水体效果

演示视频链接

https://www.bilibili.com/video/av68650714

Shader 源码

Shader "Water"
{Properties{_WaterNormal("Water Normal", 2D) = "bump" {}_NormalScale("Normal Scale", Float) = 0_DeepColor("Deep Color", Color) = (0,0,0,0)_ShalowColor("Shalow Color", Color) = (1,1,1,0)_WaterDepth("Water Depth", Float) = 0_WaterFalloff("Water Falloff", Float) = 0_WaterSpecular("Water Specular", Float) = 0_WaterSmoothness("Water Smoothness", Float) = 0_Distortion("Distortion", Float) = 0.5_Foam("Foam", 2D) = "white" {}_FoamDepth("Foam Depth", Float) = 0_FoamFalloff("Foam Falloff", Float) = 0_FoamSpecular("Foam Specular", Float) = 0_FoamSmoothness("Foam Smoothness", Float) = 0[HideInInspector] _texcoord( "", 2D ) = "white" {}[HideInInspector] __dirty( "", Int ) = 1}SubShader{Tags{ "RenderType" = "Opaque"  "Queue" = "Transparent+0" }Cull BackGrabPass{ }CGPROGRAM#include "UnityStandardUtils.cginc"#include "UnityShaderVariables.cginc"#include "UnityCG.cginc"#pragma target 3.0#pragma surface surf StandardSpecular keepalpha struct Input{half2 uv_texcoord;float4 screenPos;};uniform half _NormalScale;uniform sampler2D _WaterNormal;uniform float4 _WaterNormal_ST;uniform half4 _DeepColor;uniform half4 _ShalowColor;uniform sampler2D _CameraDepthTexture;uniform half _WaterDepth;uniform half _WaterFalloff;uniform half _FoamDepth;uniform half _FoamFalloff;uniform sampler2D _Foam;uniform float4 _Foam_ST;uniform sampler2D _GrabTexture;uniform half _Distortion;uniform half _WaterSpecular;uniform half _FoamSpecular;uniform half _WaterSmoothness;uniform half _FoamSmoothness;void surf( Input i , inout SurfaceOutputStandardSpecular o ){float2 uv_WaterNormal = i.uv_texcoord * _WaterNormal_ST.xy + _WaterNormal_ST.zw;float2 panner22 = ( uv_WaterNormal + 1.0 * _Time.y * float2( -0.03,0 ));float2 panner19 = ( uv_WaterNormal + 1.0 * _Time.y * float2( 0.04,0.04 ));float3 temp_output_24_0 = BlendNormals( UnpackScaleNormal( tex2D( _WaterNormal, panner22 ) ,_NormalScale ) , UnpackScaleNormal( tex2D( _WaterNormal, panner19 ) ,_NormalScale ) );o.Normal = temp_output_24_0;float4 ase_screenPos = float4( i.screenPos.xyz , i.screenPos.w + 0.00000000001 );float eyeDepth1 = LinearEyeDepth( SAMPLE_DEPTH_TEXTURE_PROJ( _CameraDepthTexture, UNITY_PROJ_COORD(ase_screenPos) ) );float temp_output_89_0 = abs( ( eyeDepth1 - ase_screenPos.w ) );float temp_output_94_0 = saturate( pow( ( temp_output_89_0 + _WaterDepth ) , _WaterFalloff ) );float4 lerpResult13 = lerp( _DeepColor , _ShalowColor , temp_output_94_0);float2 uv_Foam = i.uv_texcoord * _Foam_ST.xy + _Foam_ST.zw;float2 panner116 = ( uv_Foam + 1.0 * _Time.y * float2( -0.01,0.01 ));float temp_output_114_0 = ( saturate( pow( ( temp_output_89_0 + _FoamDepth ) , _FoamFalloff ) ) * tex2D( _Foam, panner116 ).r );float4 lerpResult117 = lerp( lerpResult13 , half4(1,1,1,0) , temp_output_114_0);float4 ase_screenPos164 = ase_screenPos;#if UNITY_UV_STARTS_AT_TOPfloat scale164 = -1.0;#elsefloat scale164 = 1.0;#endiffloat halfPosW164 = ase_screenPos164.w * 0.5;ase_screenPos164.y = ( ase_screenPos164.y - halfPosW164 ) * _ProjectionParams.x* scale164 + halfPosW164;ase_screenPos164.xyzw /= ase_screenPos164.w;float4 screenColor65 = tex2D( _GrabTexture, ( half3( (ase_screenPos164).xy ,  0.0 ) + ( temp_output_24_0 * _Distortion ) ).xy );float4 lerpResult93 = lerp( lerpResult117 , screenColor65 , temp_output_94_0);o.Albedo = lerpResult93.rgb;float lerpResult130 = lerp( _WaterSpecular , _FoamSpecular , temp_output_114_0);half3 temp_cast_3 = (lerpResult130).xxx;o.Specular = temp_cast_3;float lerpResult133 = lerp( _WaterSmoothness , _FoamSmoothness , temp_output_114_0);o.Smoothness = lerpResult133;o.Alpha = 1;}ENDCG}Fallback "Diffuse"
}