[M] water plant shader graph

Assets/Test/UnderWater/TUlit.shadergraph

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Assets/Test/UnderWater/TUlit.shadergraph.meta

@@ -0,0 +1,10 @@
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Assets/Test/UnderWater/testshader.shader

@@ -53,7 +53,7 @@ Shader "zzwater/testshader"
                 float4x4 mx = GetObjectToWorldMatrix();
                 o.positionHCS = TransformObjectToHClip(v.positionOS);
                 float factor = dot(float3(mx[0].w, mx[1].w, mx[2].w), 1);
-                o.phase = sin(_Time.y * factor);
+                o.phase = sin(_Time.y * 1.5 + factor);
                 o.uv = TRANSFORM_TEX(v.uv, _MainTex);
                 return o;
             }

Assets/Test/Wind/WaveAnimTest.shadergraph

@@ -249,6 +249,7 @@
     "m_OutputNode": {
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+    "m_SubDatas": [],
     "m_ActiveTargets": [
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@@ -1271,7 +1272,7 @@
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-        "m_SerializedTexture": "{\"texture\":{\"instanceID\":0}}",
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@@ -1292,7 +1293,7 @@
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Packages/zzwater/Mats/WaterPlantG.mat

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Packages/zzwater/Mats/WaterPlantG.mat.meta

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Packages/zzwater/Mats/water_plant.mat

@@ -108,10 +108,10 @@ Material:
     - _SpecularHighlights: 1
     - _SrcBlend: 1
     - _SrcBlendAlpha: 1
-    - _SubFreq: 0
+    - _SubFreq: 0.3
     - _Surface: 0
-    - _SwayFreq: 7.69
+    - _SwayFreq: 1.18
-    - _SwayIntensity: 0.183
+    - _SwayIntensity: 0.129
     - _WorkflowMode: 1
     - _ZWrite: 1
     m_Colors:
@@ -119,6 +119,8 @@ Material:
     - _Color: {r: 1, g: 1, b: 1, a: 1}
     - _EmissionColor: {r: 0, g: 0, b: 0, a: 1}
     - _SpecColor: {r: 0.2, g: 0.2, b: 0.2, a: 1}
+    - _TineColor: {r: 0.8773585, g: 0.78201175, b: 0.36832502, a: 1}
+    - _WaterDir: {r: 0.58, g: 0.44, b: -0.42, a: 2.2}
     - _WindDir: {r: 1, g: 0, b: 1, a: 0}
   m_BuildTextureStacks: []
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Packages/zzwater/shaders/WaterPlantG.shadergraph.meta

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Packages/zzwater/shaders/libs/WaveObj.hlsl

@@ -0,0 +1,28 @@
+
+//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 

Packages/zzwater/shaders/libs/WaveObj.hlsl.meta

@@ -0,0 +1,7 @@
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Packages/zzwater/shaders/water_plant.shader

@@ -3,41 +3,49 @@ Shader "zzwater/waterPlant"
     Properties
     {
         _MainTex ("Albedo (RGB)", 2D) = "white" {}
-        _SwayFreq("Sway Frequency", Range(0,10)) = 1.0
+        _TineColor("Tine color", Color) = (1,1,1)
-        _SubFreq("sub Frequency", Range(0,100)) = 1.0
+        _SwayFreq("Sway Frequency", Range(0,5)) = 1.0
-        _SwayIntensity("Sway Intensity", Range(0,2)) = 0.1
+        _SwayIntensity("Sway Intensity", Range(0.05,0.5)) = 0.1
-        _WindDir("Wind Direction", Vector) = (1,0,0,0)
+        _WaterDir("Water Direction", Vector) = (1,0,0,0)
+        // _waterDir.w for wave diff from each other
     }
 
     SubShader
     {
         Tags
         {
-            "RenderType" = "Opaque"
             "RenderPipeline"="UniversalPipeline"
-            "UniversalMaterialType" = "Lit"
+            "RenderType"="Opaque"
-            "IgnoreProjector" = "True"
+            "UniversalMaterialType" = "Unlit"
+            "Queue"="Geometry"
+            "DisableBatching"="False"
         }
-        LOD 300
 
         Pass
         {
-            Name "ForwardLit"
+            Name "Universal Forward"
-            Tags { "LightMode" = "UniversalForward" }
+
-            ZCLIP On
+            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 : TEXCOORD1;
-                float4 color : TEXCOORD2;
             };
 
-            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;
-                
+                float3 displacement;
-                // 顶点摆动算法[^1]
+                v.positionOS.xyz += GetObjWaveDisplacement(v.positionOS, _WaterDir, _SwayFreq, _SwayIntensity, v.color.a);
-                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;
                 
                 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 * _TineColor, 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);
             }
             ENDHLSL
         }