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This repository was archived by the owner on Nov 30, 2020. It is now read-only.

FogEffect #513

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44 changes: 44 additions & 0 deletions PostProcessing/Editor/Effects/FogEditor.cs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,44 @@
using UnityEngine;
using UnityEngine.Rendering.PostProcessing;

namespace UnityEditor.Rendering.PostProcessing
{
[PostProcessEditor(typeof(Fog))]
public sealed class FogEditor : PostProcessEffectEditor<Fog>
{
SerializedParameterOverride m_excludeSkybox;
SerializedParameterOverride m_color;
SerializedParameterOverride m_density;
SerializedParameterOverride m_startDistance;
SerializedParameterOverride m_endDistance;
SerializedParameterOverride m_mode;

public override void OnEnable()
{
m_excludeSkybox = FindParameterOverride(x => x.excludeSkybox);
m_color = FindParameterOverride(x => x.color);
m_density = FindParameterOverride(x => x.density);
m_startDistance = FindParameterOverride(x => x.startDistance);
m_endDistance = FindParameterOverride(x => x.endDistance);
m_mode = FindParameterOverride(x => x.mode);
}

public override void OnInspectorGUI()
{
base.OnInspectorGUI();

PropertyField(m_excludeSkybox);
PropertyField(m_color);
PropertyField(m_mode);
if (m_mode.value.intValue == (int)FogMode.Linear)
{
PropertyField(m_startDistance);
PropertyField(m_endDistance);
}
else if (m_mode.value.intValue == (int)FogMode.Exponential || m_mode.value.intValue == (int)FogMode.ExponentialSquared)
{
PropertyField(m_density);
}
}
}
}
13 changes: 13 additions & 0 deletions PostProcessing/Editor/Effects/FogEditor.cs.meta
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42 changes: 42 additions & 0 deletions PostProcessing/Runtime/Effects/DeferredFog.cs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,42 @@
using System;

namespace UnityEngine.Rendering.PostProcessing
{
[Serializable]
public sealed class DeferredFog
{
[Tooltip("Enables the internal deferred fog pass. Actual fog settings should be set in the Lighting panel.")]
public bool enabled = true;

[Tooltip("Should the fog affect the skybox?")]
public bool excludeSkybox = true;

internal DepthTextureMode GetCameraFlags()
{
return DepthTextureMode.Depth;
}

internal bool IsEnabledAndSupported(PostProcessRenderContext context)
{
return enabled
&& RenderSettings.fog
&& !RuntimeUtilities.scriptableRenderPipelineActive
&& context.resources.shaders.deferredFog
&& context.resources.shaders.deferredFog.isSupported
&& context.camera.actualRenderingPath == RenderingPath.DeferredShading; // In forward fog is already done at shader level
}

internal void Render(PostProcessRenderContext context)
{
var sheet = context.propertySheets.Get(context.resources.shaders.deferredFog);
sheet.ClearKeywords();

var fogColor = RuntimeUtilities.isLinearColorSpace ? RenderSettings.fogColor.linear : RenderSettings.fogColor;
sheet.properties.SetVector(ShaderIDs.FogColor, fogColor);
sheet.properties.SetVector(ShaderIDs.FogParams, new Vector3(RenderSettings.fogDensity, RenderSettings.fogStartDistance, RenderSettings.fogEndDistance));

var cmd = context.command;
cmd.BlitFullscreenTriangle(context.source, context.destination, sheet, excludeSkybox ? 1 : 0);
}
}
}
12 changes: 12 additions & 0 deletions PostProcessing/Runtime/Effects/DeferredFog.cs.meta
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92 changes: 70 additions & 22 deletions PostProcessing/Runtime/Effects/Fog.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -3,40 +3,88 @@
namespace UnityEngine.Rendering.PostProcessing
{
[Serializable]
public sealed class Fog
[PostProcess(typeof(FogRenderer), PostProcessEvent.AfterStack, "Unity/Fog")]
public sealed class Fog : PostProcessEffectSettings
{
[Tooltip("Enables the internal deferred fog pass. Actual fog settings should be set in the Lighting panel.")]
public bool enabled = true;
[Serializable]
public sealed class FogModeParameter : ParameterOverride<FogMode> { }

[Tooltip("Should the fog affect the skybox?")]
public bool excludeSkybox = true;
public BoolParameter excludeSkybox = new BoolParameter { value = false };
public ColorParameter color = new ColorParameter { value = Color.gray };
public FloatParameter density = new FloatParameter { value = 0.01f };
public FloatParameter startDistance = new FloatParameter { value = 100 };
public FloatParameter endDistance = new FloatParameter { value = 200 };
public FogModeParameter mode = new FogModeParameter { value = FogMode.Exponential };

internal DepthTextureMode GetCameraFlags()
public override bool IsEnabledAndSupported(PostProcessRenderContext context)
{
return DepthTextureMode.Depth;
// Never rendered directly
return false;
}

internal bool IsEnabledAndSupported(PostProcessRenderContext context)
public override void Reset(PostProcessEffectSettings defaultSettings)
{
return enabled
&& RenderSettings.fog
&& !RuntimeUtilities.scriptableRenderPipelineActive
&& context.resources.shaders.deferredFog
&& context.resources.shaders.deferredFog.isSupported
&& context.camera.actualRenderingPath == RenderingPath.DeferredShading; // In forward fog is already done at shader level
base.Reset(defaultSettings);

