Jeremy Ong
df9b4d4a2f
(to be supplanted by registered budgets in the future) Signed-off-by: Jeremy Ong <jcong@amazon.com>
122 lines
4.5 KiB
C++
122 lines
4.5 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#include "EntityVisibilityQuery.h"
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#include <AzCore/Console/Console.h>
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#include <AzCore/Debug/Profiler.h>
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#include <AzCore/Component/Entity.h>
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#include <AzCore/Math/ShapeIntersection.h>
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#include <AzFramework/Entity/EntityDebugDisplayBus.h>
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#include <AzFramework/Visibility/IVisibilitySystem.h>
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#include <AzFramework/Viewport/ViewportScreen.h>
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AZ_CVAR(bool, ed_visibility_pinCamera, false, nullptr, AZ::ConsoleFunctorFlags::Null, "Pin the camera in-place");
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AZ_CVAR(
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bool, ed_visibility_showDebug, false, nullptr, AZ::ConsoleFunctorFlags::Null,
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"Draw debug output for the IVisibilitySystem");
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AZ_CVAR(
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bool, ed_visibility_debugFrustumFromPlanes, false, nullptr, AZ::ConsoleFunctorFlags::Null,
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"Draw debug output for the camera view frustum from its interecting planes");
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AZ_CVAR(
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bool, ed_visibility_debugFrustumFromAttributes, false, nullptr, AZ::ConsoleFunctorFlags::Null,
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"Draw debug output for the camera view frustum from its attributes");
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AZ_CVAR(
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bool, ed_visibility_debugOctree, true, nullptr, AZ::ConsoleFunctorFlags::Null,
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"Draw debug output for the octree system (see also debugOctreeEntriesInBounds and debugOctreeEntriesInFrustum)");
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namespace AzFramework
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{
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void EntityVisibilityQuery::UpdateVisibility(const AzFramework::CameraState& cameraState)
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{
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AZ_PROFILE_FUNCTION(AzFramework);
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auto* visSystem = AZ::Interface<AzFramework::IVisibilitySystem>::Get();
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if (!visSystem)
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{
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return;
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}
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const bool updateLastCameraState = !ed_visibility_pinCamera || !m_lastCameraState.has_value();
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if (updateLastCameraState)
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{
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m_lastCameraState = cameraState;
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}
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const auto viewFrustum = AzFramework::FrustumFromCameraState(m_lastCameraState.value());
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m_octreeDebug.Clear();
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m_visibleEntityIds.clear();
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visSystem->GetDefaultVisibilityScene()->Enumerate(
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viewFrustum,
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[&viewFrustum, &visibleEntityIdsOut = m_visibleEntityIds,
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&octreeDebug = m_octreeDebug](const AzFramework::IVisibilityScene::NodeData& nodeData)
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{
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if (ed_visibility_showDebug)
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{
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octreeDebug.m_nodeBounds.push_back(nodeData.m_bounds);
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}
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visibleEntityIdsOut.reserve(visibleEntityIdsOut.size() + nodeData.m_entries.size());
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for (const auto* visibilityEntry : nodeData.m_entries)
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{
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if (ed_visibility_showDebug)
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{
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octreeDebug.m_entryAabbsInBounds.push_back(visibilityEntry->m_boundingVolume);
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}
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if (visibilityEntry->m_typeFlags != AzFramework::VisibilityEntry::TYPE_Entity)
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{
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continue;
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}
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if (!AZ::ShapeIntersection::Overlaps(viewFrustum, visibilityEntry->m_boundingVolume))
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{
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continue;
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}
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if (ed_visibility_showDebug)
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{
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octreeDebug.m_entryAabbsInFrustum.push_back(visibilityEntry->m_boundingVolume);
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}
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AZ::EntityId entityId = static_cast<AZ::Entity*>(visibilityEntry->m_userData)->GetId();
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visibleEntityIdsOut.push_back(entityId);
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}
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});
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}
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void EntityVisibilityQuery::DisplayVisibility(AzFramework::DebugDisplayRequests& debugDisplay)
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{
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if (ed_visibility_showDebug)
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{
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if (m_lastCameraState.has_value())
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{
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debugDisplay.SetColor(AZ::Colors::White);
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if (ed_visibility_debugFrustumFromPlanes)
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{
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DisplayFrustum(AzFramework::FrustumFromCameraState(m_lastCameraState.value()), debugDisplay);
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}
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if (ed_visibility_debugFrustumFromAttributes)
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{
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DisplayFrustum(
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AzFramework::ViewFrustumAttributesFromCameraState(m_lastCameraState.value()), debugDisplay);
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}
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}
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if (ed_visibility_debugOctree)
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{
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DisplayOctreeDebug(m_octreeDebug, debugDisplay);
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}
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}
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}
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} // namespace AzFramework
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