128 lines
4.3 KiB
C#
128 lines
4.3 KiB
C#
// Crest Water System
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// Copyright © 2024 Wave Harmonic. All rights reserved.
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#if UNITY_EDITOR
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using UnityEditor;
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using UnityEngine;
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namespace WaveHarmonic.Crest
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{
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[@ExecuteDuringEditMode(ExecuteDuringEditMode.Include.None, ExecuteDuringEditMode.Options.Singleton)]
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[SelectionBase]
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[AddComponentMenu(Constants.k_MenuPrefixScripts + "Water Renderer")]
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[@HelpURL("About/Introduction.html")]
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sealed partial class WaterRenderer
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{
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internal const string k_ProxyShader = "Hidden/Crest/Editor/WaterProxy";
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internal GameObject _ProxyPlane;
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private protected override bool CanRunInEditMode => !_ShowWaterProxyPlane;
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internal bool IsSceneViewActive { get; set; }
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int _LastFrameSceneCamera;
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private protected override void Reset()
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{
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_Underwater._Material = AssetDatabase.LoadAssetAtPath<Material>("Packages/com.waveharmonic.crest/Runtime/Materials/Water Volume.mat");
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_Surface.Reset();
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Meniscus.Reset();
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base.Reset();
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}
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// Tracks the scene view rendering to determine if a scene camera is active.
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void UpdateLastActiveSceneCamera(Camera camera)
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{
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if (camera.cameraType == CameraType.SceneView)
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{
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IsSceneViewActive = true;
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_LastFrameSceneCamera = Time.frameCount;
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}
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if (_LastFrameSceneCamera < Time.frameCount - 1)
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{
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IsSceneViewActive = false;
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}
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}
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[RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
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static void OnDomainReload()
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{
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AfterRuntimeLoad();
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}
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[UnityEditor.Callbacks.DidReloadScripts]
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static void OnReLoadScripts()
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{
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AfterScriptReload();
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}
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[@OnChange]
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void OnChange(string path, object previous)
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{
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switch (path)
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{
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case nameof(_MultipleViewpoints):
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case nameof(_EditorMultipleViewpoints):
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Rebuild();
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break;
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case nameof(_ExtentsSizeMultiplier):
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case nameof(_GeometryDownSampleFactor):
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Surface._Rebuild = true;
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break;
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case nameof(_ShowWaterProxyPlane):
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SetShowProxyPlane((bool)previous, _ShowWaterProxyPlane);
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break;
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}
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}
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void SetShowProxyPlane(bool previous, bool current)
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{
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if (previous == current) return;
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if (!isActiveAndEnabled || Application.isPlaying) return;
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if (!(runInEditMode = !_ShowWaterProxyPlane)) OnDisable();
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}
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}
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partial class WaterRenderer
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{
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/// <inheritdoc/>
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private protected override void OnValidate()
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{
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base.OnValidate();
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// Must be at least 0.25, and must be on a power of 2
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_ScaleRange.x = Mathf.Pow(2f, Mathf.Round(Mathf.Log(Mathf.Max(_ScaleRange.x, 0.25f), 2f)));
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if (_ScaleRange.y < Mathf.Infinity)
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{
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// otherwise must be at least 0.25, and must be on a power of 2
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_ScaleRange.y = Mathf.Pow(2f, Mathf.Round(Mathf.Log(Mathf.Max(_ScaleRange.y, _ScaleRange.x), 2f)));
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}
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// Gravity 0 makes waves freeze which is weird but doesn't seem to break anything so allowing this for now
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_GravityMultiplier = Mathf.Max(_GravityMultiplier, 0f);
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// LOD data resolution multiple of 2 for general GPU texture reasons (like pixel quads)
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_Resolution -= _Resolution % 2;
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_GeometryDownSampleFactor = Mathf.ClosestPowerOfTwo(Mathf.Max(_GeometryDownSampleFactor, 1));
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var remGeo = _Resolution % _GeometryDownSampleFactor;
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if (remGeo > 0)
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{
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var newLDR = _Resolution - (_Resolution % _GeometryDownSampleFactor);
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Debug.LogWarning
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(
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$"Crest: Adjusted Lod Data Resolution from {_Resolution} to {newLDR} to ensure the Geometry Down Sample Factor is a factor ({_GeometryDownSampleFactor}).",
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this
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);
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_Resolution = newLDR;
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}
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}
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}
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}
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#endif
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