public override void Build()
{
m_cubemapSize = GetCubemapResolutionFromQualityLevel(QualitySettings.GetQualityLevel());
m_spaceSkyMaterial = CoreUtils.CreateEngineMaterial("Hidden/SpaceSky");
m_spaceSkyCubemapRenderTexture = HDRenderUtilities.CreateReflectionProbeRenderTarget(m_cubemapSize);
}
public void RenderThrowWhenFrameSettingsIsNull()
{
Assert.Throws <ArgumentNullException>(() => HDRenderUtilities.Render(
default(CameraSettings),
default(CameraPositionSettings),
Texture2D.whiteTexture
));
}
public void RenderThrowWhenTargetIsNull()
{
Assert.Throws <ArgumentNullException>(() => HDRenderUtilities.Render(
default(CameraSettings),
default(CameraPositionSettings),
null
));
}
public void RenderThrowWhenFrameSettingsIsNull()
{
// should throw error that Texture2D is no RenderTexture
Assert.Throws <ArgumentException>(() => HDRenderUtilities.Render(
default(CameraSettings),
default(CameraPositionSettings),
Texture2D.whiteTexture
));
}
public void RenderThrowWhenTargetIsNotARenderTextureForTex2DRendering()
{
Assert.Throws <ArgumentException>(() => HDRenderUtilities.Render(
new CameraSettings
{
frameSettings = new FrameSettings()
},
default(CameraPositionSettings),
Texture2D.whiteTexture
));
}
internal static void RenderAndWriteToFile(
HDProbe probe, string targetFile,
RenderTexture cubeRT, RenderTexture planarRT,
out CameraSettings cameraSettings,
out CameraPositionSettings cameraPositionSettings
)
{
var settings = probe.settings;
switch (settings.type)
{
case ProbeSettings.ProbeType.ReflectionProbe:
{
var positionSettings = ProbeCapturePositionSettings.ComputeFrom(probe, null);
HDRenderUtilities.Render(probe.settings, positionSettings, cubeRT,
out cameraSettings, out cameraPositionSettings,
forceFlipY: true,
forceInvertBackfaceCulling: true, // Cubemap have an RHS standard, so we need to invert the face culling
(uint)StaticEditorFlags.ReflectionProbeStatic
);
HDBakingUtilities.CreateParentDirectoryIfMissing(targetFile);
Checkout(targetFile);
HDTextureUtilities.WriteTextureFileToDisk(cubeRT, targetFile);
break;
}
case ProbeSettings.ProbeType.PlanarProbe:
{
var planarProbe = (PlanarReflectionProbe)probe;
var positionSettings = ProbeCapturePositionSettings.ComputeFromMirroredReference(
probe,
planarProbe.referencePosition
);
HDRenderUtilities.Render(
settings,
positionSettings,
planarRT,
out cameraSettings, out cameraPositionSettings
);
HDBakingUtilities.CreateParentDirectoryIfMissing(targetFile);
Checkout(targetFile);
HDTextureUtilities.WriteTextureFileToDisk(planarRT, targetFile);
var renderData = new HDProbe.RenderData(cameraSettings, cameraPositionSettings);
var targetRenderDataFile = targetFile + ".renderData";
Checkout(targetRenderDataFile);
HDBakingUtilities.TrySerializeToDisk(renderData, targetRenderDataFile);
break;
}
default: throw new ArgumentOutOfRangeException(nameof(probe.settings.type));
}
}
protected override bool Update(BuiltinSkyParameters builtinParams)
{
var newResolution = GetCubemapResolutionFromQualityLevel(QualitySettings.GetQualityLevel());
if (m_cubemapSize != newResolution)
{
CoreUtils.Destroy(m_spaceSkyCubemapRenderTexture);
m_cubemapSize = newResolution;
m_spaceSkyCubemapRenderTexture = HDRenderUtilities.CreateReflectionProbeRenderTarget(m_cubemapSize);
m_prevHashCodeInitialized = false;
return(true);
}
return(false);
}
/// <summary>
/// Bakes the <paramref name="probe" /> and updates its baked texture.
///
/// Note: The update of the probe is persistent only in editor mode.
/// </summary>
/// <param name="probe">The probe to bake.</param>
/// <param name="path">The asset path to write the baked texture to.</param>
/// <param name="options">The options to use for the bake.</param>
/// <returns>
/// Returns <c>null</c> if successful. Otherwise, returns the error that occured.
/// The error can be:
/// * <see cref="ArgumentException" /> if the <paramref name="path" /> is invalid.
/// * <see cref="ArgumentNullException" /> if the <paramref name="probe" /> is <c>null</c>.
/// * <see cref="Exception" /> if the <paramref name="probe" /> is not supported. Only
/// This functional currently only supports <see cref="HDAdditionalReflectionData" /> probes.
