uvgrab.w)))
sum += GRABXYPIXEL(0.0, 0.0);
int measurments = 1;
for (float range = _Interval; range <= _Radius; range += _Interval)
{
sum += GRABXYPIXEL(range, range);
sum += GRABXYPIXEL(range, -range);
sum += GRABXYPIXEL(-range, range);
sum += GRABXYPIXEL(-range, -range);
measurments += 4;
}
return sum / measurments;
}
ENDCG
}
GrabPass
{
Tags{ "LightMode" = "Always" }
}
Pass
{
Tags{ "LightMode" = "Always" }
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma fragmentoption ARB_precision_hint_fastest
#include "UnityCG.cginc"
struct appdata_t
{
float4 vertex : POSITION;
float2 texcoord: TEXCOORD0;
};
struct v2f
{
float4 vertex : POSITION;
float4 uvgrab : TEXCOORD0;
};
v2f vert(appdata_t v)
{
v2f o;
o.vertex = UnityObjectToClipPos(v.vertex);
#if UNITY_UV_STARTS_AT_TOP
float scale = -1.0;
#else
float scale = 1.0;
#endif
o.uvgrab.xy = (float2(o.vertex.x, o.vertex.y*scale) + o.vertex.w) * 0.5;
o.uvgrab.zw = o.vertex.zw;
return o;
}
sampler2D _GrabTexture;
float4 _GrabTexture_TexelSize;
float _Radius;
half4 frag(v2f i) : COLOR
{
half4 sum = half4(0,0,0,0);
float radius = 1.41421356237 * _Radius;
#define GRABXYPIXEL(kernelx, kernely) tex2Dproj( _GrabTexture, UNITY_PROJ_COORD(float4(i.uvgrab.x + _GrabTexture_TexelSize.x * kernelx, i.uvgrab.y + _GrabTexture_TexelSize.y * kernely, i.uvgrab.z, i.uvgrab.w)))
sum += GRABXYPIXEL(0.0, 0.0);
int measurments = 1;
for (float range = 1.41421356237f; range <= radius * 1.41; range += 1.41421356237f)
{
sum += GRABXYPIXEL(range, 0);
sum += GRABXYPIXEL(-range, 0);
sum += GRABXYPIXEL(0, range);
sum += GRABXYPIXEL(0, -range);
measurments += 4;
}
return sum / measurments;
}
ENDCG
}
}
}
}