92 lines
2.7 KiB
C#
92 lines
2.7 KiB
C#
// Crest Water System
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// Copyright © 2024 Wave Harmonic. All rights reserved.
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#if d_UnityHDRP
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using UnityEngine.Rendering.HighDefinition;
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namespace WaveHarmonic.Crest
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{
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sealed class SampleShadowsHDRP : CustomPass
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{
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static SampleShadowsHDRP s_Instance;
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static readonly string s_Name = "Sample Shadows";
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WaterRenderer _Water;
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int _XrTargetEyeIndex = -1;
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protected override void Execute(CustomPassContext context)
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{
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var water = _Water;
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if (!water._ShadowLod.Enabled)
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{
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return;
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}
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#if UNITY_EDITOR
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if (!WaterRenderer.IsWithinEditorUpdate)
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{
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return;
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}
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#endif
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var camera = context.hdCamera.camera;
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// Custom passes execute for every camera. We only support one camera for now.
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if (!ReferenceEquals(camera, water.Viewer)) return;
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// TODO: bail when not executing for main light or when no main light exists?
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// if (renderingData.lightData.mainLightIndex == -1) return;
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camera.TryGetComponent<HDAdditionalCameraData>(out var cameraData);
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// Skip the right eye for multi-pass as data is not stereo.
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if (Rendering.HDRP.SkipPassXR(ref _XrTargetEyeIndex, cameraData))
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{
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return;
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}
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// Disable for XR SPI otherwise input will not have correct world position.
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Rendering.HDRP.DisableXR(context.cmd, cameraData);
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water._ShadowLod.BuildCommandBuffer(water, context.cmd);
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// Restore XR SPI as we cannot rely on remaining pipeline to do it for us.
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Rendering.HDRP.EnableXR(context.cmd, cameraData);
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}
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internal static void Enable(WaterRenderer water)
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{
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var gameObject = CustomPassHelpers.CreateOrUpdate
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(
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parent: water.Container.transform,
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s_Name,
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hide: !water._Debug._ShowHiddenObjects
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);
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CustomPassHelpers.CreateOrUpdate
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(
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gameObject,
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ref s_Instance,
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WaterRenderer.k_DrawLodData,
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// Earliest point after shadow maps have populated.
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CustomPassInjectionPoint.AfterOpaqueAndSky
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);
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s_Instance._Water = water;
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}
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internal static void Disable()
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{
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// It should be safe to rely on this reference for this reference to fail.
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if (s_Instance != null && s_Instance._GameObject != null)
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{
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// Will also trigger Cleanup below.
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s_Instance._GameObject.SetActive(false);
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}
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}
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}
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}
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#endif // d_UnityHDRP
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