/// </returns>
public static Exception BakeProbe([NotNull] HDProbe probe, [NotNull] string path, BakeProbeOptions options)
{
// Check arguments
if (probe == null || probe.Equals(null))
{
return(new ArgumentNullException(nameof(probe)));
}
if (string.IsNullOrEmpty(path))
{
return(new ArgumentException($"{nameof(path)} must not be empty or null."));
}
// We force RGBAHalf as we don't support 11-11-10 textures (only RT)
var probeFormat = GraphicsFormat.R16G16B16A16_SFloat;
switch (probe)
{
case HDAdditionalReflectionData _:
{
// Get the texture size from the probe
var textureSize = options.textureSize.Evaluate(probe);
// Render and write
var cubeRT = HDRenderUtilities.CreateReflectionProbeRenderTarget(textureSize, probeFormat);
HDBakedReflectionSystem.RenderAndWriteToFile(probe, path, cubeRT, null);
cubeRT.Release();
// Import asset at target location
AssetDatabase.ImportAsset(path);
HDBakedReflectionSystem.ImportAssetAt(probe, path);
// Assign to the probe the baked texture
var bakedTexture = AssetDatabase.LoadAssetAtPath <Texture>(path);
probe.SetTexture(ProbeSettings.Mode.Baked, bakedTexture);
// Mark probe as dirty
EditorUtility.SetDirty(probe);
return(null);
}
case PlanarReflectionProbe _:
return(new Exception("Planar reflection probe baking is not supported."));
default: return(new Exception($"Cannot handle probe type: {probe.GetType()}"));
}
}
static void Gizmos_CapturePoint(ReflectionProbe target)
{
if (sphere == null)
{
sphere = Resources.GetBuiltinResource <Mesh>("New-Sphere.fbx");
}
if (material == null)
{
material = new Material(Shader.Find("Debug/ReflectionProbePreview"));
}
var probe = target.GetComponent <HDAdditionalReflectionData>();
var probePositionSettings = ProbeCapturePositionSettings.ComputeFrom(probe, null);
HDRenderUtilities.ComputeCameraSettingsFromProbeSettings(
probe.settings, probePositionSettings,
out _, out var cameraPositionSettings
);
var capturePosition = cameraPositionSettings.position;
material.SetTexture("_Cubemap", probe.texture);
material.SetPass(0);
Graphics.DrawMeshNow(sphere, Matrix4x4.TRS(capturePosition, Quaternion.identity, Vector3.one * capturePointPreviewSize));
var ray = new Ray(capturePosition, Vector3.down);
if (Physics.Raycast(ray, out RaycastHit hit))
{
var startPoint = capturePosition - Vector3.up * 0.5f * capturePointPreviewSize;
var c = InfluenceVolumeUI.k_GizmoThemeColorBase;
c.a = 0.8f;
Handles.color = c;
Handles.zTest = UnityEngine.Rendering.CompareFunction.LessEqual;
Handles.DrawLine(startPoint, hit.point);
Handles.DrawWireDisc(hit.point, hit.normal, 0.5f);
c.a = 0.25f;
Handles.color = c;
Handles.zTest = UnityEngine.Rendering.CompareFunction.Greater;
Handles.DrawLine(capturePosition, hit.point);
Handles.DrawWireDisc(hit.point, hit.normal, 0.5f);
}
}
public override void Tick(
SceneStateHash sceneStateHash,
IScriptableBakedReflectionSystemStageNotifier handle
)
{
if (!AreAllOpenedSceneSaved())
{
handle.SetIsDone(true);
return;
}
// On the C# side, we don't have non blocking asset import APIs, and we don't want to block the
// UI when the user is editing the world.
// So, we skip the baking when the user is editing any UI control.
if (GUIUtility.hotControl != 0)
{
return;
}
if (!IsCurrentSRPValid(out HDRenderPipeline hdPipeline))
{
if (ShouldIssueWarningForCurrentSRP())
{
Debug.LogWarning("HDBakedReflectionSystem work with HDRP, " +
"Either switch your render pipeline or use a different reflection system. You may need to trigger a " +
"C# domain reload to initialize the appropriate reflection system. One way to do this is to compile a script.");
}
handle.ExitStage((int)BakingStages.ReflectionProbes);
handle.SetIsDone(true);
return;
}
var ambientProbeHash = sceneStateHash.ambientProbeHash;
var sceneObjectsHash = sceneStateHash.sceneObjectsHash;
var skySettingsHash = sceneStateHash.skySettingsHash;
DeleteCubemapAssets(true);
// Explanation of the algorithm:
// 1. First we create the hash of the world that can impact the reflection probes.
// 2. Then for each probe, we calculate a hash that represent what this specific probe should have baked.
