150 lines
4.5 KiB
Plaintext
150 lines
4.5 KiB
Plaintext
Shader "BriarQueen/UI/Light Glow"
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{
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Properties
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{
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[PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}
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_Color ("Tint", Color) = (1, 1, 1, 1)
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_LightColor ("Light Color", Color) = (1, 0.78, 0.35, 1)
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_Intensity ("Intensity", Range(0, 8)) = 1.5
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_Radius ("Radius", Range(0, 1)) = 0.35
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_Falloff ("Falloff", Range(0.001, 1)) = 0.35
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_Softness ("Softness", Range(0.25, 6)) = 1.6
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_Center ("Center", Vector) = (0.5, 0.5, 0, 0)
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_FlickerStrength ("Flicker Strength", Range(0, 1)) = 0.08
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_FlickerSpeed ("Flicker Speed", Range(0, 20)) = 6
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_FlickerOffset ("Flicker Offset", Float) = 0
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_StencilComp ("Stencil Comparison", Float) = 8
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_Stencil ("Stencil ID", Float) = 0
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_StencilOp ("Stencil Operation", Float) = 0
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_StencilWriteMask ("Stencil Write Mask", Float) = 255
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_StencilReadMask ("Stencil Read Mask", Float) = 255
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_ColorMask ("Color Mask", Float) = 15
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[Toggle(UNITY_UI_ALPHACLIP)] _UseUIAlphaClip ("Use Alpha Clip", Float) = 0
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}
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SubShader
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{
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Tags
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{
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"Queue" = "Transparent"
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"IgnoreProjector" = "True"
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"RenderType" = "Transparent"
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"PreviewType" = "Plane"
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"CanUseSpriteAtlas" = "True"
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}
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Stencil
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{
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Ref [_Stencil]
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Comp [_StencilComp]
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Pass [_StencilOp]
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ReadMask [_StencilReadMask]
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WriteMask [_StencilWriteMask]
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}
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Cull Off
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Lighting Off
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ZWrite Off
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ZTest [unity_GUIZTestMode]
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Blend SrcAlpha One
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ColorMask [_ColorMask]
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Pass
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{
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Name "Default"
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CGPROGRAM
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#pragma vertex Vert
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#pragma fragment Frag
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#pragma target 2.0
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#include "UnityCG.cginc"
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#include "UnityUI.cginc"
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#pragma multi_compile_local _ UNITY_UI_CLIP_RECT
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#pragma multi_compile_local _ UNITY_UI_ALPHACLIP
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struct AppData
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{
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float4 vertex : POSITION;
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float4 color : COLOR;
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float2 texcoord : TEXCOORD0;
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UNITY_VERTEX_INPUT_INSTANCE_ID
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};
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struct Varyings
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{
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float4 vertex : SV_POSITION;
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fixed4 color : COLOR;
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float2 uv : TEXCOORD0;
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float4 worldPosition : TEXCOORD1;
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UNITY_VERTEX_OUTPUT_STEREO
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};
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sampler2D _MainTex;
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fixed4 _Color;
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fixed4 _TextureSampleAdd;
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float4 _ClipRect;
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fixed4 _LightColor;
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float _Intensity;
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float _Radius;
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float _Falloff;
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float _Softness;
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float4 _Center;
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float _FlickerStrength;
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float _FlickerSpeed;
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float _FlickerOffset;
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Varyings Vert(AppData input)
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{
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Varyings output;
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UNITY_SETUP_INSTANCE_ID(input);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(output);
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output.worldPosition = input.vertex;
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output.vertex = UnityObjectToClipPos(input.vertex);
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output.uv = input.texcoord;
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output.color = input.color * _Color;
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return output;
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}
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fixed4 Frag(Varyings input) : SV_Target
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{
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fixed4 sprite = tex2D(_MainTex, input.uv) + _TextureSampleAdd;
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float dist = distance(input.uv, _Center.xy);
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float glow = 1.0 - smoothstep(_Radius, _Radius + _Falloff, dist);
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glow = pow(saturate(glow), _Softness);
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float flickerA = sin((_Time.y + _FlickerOffset) * _FlickerSpeed);
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float flickerB = sin((_Time.y + _FlickerOffset) * _FlickerSpeed * 2.37 + 1.91);
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float flicker = 1.0 + ((flickerA * 0.65 + flickerB * 0.35) * _FlickerStrength);
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float alpha = glow * sprite.a * input.color.a * _LightColor.a * saturate(flicker);
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#ifdef UNITY_UI_CLIP_RECT
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alpha *= UnityGet2DClipping(input.worldPosition.xy, _ClipRect);
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#endif
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fixed4 color;
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color.rgb = _LightColor.rgb * _Intensity;
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color.a = alpha;
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#ifdef UNITY_UI_ALPHACLIP
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clip(color.a - 0.001);
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#endif
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return color;
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}
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ENDCG
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}
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}
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}
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