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This commit is contained in:
BobSong
2025-06-21 21:58:06 +08:00
parent d61516a576
commit e9f76d0f11
1566 changed files with 9218 additions and 300913 deletions
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120
Packages/com.waveharmonic.crest/Runtime/Scripts/Volume/UnderwaterRenderer.EnvironmentalLighting.cs
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// Crest Water System
// Copyright © 2024 Wave Harmonic. All rights reserved.
using UnityEngine;
using UnityEngine.Rendering;
namespace WaveHarmonic.Crest
{
partial class UnderwaterRenderer
{
const float k_DepthOutScattering = 0.25f;
Light _EnvironmentalLight;
float _EnvironmentalLightIntensity;
float _EnvironmentalAmbientIntensity;
float _EnvironmentalReflectionIntensity;
float _EnvironmentalFogDensity;
float _EnvironmentalAverageDensity = 0f;
bool _EnvironmentalInitialized = false;
bool _EnvironmentalNeedsRestoring;
void EnableEnvironmentalLighting()
{
if (!_EnvironmentalLightingEnable)
{
return;
}
#if d_UnitySRP
if (_EnvironmentalLightingVolume == null && !RenderPipelineHelper.IsLegacy)
{
// Create volume to weigh in underwater profile
var go = new GameObject();
go.transform.parent = _Water.Container.transform;
go.hideFlags = HideFlags.HideAndDontSave;
go.name = "Underwater Lighting Volume";
_EnvironmentalLightingVolume = go.AddComponent<Volume>();
_EnvironmentalLightingVolume.weight = 0;
_EnvironmentalLightingVolume.priority = 1000;
_EnvironmentalLightingVolume.profile = _EnvironmentalLightingVolumeProfile;
}
#endif
_EnvironmentalInitialized = true;
}
void DisableEnvironmentalLighting()
{
RestoreEnvironmentalLighting();
_EnvironmentalInitialized = false;
}
void RestoreEnvironmentalLighting()
{
if (!_EnvironmentalInitialized || !_EnvironmentalNeedsRestoring)
{
return;
}
// Restore lighting settings.
if (_EnvironmentalLight != null) _EnvironmentalLight.intensity = _EnvironmentalLightIntensity;
_EnvironmentalLight = null;
RenderSettings.ambientIntensity = _EnvironmentalAmbientIntensity;
RenderSettings.reflectionIntensity = _EnvironmentalReflectionIntensity;
RenderSettings.fogDensity = _EnvironmentalFogDensity;
Shader.SetGlobalFloat(ShaderIDs.s_UnderwaterEnvironmentalLightingWeight, 0f);
if (_EnvironmentalLightingVolume != null) _EnvironmentalLightingVolume.weight = 0;
_EnvironmentalNeedsRestoring = false;
}
void UpdateEnvironmentalLighting(Camera camera, Vector3 extinction, float height)
{
if (!_EnvironmentalInitialized)
{
return;
}
if (!_Water.Material.HasColor(WaterRenderer.ShaderIDs.s_AbsorptionColor))
{
return;
}
// Store lighting settings.
{
_EnvironmentalLight = _Water.PrimaryLight;
if (_EnvironmentalLight) _EnvironmentalLightIntensity = _EnvironmentalLight.intensity;
_EnvironmentalAmbientIntensity = RenderSettings.ambientIntensity;
_EnvironmentalReflectionIntensity = RenderSettings.reflectionIntensity;
_EnvironmentalFogDensity = RenderSettings.fogDensity;
}
var density = extinction;
_EnvironmentalAverageDensity = (density.x + density.y + density.z) / 3f;
var multiplier = Mathf.Exp(_EnvironmentalAverageDensity * Mathf.Min(height * k_DepthOutScattering, 0f) * _EnvironmentalLightingWeight);
// Darken environmental lighting when viewer underwater.
if (_EnvironmentalLight != null)
{
_EnvironmentalLight.intensity = Mathf.Lerp(0, _EnvironmentalLightIntensity, multiplier);
}
RenderSettings.ambientIntensity = Mathf.Lerp(0, _EnvironmentalAmbientIntensity, multiplier);
RenderSettings.reflectionIntensity = Mathf.Lerp(0, _EnvironmentalReflectionIntensity, multiplier);
RenderSettings.fogDensity = Mathf.Lerp(0, _EnvironmentalFogDensity, multiplier);
Shader.SetGlobalFloat(ShaderIDs.s_UnderwaterEnvironmentalLightingWeight, 1f - multiplier);
#if d_UnitySRP
if (_EnvironmentalLightingVolume != null)
{
_EnvironmentalLightingVolume.weight = 1f - multiplier;
}
#endif
_EnvironmentalNeedsRestoring = true;
}
}
}