// 3. We compare those hashes against the baked one and decide:
// a. If we have to remove a baked data
// b. If we have to bake a probe
// 4. Bake all required probes
// a. Bake probe that were added or modified
// b. Bake probe with a missing baked texture
// 5. Remove unused baked data
// 6. Update probe assets
// == 1. ==
var allProbeDependencyHash = new Hash128();
// TODO: All baked probes depend on custom probes (hash all custom probes and set as dependency)
// TODO: All baked probes depend on HDRP specific Light settings
HashUtilities.AppendHash(ref ambientProbeHash, ref allProbeDependencyHash);
HashUtilities.AppendHash(ref sceneObjectsHash, ref allProbeDependencyHash);
HashUtilities.AppendHash(ref skySettingsHash, ref allProbeDependencyHash);
var bakedProbes = HDProbeSystem.bakedProbes;
var bakedProbeCount = HDProbeSystem.bakedProbeCount;
// == 2. ==
var states = stackalloc HDProbeBakingState[bakedProbeCount];
// A list of indices of probe we may want to force to rebake, even if the hashes matches.
// Usually, add a probe when something external to its state or the world state forces the bake.
var probeForcedToBakeIndices = stackalloc int[bakedProbeCount];
var probeForcedToBakeIndicesCount = 0;
var probeForcedToBakeIndicesList = new ListBuffer <int>(
probeForcedToBakeIndices,
&probeForcedToBakeIndicesCount,
bakedProbeCount
);
ComputeProbeInstanceID(bakedProbes, states);
ComputeProbeSettingsHashes(bakedProbes, states);
// TODO: Handle bounce dependency here
ComputeProbeBakingHashes(bakedProbeCount, allProbeDependencyHash, states);
// Force to rebake probe with missing baked texture
for (var i = 0; i < bakedProbeCount; ++i)
{
var instanceId = states[i].instanceID;
var probe = (HDProbe)EditorUtility.InstanceIDToObject(instanceId);
if (probe.bakedTexture != null && !probe.bakedTexture.Equals(null))
{
continue;
}
probeForcedToBakeIndicesList.TryAdd(i);
}
CoreUnsafeUtils.QuickSort <HDProbeBakingState, Hash128, HDProbeBakingState.ProbeBakingHash>(
bakedProbeCount, states
);
int operationCount = 0, addCount = 0, remCount = 0;
var maxProbeCount = Mathf.Max(bakedProbeCount, m_HDProbeBakedStates.Length);
var addIndices = stackalloc int[maxProbeCount];
var remIndices = stackalloc int[maxProbeCount];
if (m_HDProbeBakedStates.Length == 0)
{
for (int i = 0; i < bakedProbeCount; ++i)
{
addIndices[addCount++] = i;
}
operationCount = addCount;
}
else
{
fixed(HDProbeBakedState *oldBakedStates = &m_HDProbeBakedStates[0])
{
// == 3. ==
// Compare hashes between baked probe states and desired probe states
operationCount = CoreUnsafeUtils.CompareHashes <
HDProbeBakedState, HDProbeBakedState.ProbeBakedHash,
HDProbeBakingState, HDProbeBakingState.ProbeBakingHash
> (
m_HDProbeBakedStates.Length, oldBakedStates, // old hashes
bakedProbeCount, states, // new hashes
addIndices, remIndices,
out addCount, out remCount
);
}
}
if (operationCount > 0 || probeForcedToBakeIndicesList.Count > 0)
{
// == 4. ==
var cubemapSize = (int)hdPipeline.currentPlatformRenderPipelineSettings.lightLoopSettings.reflectionCubemapSize;
// We force RGBAHalf as we don't support 11-11-10 textures (only RT)
var probeFormat = GraphicsFormat.R16G16B16A16_SFloat;
var cubeRT = HDRenderUtilities.CreateReflectionProbeRenderTarget(cubemapSize, probeFormat);
handle.EnterStage(
(int)BakingStages.ReflectionProbes,
string.Format("Reflection Probes | {0} jobs", addCount),
0
);
// Compute indices of probes to bake: added, modified probe or with a missing baked texture.
var toBakeIndices = stackalloc int[bakedProbeCount];
var toBakeIndicesCount = 0;
var toBakeIndicesList = new ListBuffer <int>(toBakeIndices, &toBakeIndicesCount, bakedProbeCount);
{
// Note: we will add probes from change check and baked texture missing check.
