70 lines
2.3 KiB
C#
70 lines
2.3 KiB
C#
// Crest Water System
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// Copyright © 2024 Wave Harmonic. All rights reserved.
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using UnityEngine;
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using UnityEngine.Experimental.Rendering;
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using WaveHarmonic.Crest.Utility;
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namespace WaveHarmonic.Crest
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{
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/// <summary>
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/// Simulates horizontal motion of water.
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/// </summary>
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[FilterEnum(nameof(_TextureFormatMode), Filtered.Mode.Exclude, (int)LodTextureFormatMode.Automatic)]
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public sealed partial class FlowLod : Lod<IFlowProvider>
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{
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const string k_FlowKeyword = "CREST_FLOW_ON_INTERNAL";
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internal static readonly Color s_GizmoColor = new(0f, 0f, 1f, 0.5f);
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internal override string ID => "Flow";
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internal override Color GizmoColor => s_GizmoColor;
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private protected override Color ClearColor => Color.black;
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private protected override bool NeedToReadWriteTextureData => true;
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private protected override GraphicsFormat RequestedTextureFormat => _TextureFormatMode switch
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{
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LodTextureFormatMode.Performance => GraphicsFormat.R16G16_SFloat,
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LodTextureFormatMode.Precision => GraphicsFormat.R32G32_SFloat,
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LodTextureFormatMode.Manual => _TextureFormat,
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_ => throw new System.NotImplementedException(),
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};
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internal FlowLod()
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{
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_Resolution = 128;
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_TextureFormat = GraphicsFormat.R16G16_SFloat;
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}
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internal override void Enable()
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{
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base.Enable();
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Shader.EnableKeyword(k_FlowKeyword);
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}
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internal override void Disable()
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{
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base.Disable();
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Shader.DisableKeyword(k_FlowKeyword);
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}
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private protected override IFlowProvider CreateProvider(bool enable)
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{
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Queryable?.CleanUp();
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// Flow is GPU only, and can only be queried using the compute path.
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return enable && Enabled ? new FlowQuery(_Water) : IFlowProvider.None;
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}
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internal static readonly SortedList<int, ILodInput> s_Inputs = new(Helpers.DuplicateComparison);
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private protected override SortedList<int, ILodInput> Inputs => s_Inputs;
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[RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
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static void OnLoad()
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{
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s_Inputs.Clear();
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}
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}
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}
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