Flax/FlaxEngine
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Optimize scene rendering loop to cache more data on stack

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This commit is contained in:
Wojciech Figat
2026-04-28 13:07:19 +02:00
parent ad46b74f6a
commit c8b06ba7ec
1 changed files with 9 additions and 6 deletions
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Source/Engine/Level/Scene/SceneRendering.cpp
+9 -6
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@@ -236,8 +236,8 @@ void SceneRendering::RemoveActor(Actor* a, int32& key)
}
#define FOR_EACH_BATCH_ACTOR const int64 count = _drawListSize; while (true) { const int64 index = Platform::InterlockedIncrement(&_drawListIndex); if (index >= count) break; auto e = _drawListData[index];
#define CHECK_ACTOR ((view.RenderLayersMask.Mask & e.LayerMask) && (e.NoCulling || FrustumsListCull(e.Bounds, _drawFrustumsData)))
#define CHECK_ACTOR_SINGLE_FRUSTUM ((view.RenderLayersMask.Mask & e.LayerMask) && (e.NoCulling || view.CullingFrustum.Intersects(e.Bounds)))
#define CHECK_ACTOR ((viewRenderLayersMask & e.LayerMask) && (e.NoCulling || FrustumsListCull(e.Bounds, _drawFrustumsData)))
#define CHECK_ACTOR_SINGLE_FRUSTUM ((viewRenderLayersMask & e.LayerMask) && (e.NoCulling || viewCullingFrustum.Intersects(e.Bounds)))
#if SCENE_RENDERING_USE_PROFILER_PER_ACTOR
#define DRAW_ACTOR(mode) PROFILE_CPU_ACTOR(e.Actor); e.Actor->Draw(mode)
#else
@@ -250,20 +250,23 @@ void SceneRendering::DrawActorsJob(int32)
PROFILE_MEM(Graphics);
auto& mainContext = _drawBatch->GetMainContext();
const auto& view = mainContext.View;
const Vector3 viewOrigin = view.Origin;
const uint32 viewRenderLayersMask = view.RenderLayersMask.Mask;
if (view.StaticFlagsMask != StaticFlags::None)
{
// Static-flags culling
FOR_EACH_BATCH_ACTOR
e.Bounds.Center -= view.Origin;
e.Bounds.Center -= viewOrigin;
if (CHECK_ACTOR && (e.Actor->GetStaticFlags() & view.StaticFlagsMask) == view.StaticFlagsCompare)
{
DRAW_ACTOR(*_drawBatch);
}
}
}
else if (view.Origin.IsZero() && _drawFrustumsData.Count() == 1)
else if (viewOrigin.IsZero() && _drawFrustumsData.Count() == 1)
{
// Fast path for no origin shifting with a single context
const BoundingFrustum viewCullingFrustum = view.CullingFrustum;
FOR_EACH_BATCH_ACTOR
if (CHECK_ACTOR_SINGLE_FRUSTUM)
{
@@ -271,7 +274,7 @@ void SceneRendering::DrawActorsJob(int32)
}
}
}
else if (view.Origin.IsZero())
else if (viewOrigin.IsZero())
{
// Fast path for no origin shifting
FOR_EACH_BATCH_ACTOR
@@ -285,7 +288,7 @@ void SceneRendering::DrawActorsJob(int32)
{
// Generic case
FOR_EACH_BATCH_ACTOR
e.Bounds.Center -= view.Origin;
e.Bounds.Center -= viewOrigin;
if (CHECK_ACTOR)
{
DRAW_ACTOR(*_drawBatch);