// So we can add at most 2 time the probe in the list.
var toBakeIndicesTmp = stackalloc int[bakedProbeCount * 2];
var toBakeIndicesTmpCount = 0;
var toBakeIndicesTmpList =
new ListBuffer <int>(toBakeIndicesTmp, &toBakeIndicesTmpCount, bakedProbeCount * 2);
// Add the indices from the added or modified detection check
toBakeIndicesTmpList.TryCopyFrom(addIndices, addCount);
// Add the probe with missing baked texture check
probeForcedToBakeIndicesList.TryCopyTo(toBakeIndicesTmpList);
// Sort indices
toBakeIndicesTmpList.QuickSort();
// Add to final list without the duplicates
var lastValue = int.MaxValue;
for (var i = 0; i < toBakeIndicesTmpList.Count; ++i)
{
if (lastValue == toBakeIndicesTmpList.GetUnchecked(i))
{
// Skip duplicates
continue;
}
lastValue = toBakeIndicesTmpList.GetUnchecked(i);
toBakeIndicesList.TryAdd(lastValue);
}
}
// Render probes that were added or modified
for (int i = 0; i < toBakeIndicesList.Count; ++i)
{
handle.EnterStage(
(int)BakingStages.ReflectionProbes,
string.Format("Reflection Probes | {0} jobs", addCount),
i / (float)toBakeIndicesCount
);
var index = toBakeIndicesList.GetUnchecked(i);
var instanceId = states[index].instanceID;
var probe = (HDProbe)EditorUtility.InstanceIDToObject(instanceId);
var cacheFile = GetGICacheFileForHDProbe(states[index].probeBakingHash);
// Get from cache or render the probe
if (!File.Exists(cacheFile))
{
var planarRT = HDRenderUtilities.CreatePlanarProbeRenderTarget((int)probe.resolution, probeFormat);
RenderAndWriteToFile(probe, cacheFile, cubeRT, planarRT);
planarRT.Release();
}
}
cubeRT.Release();
// Copy texture from cache
for (int i = 0; i < toBakeIndicesList.Count; ++i)
{
var index = toBakeIndicesList.GetUnchecked(i);
var instanceId = states[index].instanceID;
var probe = (HDProbe)EditorUtility.InstanceIDToObject(instanceId);
var cacheFile = GetGICacheFileForHDProbe(states[index].probeBakingHash);
if (string.IsNullOrEmpty(probe.gameObject.scene.path))
{
continue;
}
Assert.IsTrue(File.Exists(cacheFile));
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
HDBakingUtilities.CreateParentDirectoryIfMissing(bakedTexturePath);
Checkout(bakedTexturePath);
// Checkout will make those file writeable, but this is not immediate,
// so we retries when this fails.
if (!HDEditorUtils.CopyFileWithRetryOnUnauthorizedAccess(cacheFile, bakedTexturePath))
{
return;
}
}
// AssetPipeline bug
// Sometimes, the baked texture reference is destroyed during 'AssetDatabase.StopAssetEditing()'
// thus, the reference to the baked texture in the probe is lost
// Although, importing twice the texture seems to workaround the issue
for (int j = 0; j < 2; ++j)
{
AssetDatabase.StartAssetEditing();
for (int i = 0; i < bakedProbeCount; ++i)
{
var index = toBakeIndicesList.GetUnchecked(i);
var instanceId = states[index].instanceID;
var probe = (HDProbe)EditorUtility.InstanceIDToObject(instanceId);
if (string.IsNullOrEmpty(probe.gameObject.scene.path))
{
continue;
}
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
AssetDatabase.ImportAsset(bakedTexturePath);
ImportAssetAt(probe, bakedTexturePath);
}
AssetDatabase.StopAssetEditing();
}
// Import assets
AssetDatabase.StartAssetEditing();
for (int i = 0; i < toBakeIndicesList.Count; ++i)
{
var index = toBakeIndicesList.GetUnchecked(i);
var instanceId = states[index].instanceID;
var probe = (HDProbe)EditorUtility.InstanceIDToObject(instanceId);
if (string.IsNullOrEmpty(probe.gameObject.scene.path))
{
continue;
}
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
var bakedTexture = AssetDatabase.LoadAssetAtPath <Texture>(bakedTexturePath);
Assert.IsNotNull(bakedTexture, "The baked texture was imported before, " +
"so it must exists in AssetDatabase");
probe.SetTexture(ProbeSettings.Mode.Baked, bakedTexture);
EditorUtility.SetDirty(probe);
}
AssetDatabase.StopAssetEditing();
// == 5. ==
// Create new baked state array
var targetSize = m_HDProbeBakedStates.Length - remCount + toBakeIndicesList.Count;
var targetBakedStates = stackalloc HDProbeBakedState[targetSize];
// Copy baked state that are not removed
var targetI = 0;
for (int i = 0; i < m_HDProbeBakedStates.Length; ++i)
{
if (CoreUnsafeUtils.IndexOf(remIndices, remCount, i) != -1)
{
continue;
}
Assert.IsTrue(targetI < targetSize);
targetBakedStates[targetI++] = m_HDProbeBakedStates[i];
}
// Add new baked states
