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Misc SurfaceData Optimizations (#7299)

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* Misc SurfaceData Optimizations.
This includes a few different optimizations found while trying to make the bulk query APIs faster:
* Switches mutexes over to shared_lock to optimize for the multi-reader-single-writer pattern
* Surface provider point creation now uses a pre-created set of masks to initialize with, and uses std::move() to move the created point into the output list instead of copying it.
* Splits CombineSortAndFilterNeightboringPoints so that the FilterPoints() can occur separately and efficiently with erase/remove_if, and avoids making a copy of the output points.
* Optimized SurfaceDataShapeComponent::ModifySurfacePoints
* Fixed potential bug where the sort wasn't stable since it only compared the Z value, and could have produced unexpected results for differing points with the exact same Z value.
* Fixed up a couple small bugs and missing checks in the unit tests

Signed-off-by: Mike Balfour <82224783+mbalfour-amzn@users.noreply.github.com>

* Fixed syntax on unit tests.

Signed-off-by: Mike Balfour <82224783+mbalfour-amzn@users.noreply.github.com>
This commit is contained in:
Mike Balfour
2022-02-01 10:44:14 -06:00
committed by GitHub
parent ff4529fc60
commit 3f63cf3546
12 changed files with 221 additions and 181 deletions
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Gems/SurfaceData/Code/Source/Components/SurfaceDataShapeComponent.cpp
+20 -20
View File
@@ -89,6 +89,7 @@ namespace SurfaceData
LmbrCentral::ShapeComponentNotificationsBus::Handler::BusConnect(GetEntityId());
// Update the cached shape data and bounds, then register the surface data provider / modifier
AssignSurfaceTagWeights(m_configuration.m_providerTags, 1.0f, m_newPointWeights);
UpdateShapeData();
}
@@ -115,7 +116,7 @@ namespace SurfaceData
// Clear the cached shape data
{
AZStd::lock_guard<decltype(m_cacheMutex)> lock(m_cacheMutex);
AZStd::unique_lock<decltype(m_cacheMutex)> lock(m_cacheMutex);
m_shapeBounds = AZ::Aabb::CreateNull();
m_shapeBoundsIsValid = false;
}
@@ -143,7 +144,7 @@ namespace SurfaceData
void SurfaceDataShapeComponent::GetSurfacePoints(const AZ::Vector3& inPosition, SurfacePointList& surfacePointList) const
{
AZStd::lock_guard<decltype(m_cacheMutex)> lock(m_cacheMutex);
AZStd::shared_lock<decltype(m_cacheMutex)> lock(m_cacheMutex);
if (m_shapeBoundsIsValid)
{
@@ -158,36 +159,35 @@ namespace SurfaceData
point.m_entityId = GetEntityId();
point.m_position = rayOrigin + intersectionDistance * rayDirection;
point.m_normal = AZ::Vector3::CreateAxisZ();
for (auto& tag : m_configuration.m_providerTags)
{
point.m_masks[tag] = 1.0f;
}
surfacePointList.push_back(point);
point.m_masks = m_newPointWeights;
surfacePointList.push_back(AZStd::move(point));
}
}
}
void SurfaceDataShapeComponent::ModifySurfacePoints(SurfacePointList& surfacePointList) const
{
AZ_PROFILE_FUNCTION(Entity);
AZStd::lock_guard<decltype(m_cacheMutex)> lock(m_cacheMutex);
AZStd::shared_lock<decltype(m_cacheMutex)> lock(m_cacheMutex);
if (m_shapeBoundsIsValid && !m_configuration.m_modifierTags.empty())
{
const AZ::EntityId entityId = GetEntityId();
for (auto& point : surfacePointList)
{
if (point.m_entityId != entityId && m_shapeBounds.Contains(point.m_position))
LmbrCentral::ShapeComponentRequestsBus::Event(
GetEntityId(),
[entityId, this, &surfacePointList](LmbrCentral::ShapeComponentRequestsBus::Events* shape)
{
bool inside = false;
LmbrCentral::ShapeComponentRequestsBus::EventResult(inside, GetEntityId(), &LmbrCentral::ShapeComponentRequestsBus::Events::IsPointInside, point.m_position);
if (inside)
for (auto& point : surfacePointList)
{
AddMaxValueForMasks(point.m_masks, m_configuration.m_modifierTags, 1.0f);
if (point.m_entityId != entityId && m_shapeBounds.Contains(point.m_position))
{
bool inside = shape->IsPointInside(point.m_position);
if (inside)
{
AddMaxValueForMasks(point.m_masks, m_configuration.m_modifierTags, 1.0f);
}
}
}
}
}
});
}
}
@@ -228,7 +228,7 @@ namespace SurfaceData
bool shapeValidAfterUpdate = false;
{
AZStd::lock_guard<decltype(m_cacheMutex)> lock(m_cacheMutex);
AZStd::unique_lock<decltype(m_cacheMutex)> lock(m_cacheMutex);
shapeValidBeforeUpdate = m_shapeBoundsIsValid;