107 lines
3.4 KiB
GLSL
107 lines
3.4 KiB
GLSL
Shader "PicoDebugger/UIGradationOutline"
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{
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Properties
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{
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_MainTex ("Texture", 2D) = "white" {}
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_Color1("Color 1", color) = (0.376, 0.12, 0.95)
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_Color2("Color 2", color) = (.6, 0.35, 0.75)
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_Color3("Color 3", color) = (0.17, 0.17, 0.51)
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_Radius("radius", Range(0, 1)) = 0.5
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_Alpha("Alpha", Range(0, 1)) = 0.0
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[HideInInspector]_TouchPos ("TouchPos", Vector) = (1.0, 1.0, 1.0, 1.0)
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}
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SubShader
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{
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Tags { "RenderType"="Transparent" "Queue"="Transparent-10" }
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LOD 200
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Blend SrcAlpha OneMinusSrcAlpha
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ZWrite Off
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Pass
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{
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#include "UnityCG.cginc"
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#define NUM_POINTS 4
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struct appdata
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{
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float4 vertex : POSITION;
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float2 uv : TEXCOORD0;
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};
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struct v2f
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{
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float2 uv : TEXCOORD0;
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float4 vertex : SV_POSITION;
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};
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sampler2D _MainTex;
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float4 _MainTex_ST;
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float3 _Color1;
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float3 _Color2;
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float3 _Color3;
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float _Alpha;
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float _Radius;
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float4 _TouchPos;
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v2f vert (appdata v)
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{
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v2f o;
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o.vertex = UnityObjectToClipPos(v.vertex);
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o.uv = v.uv;
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return o;
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}
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float4 frag (v2f i) : SV_Target
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{
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float2 uv = i.uv;
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float2 st = i.uv - 0.5;
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float radio = _TouchPos.z / _TouchPos.w;
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st = float2(st.x * max(radio, 1.0), st.y / min(radio, 1.0));
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_TouchPos.xy = float2(_TouchPos.x * max(radio, 1.0), _TouchPos.y / min(radio, 1.0));
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float d = distance(st, _TouchPos.xy);
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float attenuation = smoothstep(0.33+_Radius*radio, -0.83, d);
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uv.x *= max(radio, 1.0);
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uv.y /= min(radio, 1.0);
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float t = _Time.y * 0.1+100;
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float e = 2.0;
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float2 pointPos[NUM_POINTS];
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pointPos[0] = (0.5 + 0.5 * float2(cos(-t), sin(-t))) * e;
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pointPos[1] = (0.5 + 0.5 * float2(cos(t * 1.7856), sin(t * 1.234))) * e;
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pointPos[2] = (0.5 + 0.5 * float2(cos(-t * 2.78633), sin(-t * 3.564))) * e;
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pointPos[3] = (0.5 + 0.5 * float2(cos(t * 4.567), sin(t * 3.124))) * e;
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float3 pointCol[NUM_POINTS];
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pointCol[0] = _Color1+float3(0.0, sin(t * 0.230) * 0.1, cos(t * 0.268 + 0.34) * 0.1);
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pointCol[1] = _Color1;
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pointCol[2] = _Color2;
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pointCol[3] = _Color3;
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float blend = 4.0;
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float3 col = float3(0.0,0.0,0.0);
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float totalWeight = 0.0;
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for (int i = 0; i < NUM_POINTS; ++i) {
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float dist = distance(uv, pointPos[i]);
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float weight = 1.0 / (pow(dist, blend) + 0.01);
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col += pointCol[i] * weight;
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totalWeight += weight;
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}
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col /= totalWeight;
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return float4(col+float3(attenuation,attenuation,attenuation)*0.2, _Alpha);
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}
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ENDCG
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}
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}
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FallBack "Diffuse"
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}
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