for (int i = 0; i < toBakeIndicesList.Count; ++i)
{
var state = states[toBakeIndicesList.GetUnchecked(i)];
Assert.IsTrue(targetI < targetSize);
targetBakedStates[targetI++] = new HDProbeBakedState
{
instanceID = state.instanceID,
probeBakedHash = state.probeBakingHash
};
}
CoreUnsafeUtils.QuickSort <HDProbeBakedState, Hash128, HDProbeBakedState.ProbeBakedHash>(
targetI, targetBakedStates
);
Array.Resize(ref m_HDProbeBakedStates, targetSize);
if (targetSize > 0)
{
fixed(HDProbeBakedState *bakedStates = &m_HDProbeBakedStates[0])
{
UnsafeUtility.MemCpy(
bakedStates,
targetBakedStates,
sizeof(HDProbeBakedState) * targetSize
);
}
}
// Update state hash
Array.Resize(ref m_StateHashes, m_HDProbeBakedStates.Length);
for (int i = 0; i < m_HDProbeBakedStates.Length; ++i)
{
m_StateHashes[i] = m_HDProbeBakedStates[i].probeBakedHash;
}
stateHashes = m_StateHashes;
}
handle.ExitStage((int)BakingStages.ReflectionProbes);
handle.SetIsDone(true);
}
public static bool BakeProbes(IEnumerable <HDProbe> bakedProbes)
{
if (!(RenderPipelineManager.currentPipeline is HDRenderPipeline hdPipeline))
{
Debug.LogWarning("HDBakedReflectionSystem only works with HDRP, " +
"please switch your render pipeline or use another reflection probe system.");
return(false);
}
hdPipeline.reflectionProbeBaking = true;
var cubemapSize = (int)hdPipeline.currentPlatformRenderPipelineSettings.lightLoopSettings.reflectionCubemapSize;
// We force RGBAHalf as we don't support 11-11-10 textures (only RT)
var probeFormat = GraphicsFormat.R16G16B16A16_SFloat;
var cubeRT = HDRenderUtilities.CreateReflectionProbeRenderTarget(cubemapSize, probeFormat);
// Render and write the result to disk
foreach (var probe in bakedProbes)
{
if (string.IsNullOrEmpty(probe.gameObject.scene.path))
{
continue;
}
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
var planarRT = HDRenderUtilities.CreatePlanarProbeRenderTarget((int)probe.resolution, probeFormat);
RenderAndWriteToFile(probe, bakedTexturePath, cubeRT, planarRT);
planarRT.Release();
}
// AssetPipeline bug
// Sometimes, the baked texture reference is destroyed during 'AssetDatabase.StopAssetEditing()'
// thus, the reference to the baked texture in the probe is lost
// Although, importing twice the texture seems to workaround the issue
for (int j = 0; j < 2; ++j)
{
AssetDatabase.StartAssetEditing();
foreach (var probe in bakedProbes)
{
if (string.IsNullOrEmpty(probe.gameObject.scene.path))
{
continue;
}
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
AssetDatabase.ImportAsset(bakedTexturePath);
ImportAssetAt(probe, bakedTexturePath);
}
AssetDatabase.StopAssetEditing();
}
AssetDatabase.StartAssetEditing();
foreach (var probe in bakedProbes)
{
if (string.IsNullOrEmpty(probe.gameObject.scene.path))
{
continue;
}
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
// Get or create the baked texture asset for the probe
var bakedTexture = AssetDatabase.LoadAssetAtPath <Texture>(bakedTexturePath);
Assert.IsNotNull(bakedTexture, "The baked texture was imported before, " +
"so it must exists in AssetDatabase");
// Update import settings
ImportAssetAt(probe, bakedTexturePath);
probe.SetTexture(ProbeSettings.Mode.Baked, bakedTexture);
AssignRenderData(probe, bakedTexturePath);
EditorUtility.SetDirty(probe);
}
AssetDatabase.StopAssetEditing();
// case 1158677
// The AssetPipeline will destroy and recreate the textures
// So all transient data will be lost after the call to `AssetDatabase.StopAssetEditing`
// Here, we increment the updateCount to with an arbitrary number to force the reflection probe cache
// to update the texture.
// updateCount is a transient data, so don't execute this code before the asset reload.
{
UnityEngine.Random.InitState((int)(1000 * EditorApplication.timeSinceStartup));
foreach (var probe in bakedProbes)
{
var c = UnityEngine.Random.Range(2, 10);
while (probe.texture.updateCount < c)
{
probe.texture.IncrementUpdateCount();
}
}
}
cubeRT.Release();
hdPipeline.reflectionProbeBaking = false;
return(true);
}
public override void Tick(
SceneStateHash sceneStateHash,
IScriptableBakedReflectionSystemStageNotifier handle
)
{
if (!AreAllOpenedSceneSaved())
{
handle.SetIsDone(true);
return;
}
// On the C# side, we don't have non blocking asset import APIs, and we don't want to block the
// UI when the user is editing the world.
