67 lines
1.7 KiB
Plaintext
67 lines
1.7 KiB
Plaintext
Shader "Custom/AlarmFlash"
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{
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Properties
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{
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_MainTex ("Texture", 2D) = "white" {} // 主纹理
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_BaseColor ("Base Color", Color) = (1,1,1,1) // 原始颜色
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_FlashColor ("Flash Color", Color) = (1,0,0,1) // 报警颜色（红色）
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_FlashSpeed ("Flash Speed", Float) = 1.0 // 闪烁速度
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}
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SubShader
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{
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Tags { "RenderType"="Opaque" }
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LOD 200
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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 _BaseColor;
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float4 _FlashColor;
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float _FlashSpeed;
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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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// 根据时间生成闪烁因子（0~1）
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float t = sin(_Time.y * _FlashSpeed);
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float flashFactor = abs(t); // 将 -1~1 映射为 0~1
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// 混合基础色和红色
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fixed4 baseColor = tex2D(_MainTex, i.uv) * _BaseColor;
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fixed4 finalColor = lerp(baseColor, _FlashColor, flashFactor);
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return finalColor;
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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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