修改水

Packages/com.waveharmonic.crest/Runtime/Scripts/Data/Input/DepthLodInput.cs

@@ -0,0 +1,72 @@
+// Crest Water System
+// Copyright © 2024 Wave Harmonic. All rights reserved.
+
+using UnityEngine;
+using UnityEngine.Rendering;
+
+namespace WaveHarmonic.Crest
+{
+    /// <summary>
+    /// Registers a custom input to the <see cref="DepthLod"/>.
+    /// </summary>
+    /// <remarks>
+    /// <para>
+    /// Attach this to objects that you want to use to add water depth.
+    /// </para>
+    /// <para>
+    /// Renders depth every frame and should only be used for dynamic objects. For
+    /// static objects, use a <see cref="DepthProbe"/>
+    /// </para>
+    /// </remarks>
+    [@HelpURL("Manual/ShallowsAndShorelines.html#sea-floor-depth")]
+    public sealed partial class DepthLodInput : LodInput
+    {
+        [SerializeField, HideInInspector]
+#pragma warning disable 414
+        int _Version = 0;
+#pragma warning restore 414
+
+        [@Space(10)]
+
+        [@Label("Relative Height")]
+        [Tooltip("Whether the data is relative to the input height.\n\nUseful for procedural placement.")]
+        [@GenerateAPI]
+        [@DecoratedField, SerializeField]
+        internal bool _Relative;
+
+        [@Label("Copy Signed Distance Field")]
+        [Tooltip("Whether to copy the signed distance field.")]
+        [@GenerateAPI]
+        [@DecoratedField, SerializeField]
+        internal bool _CopySignedDistanceField;
+
+        internal static new class ShaderIDs
+        {
+            public static readonly int s_HeightOffset = Shader.PropertyToID("_Crest_HeightOffset");
+            public static readonly int s_SDF = Shader.PropertyToID("_Crest_SDF");
+        }
+
+        internal override LodInputMode DefaultMode => LodInputMode.Geometry;
+
+        internal override void InferBlend()
+        {
+            base.InferBlend();
+            _Blend = LodInputBlend.Maximum;
+        }
+
+        internal override void Draw(Lod simulation, CommandBuffer buffer, RenderTargetIdentifier target, int pass = -1, float weight = 1f, int slice = -1)
+        {
+            var wrapper = new PropertyWrapperBuffer(buffer);
+
+            wrapper.SetFloat(ShaderIDs.s_HeightOffset, _Relative ? transform.position.y : 0f);
+
+            if (IsCompute)
+            {
+                wrapper.SetInteger(ShaderIDs.s_SDF, _CopySignedDistanceField ? 1 : 0);
+                buffer.SetKeyword(WaterResources.Instance.Compute._DepthTexture, WaterResources.Instance.Keywords.DepthTextureSDF, simulation._Water._DepthLod._EnableSignedDistanceFields);
+            }
+
+            base.Draw(simulation, buffer, target, pass, weight, slice);
+        }
+    }
+}