// So, we skip the baking when the user is editing any UI control.
if (GUIUtility.hotControl != 0)
{
return;
}
if (!IsCurrentSRPValid(out HDRenderPipeline hdPipeline))
{
if (ShouldIssueWarningForCurrentSRP())
{
Debug.LogWarning("HDBakedReflectionSystem work with HDRP, " +
"please switch your render pipeline or use another reflection system");
}
handle.ExitStage((int)BakingStages.ReflectionProbes);
handle.SetIsDone(true);
return;
}
var ambientProbeHash = sceneStateHash.ambientProbeHash;
var sceneObjectsHash = sceneStateHash.sceneObjectsHash;
var skySettingsHash = sceneStateHash.skySettingsHash;
DeleteCubemapAssets(true);
// Explanation of the algorithm:
// 1. First we create the hash of the world that can impact the reflection probes.
// 2. Then for each probe, we calculate a hash that represent what this specific probe should have baked.
// 3. We compare those hashes against the baked one and decide:
// a. If we have to remove a baked data
// b. If we have to bake a probe
// 4. Bake all required probes
// 5. Remove unused baked data
// 6. Update probe assets
// == 1. ==
var allProbeDependencyHash = new Hash128();
// TODO: All baked probes depend on custom probes (hash all custom probes and set as dependency)
// TODO: All baked probes depend on HDRP specific Light settings
HashUtilities.AppendHash(ref ambientProbeHash, ref allProbeDependencyHash);
HashUtilities.AppendHash(ref sceneObjectsHash, ref allProbeDependencyHash);
HashUtilities.AppendHash(ref skySettingsHash, ref allProbeDependencyHash);
var bakedProbes = HDProbeSystem.bakedProbes;
// == 2. ==
var states = stackalloc HDProbeBakingState[bakedProbes.Count];
ComputeProbeInstanceID(bakedProbes, states);
ComputeProbeSettingsHashes(bakedProbes, states);
// TODO: Handle bounce dependency here
ComputeProbeBakingHashes(bakedProbes.Count, allProbeDependencyHash, states);
CoreUnsafeUtils.QuickSort <HDProbeBakingState, Hash128, HDProbeBakingState.ProbeBakingHash>(
bakedProbes.Count, states
);
int operationCount = 0, addCount = 0, remCount = 0;
var maxProbeCount = Mathf.Max(bakedProbes.Count, m_HDProbeBakedStates.Length);
var addIndices = stackalloc int[maxProbeCount];
var remIndices = stackalloc int[maxProbeCount];
if (m_HDProbeBakedStates.Length == 0)
{
for (int i = 0; i < bakedProbes.Count; ++i)
{
addIndices[addCount++] = i;
}
operationCount = addCount;
}
else
{
fixed(HDProbeBakedState *oldBakedStates = &m_HDProbeBakedStates[0])
{
// == 3. ==
// Compare hashes between baked probe states and desired probe states
operationCount = CoreUnsafeUtils.CompareHashes <
HDProbeBakedState, HDProbeBakedState.ProbeBakedHash,
HDProbeBakingState, HDProbeBakingState.ProbeBakingHash
> (
m_HDProbeBakedStates.Length, oldBakedStates, // old hashes
bakedProbes.Count, states, // new hashes
addIndices, remIndices,
out addCount, out remCount
);
}
}
if (operationCount > 0)
{
// == 4. ==
var cubemapSize = (int)hdPipeline.currentPlatformRenderPipelineSettings.lightLoopSettings.reflectionCubemapSize;
var planarSize = (int)hdPipeline.currentPlatformRenderPipelineSettings.lightLoopSettings.planarReflectionTextureSize;
var cubeRT = HDRenderUtilities.CreateReflectionProbeRenderTarget(cubemapSize);
var planarRT = HDRenderUtilities.CreatePlanarProbeRenderTarget(planarSize);
handle.EnterStage(
(int)BakingStages.ReflectionProbes,
string.Format("Reflection Probes | {0} jobs", addCount),
0
);
// Render probes
for (int i = 0; i < addCount; ++i)
{
handle.EnterStage(
(int)BakingStages.ReflectionProbes,
string.Format("Reflection Probes | {0} jobs", addCount),
i / (float)addCount
);
var index = addIndices[i];
var instanceId = states[index].instanceID;
var probe = (HDProbe)EditorUtility.InstanceIDToObject(instanceId);
var cacheFile = GetGICacheFileForHDProbe(states[index].probeBakingHash);
// Get from cache or render the probe
if (!File.Exists(cacheFile))
{
RenderAndWriteToFile(probe, cacheFile, cubeRT, planarRT);
}
}
cubeRT.Release();
planarRT.Release();
// Copy texture from cache
for (int i = 0; i < addCount; ++i)
{
var index = addIndices[i];
var instanceId = states[index].instanceID;
var probe = (HDProbe)EditorUtility.InstanceIDToObject(instanceId);
var cacheFile = GetGICacheFileForHDProbe(states[index].probeBakingHash);
Assert.IsTrue(File.Exists(cacheFile));
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
HDBakingUtilities.CreateParentDirectoryIfMissing(bakedTexturePath);
Checkout(bakedTexturePath);
// Checkout will make those file writeable, but this is not immediate,
// so we retries when this fails.
