【渲染】水面 - shader

2024-12-24 13:06:25 +08:00 · 2024-12-24 13:06:25 +08:00 · 907cd1ea34
parent 655cacd459
commit 907cd1ea34
6 changed files with 392 additions and 0 deletions
--- a/ProjectNLD/Assets/Code/Shaders/Scene/NLD_Scene_Water.shader
+++ b/ProjectNLD/Assets/Code/Shaders/Scene/NLD_Scene_Water.shader
@ -0,0 +1,107 @@
+Shader "NLD_URP/NLD_Scene_Water"
+{
+    Properties
+    {
+        [MainTexture]_BaseMap ("主贴图", 2D) = "white" {}
+        [MainColor] _BaseColor("基础颜色", Color) = (1, 1, 1, 1)
+        
+        _AddMap("附加贴图", 2D) = "white" {}
+        _AddColor("附加颜色", Color) = (1, 1, 1, 1)
+        _AddUVMoving("附加UV移动", Vector) = (0.1, 0.1, 0, 0)
+        _AddColorIntensity("附加颜色强度", Range(0, 10)) = 1
+        
+        _NoiseMap("噪声贴图", 2D) = "white" {}
+        _NoiseUVMoving("噪声UV移动", Vector) = (0.1, 0.1, 0, 0)
+    }
+    SubShader
+    {
+        Tags
+        {
+            "RenderType" = "Transparent"
+            "RenderPipeline" = "UniversalPipeline"
+        }
+        LOD 100
+        
+        HLSLINCLUDE
+
+        #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
+
+        struct Attributes_LT {
+            float4 positionOS : POSITION;
+            float2 uv : TEXCOORD0;
+        };
+
+        struct Varyings_LT {
+            float4 positionCS : SV_POSITION;
+            float2 uv : TEXCOORD0;
+        };
+
+        TEXTURE2D(_BaseMap);
+        SAMPLER(sampler_BaseMap);
+
+        TEXTURE2D(_AddMap);
+        SAMPLER(sampler_AddMap);
+
+        TEXTURE2D(_NoiseMap);
+        SAMPLER(sampler_NoiseMap);
+
+        CBUFFER_START(UnityPerMaterial)
+            float4 _BaseMap_ST;
+            float4 _AddMap_ST;
+            float4 _NoiseMap_ST;
+        
+            float4 _BaseColor;
+            float4 _AddColor;
+
+            float4 _AddUVMoving;
+            float4 _NoiseUVMoving;
+
+            float _AddColorIntensity;
+        CBUFFER_END
+
+        ENDHLSL
+
+        Pass
+        {
+            Cull Back
+            ZWrite Off
+            ZTest LEqual
+            Blend SrcAlpha OneMinusSrcAlpha
+            
+            Name "Water"
+            Tags
+            {
+                "LightMode" = "SRPDefaultUnlit"
+            }
+            
+            HLSLPROGRAM
+
+            #pragma vertex vert
+            #pragma fragment frag
+
+            Varyings_LT vert(Attributes_LT input)
+            {
+                Varyings_LT output;
+                output.positionCS = TransformObjectToHClip(input.positionOS);
+                output.uv = TRANSFORM_TEX(input.uv, _BaseMap);
+                return output;
+            }
+
+            float4 frag(Varyings_LT input) : SV_Target
+            {
+                float noise = SAMPLE_TEXTURE2D(_NoiseMap, sampler_NoiseMap, input.uv + _NoiseUVMoving.xy * _Time.y).r;
+                float2 finalUVBase = input.uv + noise;
+                float4 baseColor = SAMPLE_TEXTURE2D(_BaseMap, sampler_BaseMap, finalUVBase);
+                float4 finalColor = baseColor * _BaseColor;
+
+                float2 finalUVAdd = input.uv + _AddUVMoving.xy * _Time.y;
+                float4 addColor = SAMPLE_TEXTURE2D(_AddMap, sampler_AddMap, finalUVAdd);
+                finalColor += addColor * _AddColor * finalColor.a * _AddColorIntensity;
+                
+                return finalColor;
+            }
+
+            ENDHLSL
+        }
+    }
+}
--- a/ProjectNLD/Assets/Code/Shaders/Scene/NLD_Scene_Water.shader.meta
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