【内置渲染管线】Built_IN水面效果Shader

1.水面波动UV动画

Shader "Hsj/Whater" {Properties{_MainTex("MainTex",2D) = "white"{}_MainColor("MainColor",COLOR) = (1,1,1,1)_AddTex("AddTex",2D) = "white"{}_Maxset("Max",Range(0.1,1.0)) = 0.1}SubShader{Tags{"RenderType" = "Transparent" "Queue" = "Transparent" "IgnoreProjector" = "True"}LOD 200pass{CGPROGRAM#pragma vertex vert#pragma fragment frag#include "UnityCG.cginc"float4 _MainColor;sampler2D _MainTex;sampler2D _AddTex;float4 _MainTex_ST;float _Maxset;struct appdata{float4 vertex:POSITION;float2 texcoord:TEXCOORD0;};struct v2f{float4 pos:POSITION;float2 uv:TEXCOORD0;};v2f vert(appdata v){v2f o;o.pos = UnityObjectToClipPos(v.vertex);o.uv = TRANSFORM_TEX(v.texcoord,_MainTex);return o;}float4 frag(v2f o) :SV_Target{float2 c = (tex2D(_AddTex,o.uv.xy + float2(0,_Time.x)).gb + tex2D(_AddTex,o.uv.xy + float2(_Time.x,0)).gb) - 1;float2 ruv = o.uv.xy + c.xy*_Maxset;half4 h = tex2D(_MainTex,ruv)*_MainColor;return h;}ENDCG}}FallBack "Diffuse"}

2.简单的扰动

Shader "Custom/Water"
{Properties{_MainTint("Tint",Color) = (1,1,1,1)_MainTex("水纹贴图", 2D) = "white" {}_WaterAlpha("水不透明度",Range(0,1)) = 0.5_ScrollSpeed("贴图滚动速度", Range(0,10)) = 2_NoiseTex("水波噪声贴图",2D) = "white"{}_Amount("噪声影响因子", Range(0,2)) = 1_Frequency("水波频率",Range(0,1.4)) = 0.8_WaveSpeed("水波速度",Range(0.1, 80)) = 10_Amplitude("水波振幅", Range(-1, 1)) = 1_CWaveVal("水环振幅", Range(.01, 20)) = 1}SubShader{Tags{"Queue" = "Transparent""RenderType" = "Transparent"}LOD 200CGPROGRAM// Physically based Standard lighting model, and enable shadows on all light types#pragma surface surf Standard alpha:fade #pragma vertex vert#pragma target 4.0struct Input{float2 uv_MainTex;float2 uv_StoneTex;float2 uv_NoiseTex;};fixed4 _MainTint;fixed _ScrollSpeed;sampler2D _MainTex;sampler2D _NoiseTex;fixed _WaterAlpha;fixed _Amount;fixed _Frequency;fixed _WaveSpeed;fixed _Amplitude;float _CWaveVal;UNITY_INSTANCING_BUFFER_START(Props)UNITY_INSTANCING_BUFFER_END(Props)void surf(Input IN, inout SurfaceOutputStandard o){//引入贴图fixed2 scrolledUV = IN.uv_MainTex;fixed2 noiseTex = IN.uv_NoiseTex;//流动fixed ScrollValue = _ScrollSpeed * _Time;//非交替定向流动half4 n = tex2D(_NoiseTex,noiseTex) * _Amount;//噪声因子scrolledUV += fixed2(ScrollValue + n.x, ScrollValue + n.y);//x，y方向各自偏移量//圆环旋转float2 center = (0.5, 0.5);//若要中点，注意与平铺值的一半对应；此处平铺为1,1float2 dt = IN.uv_MainTex - center;float len = length(dt);//偏移量float intensity = sin(_SinTime.x * 3) * _CWaveVal;//旋转强度因子float off = len * intensity;//对应uv旋转量float2x2 rot = float2x2(cos(off), -sin(off), sin(off), cos(off));//二维空间旋转矩阵dt = mul(rot, dt) + center;//乘旋转矩阵，加上需要偏移中心的量half4 c = tex2D(_MainTex, dt + scrolledUV);//uv偏移（圆环与流动）//赋值输出o.Albedo = c.rgb * _MainTint;o.Alpha = _WaterAlpha;}void vert(inout appdata_full v, out Input o){UNITY_INITIALIZE_OUTPUT(Input,o);float time = _WaveSpeed * _Time;float waveValue = sin(time + v.vertex.x * _Frequency) * _Amplitude;//偏移量v.vertex.xyz = float3(v.vertex.x, v.vertex.y + waveValue, v.vertex.z);//在y轴附加偏移量}ENDCG}FallBack "Diffuse"
}

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【内置渲染管线】Built_IN水面效果Shader

1.水面波动UV动画

2.简单的扰动

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