if (!HDEditorUtils.CopyFileWithRetryOnUnauthorizedAccess(cacheFile, bakedTexturePath))
{
return;
}
}
// AssetPipeline bug
// Sometimes, the baked texture reference is destroyed during 'AssetDatabase.StopAssetEditing()'
// thus, the reference to the baked texture in the probe is lost
// Although, importing twice the texture seems to workaround the issue
for (int j = 0; j < 2; ++j)
{
AssetDatabase.StartAssetEditing();
for (int i = 0; i < bakedProbes.Count; ++i)
{
var index = addIndices[i];
var instanceId = states[index].instanceID;
var probe = (HDProbe)EditorUtility.InstanceIDToObject(instanceId);
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
AssetDatabase.ImportAsset(bakedTexturePath);
ImportAssetAt(probe, bakedTexturePath);
}
AssetDatabase.StopAssetEditing();
}
// Import assets
AssetDatabase.StartAssetEditing();
for (int i = 0; i < addCount; ++i)
{
var index = addIndices[i];
var instanceId = states[index].instanceID;
var probe = (HDProbe)EditorUtility.InstanceIDToObject(instanceId);
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
var bakedTexture = AssetDatabase.LoadAssetAtPath <Texture>(bakedTexturePath);
Assert.IsNotNull(bakedTexture, "The baked texture was imported before, " +
"so it must exists in AssetDatabase");
probe.SetTexture(ProbeSettings.Mode.Baked, bakedTexture);
EditorUtility.SetDirty(probe);
}
AssetDatabase.StopAssetEditing();
// == 5. ==
// Create new baked state array
var targetSize = m_HDProbeBakedStates.Length + addCount - remCount;
var targetBakedStates = stackalloc HDProbeBakedState[targetSize];
// Copy baked state that are not removed
var targetI = 0;
for (int i = 0; i < m_HDProbeBakedStates.Length; ++i)
{
if (CoreUnsafeUtils.IndexOf(remIndices, remCount, i) != -1)
{
continue;
}
targetBakedStates[targetI++] = m_HDProbeBakedStates[i];
}
// Add new baked states
for (int i = 0; i < addCount; ++i)
{
var state = states[addIndices[i]];
targetBakedStates[targetI++] = new HDProbeBakedState
{
instanceID = state.instanceID,
probeBakedHash = state.probeBakingHash
};
}
CoreUnsafeUtils.QuickSort <HDProbeBakedState, Hash128, HDProbeBakedState.ProbeBakedHash>(
targetI, targetBakedStates
);
Array.Resize(ref m_HDProbeBakedStates, targetSize);
if (targetSize > 0)
{
fixed(HDProbeBakedState *bakedStates = &m_HDProbeBakedStates[0])
{
UnsafeUtility.MemCpy(
bakedStates,
targetBakedStates,
sizeof(HDProbeBakedState) * targetSize
);
}
}
// Update state hash
Array.Resize(ref m_StateHashes, m_HDProbeBakedStates.Length);
for (int i = 0; i < m_HDProbeBakedStates.Length; ++i)
{
m_StateHashes[i] = m_HDProbeBakedStates[i].probeBakedHash;
}
stateHashes = m_StateHashes;
}
handle.ExitStage((int)BakingStages.ReflectionProbes);
handle.SetIsDone(true);
}
public static bool BakeProbes(IList <HDProbe> bakedProbes)
{
if (!(RenderPipelineManager.currentPipeline is HDRenderPipeline hdPipeline))
{
Debug.LogWarning("HDBakedReflectionSystem work with HDRP, " +
"please switch your render pipeline or use another reflection system");
return(false);
}
var cubemapSize = (int)hdPipeline.currentPlatformRenderPipelineSettings.lightLoopSettings.reflectionCubemapSize;
var planarSize = (int)hdPipeline.currentPlatformRenderPipelineSettings.lightLoopSettings.planarReflectionTextureSize;
var cubeRT = HDRenderUtilities.CreateReflectionProbeRenderTarget(cubemapSize);
var planarRT = HDRenderUtilities.CreatePlanarProbeRenderTarget(planarSize);
// Render and write the result to disk
for (int i = 0; i < bakedProbes.Count; ++i)
{
var probe = bakedProbes[i];
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
RenderAndWriteToFile(probe, bakedTexturePath, cubeRT, planarRT);
}
// AssetPipeline bug
// Sometimes, the baked texture reference is destroyed during 'AssetDatabase.StopAssetEditing()'
// thus, the reference to the baked texture in the probe is lost
// Although, importing twice the texture seems to workaround the issue
for (int j = 0; j < 2; ++j)
{
AssetDatabase.StartAssetEditing();
for (int i = 0; i < bakedProbes.Count; ++i)
