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[M] water plant shader graph

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Mustapha_DT
2025-03-06 16:55:41 +08:00
parent cb050e34d2
commit d2d11c52e3
13 changed files with 3170 additions and 48 deletions
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133
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138
Packages/zzwater/Mats/water_plant.mat Normal file
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Packages/zzwater/shaders/WaterPlantG.shadergraph Normal file
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28
Packages/zzwater/shaders/libs/WaveObj.hlsl Normal file
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//UNITY_SHADER_NO_UPGRADE
#ifndef WATER_OBJ_INCLUDE
#define WATER_OBJ_INCLUDE
#ifndef GET_TF_FROM_M
#define GET_TF_FROM_M(m) dot(float3(m[0].w, m[1].w, m[2].w),1)
#endif
inline float3 GetObjWaveDisplacement(float3 positionOS, float4 waterDir, float freq, float intensity, float factor)
{
float3 positionWS = TransformObjectToWorld(positionOS);
float objFreq = _Time.y * freq + positionWS.y ;
float objPhase = objFreq + GET_TF_FROM_M(GetObjectToWorldMatrix()) * waterDir.w;
float branchPhase = objPhase + dot(positionOS.xyz,1);
float offset = sin(objPhase) + cos(branchPhase);
return normalize(waterDir.xyz) * offset * factor * intensity;
}
void GGetObjWaveDisplacement_float(float3 positionOS, float4 waterDir, float freq, float intensity, float factor, out float3 Out)
{
Out = GetObjWaveDisplacement(positionOS, waterDir, freq, intensity, factor);
}
#endif //WATER_OBJ_INCLUDE

7
Packages/zzwater/shaders/libs/WaveObj.hlsl.meta Normal file
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81
Packages/zzwater/shaders/water_plant.shader
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@@ -3,41 +3,49 @@ Shader "zzwater/waterPlant"
Properties
{
_MainTex ("Albedo (RGB)", 2D) = "white" {}
_SwayFreq("Sway Frequency", Range(0,10)) = 1.0
_SubFreq("sub Frequency", Range(0,100)) = 1.0
_SwayIntensity("Sway Intensity", Range(0,2)) = 0.1
_WindDir("Wind Direction", Vector) = (1,0,0,0)
_TineColor("Tine color", Color) = (1,1,1)
_SwayFreq("Sway Frequency", Range(0,5)) = 1.0
_SwayIntensity("Sway Intensity", Range(0.05,0.5)) = 0.1
_WaterDir("Water Direction", Vector) = (1,0,0,0)
// _waterDir.w for wave diff from each other
}
SubShader
{
Tags
{
"RenderType" = "Opaque"
"RenderPipeline" = "UniversalPipeline"
"UniversalMaterialType" = "Lit"
"IgnoreProjector" = "True"
Tags
{
"RenderPipeline"="UniversalPipeline"
"RenderType"="Opaque"
"UniversalMaterialType" = "Unlit"
"Queue"="Geometry"
"DisableBatching"="False"
}
LOD 300
Pass
{
Name "ForwardLit"
Tags { "LightMode" = "UniversalForward" }
ZCLIP On
Name "Universal Forward"
Tags
{
// LightMode: <None>
}
// Render State
Cull Back
Blend One Zero
ZTest LEqual
ZWrite On
HLSLPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma multi_compile _ _MAIN_LIGHT_SHADOWS
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl"
#include "Packages/zzwater/shaders/libs/WaveObj.hlsl"
struct Attributes {
float4 positionOS : POSITION;
float2 uv : TEXCOORD0;
float3 normalOS : NORMAL;
float4 color : COLOR;
};
@@ -45,34 +53,29 @@ Shader "zzwater/waterPlant"
{
float4 positionHCS : SV_POSITION;
float2 uv : TEXCOORD0;
float3 normalWS : TEXCOORD1;
float4 color : TEXCOORD2;
float4 color : TEXCOORD1;
};
sampler2D _MainTex;
CBUFFER_START(UnityPerMaterial)
float4 _MainTex_ST;
float3 _TineColor;
half _SwayFreq;
half _SubFreq;
half _SwayIntensity;
float4 _WindDir;
float4 _WaterDir;
CBUFFER_END
TEXTURE2D(_MainTex);
SAMPLER(sampler_MainTex);
Varyings vert (Attributes v)
{
Varyings o;
// 顶点摆动算法[^1]
float3 worldPos = TransformObjectToWorld(v.positionOS.xyz);
float phase = worldPos.y * _SwayFreq + _Time.y;
float phase2 = phase * _SubFreq;
float offset = clamp(sin(phase) + sin(phase2), -1.0, 1.0) * _SwayIntensity * v.color.a;
//half offset = sin(phase) * _SwayIntensity * v.color.a;
// 风方向控制
float3 displacement = _WindDir.xyz * offset;
v.positionOS.xyz += displacement * 0.1;
float3 displacement;
v.positionOS.xyz += GetObjWaveDisplacement(v.positionOS, _WaterDir, _SwayFreq, _SwayIntensity, v.color.a);
o.positionHCS = TransformObjectToHClip(v.positionOS.xyz);
o.normalWS = TransformObjectToWorldNormal(v.normalOS);
o.uv = TRANSFORM_TEX(v.uv, _MainTex);
o.color = v.color;
return o;
@@ -80,15 +83,9 @@ Shader "zzwater/waterPlant"
half4 frag (Varyings i) : SV_Target
{
half4 albedo = tex2D(_MainTex, i.uv);
half4 albedo = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, i.uv);
clip(albedo.a - 0.5);
//return half4(i.color.aaa, 1.0);
return half4(albedo.rgb, 1.0);
//Light mainLight = GetMainLight(TransformWorldToShadowCoord(i.positionHCS));
// 简易光照模型[^2]
//half3 diffuse = mainLight.color * saturate(dot(i.normalWS, mainLight.direction));
//return half4(albedo.rgb * diffuse, 1.0);
return half4(albedo.rgb * _TineColor, 1.0);
}
ENDHLSL
}