e6181c11dc
Added Main Menu scene Tweaked world map to incorporate secondary colors in zone icons + glowing links Entity Serialization is now generic Zone Serialization now includes entities Fixed bug where wormhole traversal would unbind from player entity Game Manager no longer spawns entities (loadout file format changed) Wrote extension to randomly select weighted items from collections (for generating enemies)
104 lines
3.5 KiB
Text
104 lines
3.5 KiB
Text
Shader "Aetheria/Influence"
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{
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Properties
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{
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_MainTex ("Influence Map", 2D) = "white" {}
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_Color1 ("Primary Color", Color) = (1,1,1,1)
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_Color2 ("Secondary Color", Color) = (1,1,1,1)
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_Threshold("Border Threshold", Float) = 0.05
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_FillTiling("Fill Tiling", Float) = 50
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_FillBorderBlend("Fill Border Blend", Float) = .05
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_FillBlend("Fill Blend", Float) = .05
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_PatternBlend("Pattern Blend", Float) = .05
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_PatternOffset("Pattern Offset", Float) = .05
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_FillAlpha("Fill Alpha", Float) = .5
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_FillTilt("Fill Tilt", Range(0,3.14)) = 1
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_Stroke("Stroke Weight", Float) = 2
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_StrokeBlend("Stroke Blend", Float) = .05
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_StrokeTransitionBlend("Stroke Transition Blend", Float) = .05
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}
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SubShader
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{
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Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" "PreviewType"="Plane" }
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LOD 100
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Blend SrcAlpha OneMinusSrcAlpha
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Cull Off Lighting Off 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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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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float4 _MainTex_TexelSize;
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fixed4 _Color1;
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fixed4 _Color2;
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half _FillTiling;
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half _FillBlend;
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half _FillBorderBlend;
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half _FillAlpha;
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half _FillTilt;
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half _PatternBlend;
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half _PatternOffset;
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half _Threshold;
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half _Stroke;
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half _StrokeBlend;
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half _StrokeTransitionBlend;
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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 = TRANSFORM_TEX(v.uv, _MainTex);
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return o;
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}
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fixed4 frag (v2f i) : SV_Target
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{
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// Sample influence texture
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float influence = tex2D(_MainTex, i.uv).r;
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// Calculate gradient and rate of change of influence
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float2 grad = float2(ddx(influence), ddy(influence));
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float diff = length(grad);
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// Tilt determines the vector along which we measure the uv coordinate
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float2 patternDirection = float2(sin(_FillTilt), cos(_FillTilt));
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// Repeat a sine wave along the pattern direction and smoothstep it to interpolate between the two pattern colors
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fixed4 pattern = lerp(_Color1, _Color2, smoothstep(-_PatternBlend, _PatternBlend, _PatternOffset + sin(dot(patternDirection, i.uv * _FillTiling))));
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float4 col = pattern *
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smoothstep(_Threshold, _Threshold + _FillBorderBlend, influence) *
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smoothstep(_Threshold + _FillBlend, _Threshold, influence) *
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_FillAlpha;
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// Draw a line at the threshold
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float isoline = abs(influence - _Threshold) / diff;
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col = smoothstep(0,_Threshold, influence) *
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lerp(col,
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lerp(_Color1, _Color2, smoothstep(_StrokeTransitionBlend*diff, -_StrokeTransitionBlend*diff, influence - _Threshold)),
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smoothstep(_Stroke * (1 + _StrokeBlend), _Stroke, isoline));
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return col;
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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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