109 lines
3.0 KiB
Plaintext
109 lines
3.0 KiB
Plaintext
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Shader "URP/GridShader"
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{
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Properties
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{
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_Size("Size",vector) = (1,1,0,0)
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_Alpha("Alpha",Range(0, 1)) = 1
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_UserInput("UserInput",Range(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"}
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blend srcalpha oneminussrcalpha
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zwrite off
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ztest 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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float3 worldPos : TEXCOORD1;
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};
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struct RenderData {
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int barrier;
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float isSelected;
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float r;
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float g;
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float b;
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};
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StructuredBuffer<RenderData> _InputData;
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uniform float4 _Size;
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uniform float _Alpha;
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uniform float _UserInput;
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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.worldPos = mul(unity_ObjectToWorld, v.vertex);
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o.uv = v.uv;
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return o;
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}
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#define width _Size.x
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#define height _Size.y
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fixed4 frag (v2f i) : SV_Target
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{
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//细的分割线
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float x0 = i.uv.x * width;
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float y0 = i.uv.y * height;
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fixed xLine0 = abs((x0 - floor(x0)) - 0.5) * 2.0;
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fixed yLine0 = abs((y0 - floor(y0)) - 0.5) * 2.0;
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fixed edgeLine0 = max(xLine0, yLine0);
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float w0 = fwidth(edgeLine0 * 0.5) * 2.0;
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edgeLine0 = smoothstep(-w0, w0, edgeLine0 - 0.925);
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//细的分割线结束
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//粗的分割线
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float x1 = i.uv.x * width * 0.05;
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float y1 = i.uv.y * height * 0.05;
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fixed xLine1 = abs((x1 - floor(x1)) - 0.5) * 2.0;
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fixed yLine1 = abs((y1 - floor(y1)) - 0.5) * 2.0;
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fixed edgeLine1 = max(xLine1, yLine1);
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float w1 = fwidth(edgeLine1 * 0.5) * 2.0;
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edgeLine1 = smoothstep(-w1, w1, edgeLine1 - 0.925);
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//粗的分割线结束
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float cameraDis = distance(_WorldSpaceCameraPos.xyz, i.worldPos);
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float cameraFade = smoothstep(70, 100, cameraDis);
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fixed3 col = fixed3(0, 0, 0);
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if(_UserInput < 0.5)
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{
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col = fixed3(1,1,1);
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cameraFade = 1; //只显示粗线
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float lineAlpha = max(edgeLine0 * (1 - cameraFade), edgeLine1 * cameraFade);
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return fixed4(col, _Alpha * lineAlpha * 0.5);
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}
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int index = floor(x0) + floor(y0) * width;
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col = fixed3(_InputData[index].r, _InputData[index].g, _InputData[index].b);
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col = lerp(col, fixed3(1, 1, 1), edgeLine0 * (1 - cameraFade));
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col = lerp(col, fixed3(0, 0, 0), edgeLine1 * cameraFade);
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col = lerp(col, fixed3(1, 1, 0), _InputData[index].isSelected);
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return fixed4(col, _Alpha);
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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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