enabled.value = RenderSettings.fog;
color.value = RenderSettings.fogColor;
density.value = RenderSettings.fogDensity;
startDistance.value = RenderSettings.fogStartDistance;
endDistance.value = RenderSettings.fogEndDistance;
mode.value = RenderSettings.fogMode;
}
}

public sealed class FogRenderer : PostProcessEffectRenderer<Fog>
{
Fog m_backupSettings = ScriptableObject.CreateInstance<Fog>();

public override void Render(PostProcessRenderContext context)
{
throw new NotSupportedException();
}

static void Load(Fog settings, ref bool excludeSkybox)
{
excludeSkybox = settings.excludeSkybox;
RenderSettings.fog = settings.enabled;
RenderSettings.fogColor = settings.color;
RenderSettings.fogDensity = settings.density;
RenderSettings.fogStartDistance = settings.startDistance;
RenderSettings.fogEndDistance = settings.endDistance;
RenderSettings.fogMode = settings.mode;
}

static void Store(Fog result, bool excludeSkybox)
{
result.excludeSkybox.value = excludeSkybox;
result.enabled.value = RenderSettings.fog;
result.color.value = RenderSettings.fogColor;
result.density.value = RenderSettings.fogDensity;
result.startDistance.value = RenderSettings.fogStartDistance;
result.endDistance.value = RenderSettings.fogEndDistance;
result.mode.value = RenderSettings.fogMode;
}

internal void Render(PostProcessRenderContext context)
public void ApplySettings(PostProcessRenderContext context, ref bool excludeSkybox)
{
var sheet = context.propertySheets.Get(context.resources.shaders.deferredFog);
sheet.ClearKeywords();
// Backup settings
Store(m_backupSettings, excludeSkybox);

// Apply settings
Load(settings, ref excludeSkybox);

var fogColor = RuntimeUtilities.isLinearColorSpace ? RenderSettings.fogColor.linear : RenderSettings.fogColor;
sheet.properties.SetVector(ShaderIDs.FogColor, fogColor);
sheet.properties.SetVector(ShaderIDs.FogParams, new Vector3(RenderSettings.fogDensity, RenderSettings.fogStartDistance, RenderSettings.fogEndDistance));
#if UNITY_EDITOR
if (context.isSceneView && !UnityEditor.SceneView.currentDrawingSceneView.sceneViewState.showFog)
{
RenderSettings.fog = false;
}
#endif
}

var cmd = context.command;
cmd.BlitFullscreenTriangle(context.source, context.destination, sheet, excludeSkybox ? 1 : 0);
public void RestoreSettings(ref bool excludeSkybox)
{
Load(m_backupSettings, ref excludeSkybox);
}
}
}
7 changes: 4 additions & 3 deletions PostProcessing/Runtime/Effects/Fog.cs.meta
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8 changes: 8 additions & 0 deletions PostProcessing/Runtime/PostProcessEffectSettings.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -75,5 +75,13 @@ public int GetHash()
return hash;
}
}

public virtual void Reset(PostProcessEffectSettings defaultSettings)
{
int count = defaultSettings.parameters.Count;

for (int i = 0; i < count; i++)
parameters[i].SetValue(defaultSettings.parameters[i]);
}
}
}
16 changes: 15 additions & 1 deletion PostProcessing/Runtime/PostProcessLayer.cs
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Expand Up @@ -35,7 +35,7 @@ public enum Antialiasing
public TemporalAntialiasing temporalAntialiasing;
public SubpixelMorphologicalAntialiasing subpixelMorphologicalAntialiasing;
public FastApproximateAntialiasing fastApproximateAntialiasing;
public Fog fog;
public DeferredFog fog;
public Dithering dithering;

public PostProcessDebugLayer debugLayer;
Expand Down Expand Up @@ -327,6 +327,13 @@ void BuildCommandBuffers()
TextureLerper.instance.BeginFrame(context);
UpdateSettingsIfNeeded(context);

// Fog effect settings
var fogBundle = GetBundle<Fog>();
if (fogBundle != null)
{
fogBundle.CastRenderer<FogRenderer>().ApplySettings(context, ref fog.excludeSkybox);
}

// Lighting & opaque-only effects
var aoBundle = GetBundle<AmbientOcclusion>();
var aoSettings = aoBundle.CastSettings<AmbientOcclusion>();
Expand Down Expand Up @@ -442,6 +449,13 @@ void OnPostRender()
if (RuntimeUtilities.scriptableRenderPipelineActive)
return;

// Restore original fog settings
var fogBundle = GetBundle<Fog>();
if (fogBundle != null)
{
fogBundle.CastRenderer<FogRenderer>().RestoreSettings(ref fog.excludeSkybox);
}

if (m_CurrentContext.IsTemporalAntialiasingActive())
{
m_Camera.ResetProjectionMatrix();
Expand Down
5 changes: 1 addition & 4 deletions PostProcessing/Runtime/PostProcessManager.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -271,10 +271,7 @@ void ReplaceData(PostProcessLayer postProcessLayer)
foreach (var settings in m_BaseSettings)
{
var target = postProcessLayer.GetBundle(settings.GetType()).settings;
int count = settings.parameters.Count;

for (int i = 0; i < count; i++)
target.parameters[i].SetValue(settings.parameters[i]);
target.Reset(settings);
}
}

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