{
var probe = bakedProbes[i];
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
AssetDatabase.ImportAsset(bakedTexturePath);
ImportAssetAt(probe, bakedTexturePath);
}
AssetDatabase.StopAssetEditing();
}
AssetDatabase.StartAssetEditing();
for (int i = 0; i < bakedProbes.Count; ++i)
{
var probe = bakedProbes[i];
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
// Get or create the baked texture asset for the probe
var bakedTexture = AssetDatabase.LoadAssetAtPath <Texture>(bakedTexturePath);
Assert.IsNotNull(bakedTexture, "The baked texture was imported before, " +
"so it must exists in AssetDatabase");
// Update import settings
ImportAssetAt(probe, bakedTexturePath);
probe.SetTexture(ProbeSettings.Mode.Baked, bakedTexture);
AssignRenderData(probe, bakedTexturePath);
EditorUtility.SetDirty(probe);
}
AssetDatabase.StopAssetEditing();
// case 1158677
// The AssetPipeline will destroy and recreate the textures
// So all transient data will be lost after the call to `AssetDatabase.StopAssetEditing`
// Here, we increment the updateCount to with an arbitrary number to force the reflection probe cache
// to update the texture.
// updateCount is a transient data, so don't execute this code before the asset reload.
{
UnityEngine.Random.InitState((int)Time.realtimeSinceStartup);
for (int i = 0; i < bakedProbes.Count; ++i)
{
var probe = bakedProbes[i];
var c = UnityEngine.Random.Range(2, 10);
while (probe.texture.updateCount < c)
{
probe.texture.IncrementUpdateCount();
}
}
}
cubeRT.Release();
planarRT.Release();
return(true);
}
public override void Build()
{
m_spaceSkyMaterial = CoreUtils.CreateEngineMaterial("Hidden/SpaceSky");
m_spaceSkyCubemapRenderTexture = HDRenderUtilities.CreateReflectionProbeRenderTarget(4096);
}
public static bool BakeProbes(IList <HDProbe> bakedProbes)
{
if (!(RenderPipelineManager.currentPipeline is HDRenderPipeline hdPipeline))
{
Debug.LogWarning("HDBakedReflectionSystem work with HDRP, " +
"please switch your render pipeline or use another reflection system");
return(false);
}
var cubemapSize = (int)hdPipeline.currentPlatformRenderPipelineSettings.lightLoopSettings.reflectionCubemapSize;
var planarSize = (int)hdPipeline.currentPlatformRenderPipelineSettings.lightLoopSettings.planarReflectionTextureSize;
var cubeRT = HDRenderUtilities.CreateReflectionProbeRenderTarget(cubemapSize);
var planarRT = HDRenderUtilities.CreatePlanarProbeRenderTarget(planarSize);
// Render and write the result to disk
for (int i = 0; i < bakedProbes.Count; ++i)
{
var probe = bakedProbes[i];
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
RenderAndWriteToFile(probe, bakedTexturePath, cubeRT, planarRT);
}
// AssetPipeline bug
// Sometimes, the baked texture reference is destroyed during 'AssetDatabase.StopAssetEditing()'
// thus, the reference to the baked texture in the probe is lost
// Although, importing twice the texture seems to workaround the issue
for (int j = 0; j < 2; ++j)
{
AssetDatabase.StartAssetEditing();
for (int i = 0; i < bakedProbes.Count; ++i)
{
var probe = bakedProbes[i];
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
AssetDatabase.ImportAsset(bakedTexturePath);
ImportAssetAt(probe, bakedTexturePath);
}
AssetDatabase.StopAssetEditing();
}
AssetDatabase.StartAssetEditing();
for (int i = 0; i < bakedProbes.Count; ++i)
{
var probe = bakedProbes[i];
var bakedTexturePath = HDBakingUtilities.GetBakedTextureFilePath(probe);
// Get or create the baked texture asset for the probe
var bakedTexture = AssetDatabase.LoadAssetAtPath <Texture>(bakedTexturePath);
Assert.IsNotNull(bakedTexture, "The baked texture was imported before, " +
"so it must exists in AssetDatabase");
// Update import settings
ImportAssetAt(probe, bakedTexturePath);
probe.SetTexture(ProbeSettings.Mode.Baked, bakedTexture);
AssignRenderData(probe, bakedTexturePath);
EditorUtility.SetDirty(probe);
}
AssetDatabase.StopAssetEditing();
cubeRT.Release();
planarRT.Release();
return(true);
}
