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Optimize updating actor rendering entry with better thread locking that support async writes on actor update

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This commit is contained in:
Wojtek Figat
2025-06-19 14:04:06 +02:00
parent 4ac870f701
commit 2e10d776e9
3 changed files with 10 additions and 10 deletions
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14
Source/Engine/Level/Scene/SceneRendering.cpp
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@@ -43,7 +43,7 @@ FORCE_INLINE bool FrustumsListCull(const BoundingSphere& bounds, const Array<Bou
void SceneRendering::Draw(RenderContextBatch& renderContextBatch, DrawCategory category)
{
PROFILE_MEM(Graphics);
ScopeLock lock(Locker);
ConcurrentSystemLocker::ReadScope lock(Locker);
if (category == PreRender)
{
// Register scene
@@ -51,12 +51,12 @@ void SceneRendering::Draw(RenderContextBatch& renderContextBatch, DrawCategory c
renderContext.List->Scenes.Add(this);
// Add additional lock during scene rendering (prevents any Actors cache modifications on content streaming threads - eg. when model residency changes)
Locker.Lock();
Locker.Begin(false);
}
else if (category == PostRender)
{
// Release additional lock
Locker.Unlock();
Locker.End(false);
}
auto& view = renderContextBatch.GetMainContext().View;
auto& list = Actors[(int32)category];
@@ -127,7 +127,7 @@ void SceneRendering::CollectPostFxVolumes(RenderContext& renderContext)
void SceneRendering::Clear()
{
ScopeLock lock(Locker);
ConcurrentSystemLocker::WriteScope lock(Locker);
for (auto* listener : _listeners)
{
listener->OnSceneRenderingClear(this);
@@ -149,7 +149,7 @@ void SceneRendering::AddActor(Actor* a, int32& key)
return;
PROFILE_MEM(Graphics);
const int32 category = a->_drawCategory;
ScopeLock lock(Locker);
ConcurrentSystemLocker::WriteScope lock(Locker);
auto& list = Actors[category];
if (FreeActors[category].HasItems())
{
@@ -174,7 +174,7 @@ void SceneRendering::AddActor(Actor* a, int32& key)
void SceneRendering::UpdateActor(Actor* a, int32& key, ISceneRenderingListener::UpdateFlags flags)
{
const int32 category = a->_drawCategory;
ScopeLock lock(Locker);
ConcurrentSystemLocker::ReadScope lock(Locker); // Read-access only as list doesn't get resized (like Add/Remove do) so allow updating actors from different threads at once
auto& list = Actors[category];
if (list.Count() <= key) // Ignore invalid key softly
return;
@@ -193,7 +193,7 @@ void SceneRendering::UpdateActor(Actor* a, int32& key, ISceneRenderingListener::
void SceneRendering::RemoveActor(Actor* a, int32& key)
{
const int32 category = a->_drawCategory;
ScopeLock lock(Locker);
ConcurrentSystemLocker::WriteScope lock(Locker);
auto& list = Actors[category];
if (list.Count() > key) // Ignore invalid key softly (eg. list after batch clear during scene unload)
{