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o3de/Gems/Atom/Feature/Common/Code/Source/Mesh/MeshFeatureProcessor.cpp
T
Benjamin Jillich 0fa00a117c [ATOM-14477] Add clone function to model and/or model asset (#135) 
* Added clone methods for the buffer, model lod and model assets.
* Cloning works via the creators.
* Mesh handle/instance now knows about the model asset it originated from as well as the cloned model asset that we need for instancing until instancing works without the dependencies to the asset ids.
* MeshComponentRequestBus returns the original asset id and the model asset. If you need access to the clone, go by the model.
* Cloth component mesh now gettings its model asset from the model as it needs to work on the clone.
* Moved the requires cloning function from the mesh loader in the mesh feature processor to the mesh component controller.
* As we need the model asset to be loaded before we can check if it requires cloning or not, we couldn't pass in a bool from the controller but had to use a callback.
* Using asset hint instead of asset id for the model lod asset creator error.
* Storing a map of source buffer asset ids and the actual cloned buffer assets rather than just their ids.
* Using the buffer assets from the new map directly and removed the search process in the mesh loop where the asset views are created.
* Fixed the vegetation mocks.
* Using the actor's mesh asset when emitting the on model ready event for the mesh component notification bus.
* Mesh components notifications connection policy changed to adapt to cloned model asset.
* Handling empty meshes in model lod asset creator.
* Removed the requires cloning callback from the mesh feature processor and made it a parameter to the acquire mesh function
* Fixing mocks and unit tests
2021-04-23 18:33:00 +02:00

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/*
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
* its licensors.
*
* For complete copyright and license terms please see the LICENSE at the root of this
* distribution (the "License"). All use of this software is governed by the License,
* or, if provided, by the license below or the license accompanying this file. Do not
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*
*/
#include <RenderCommon.h>
#include <Atom/RHI/CpuProfiler.h>
#include <Atom/RHI.Reflect/InputStreamLayoutBuilder.h>
#include <Atom/Feature/Mesh/MeshFeatureProcessor.h>
#include <Atom/Feature/ReflectionProbe/ReflectionProbeFeatureProcessor.h>
#include <Atom/RPI.Public/Model/ModelLodUtils.h>
#include <Atom/RPI.Public/Scene.h>
#include <Atom/RPI.Public/Culling.h>
#include <Atom/Utils/StableDynamicArray.h>
#include <Atom/RPI.Reflect/Model/ModelAssetCreator.h>
#include <AtomCore/Instance/InstanceDatabase.h>
#include <AzCore/Console/IConsole.h>
#include <AzCore/Debug/EventTrace.h>
#include <AzCore/Jobs/Algorithms.h>
#include <AzCore/Jobs/JobCompletion.h>
#include <AzCore/Jobs/JobFunction.h>
#include <AzCore/Math/ShapeIntersection.h>
#include <AzCore/RTTI/TypeInfo.h>
#include <AzCore/Serialization/SerializeContext.h>
#include <AzCore/Asset/AssetCommon.h>
namespace AZ
{
namespace Render
{
void MeshFeatureProcessor::Reflect(ReflectContext* context)
{
if (auto* serializeContext = azrtti_cast<SerializeContext*>(context))
{
serializeContext
->Class<MeshFeatureProcessor, FeatureProcessor>()
->Version(0);
}
}
void MeshFeatureProcessor::Activate()
{
m_transformService = GetParentScene()->GetFeatureProcessor<TransformServiceFeatureProcessor>();
AZ_Assert(m_transformService, "MeshFeatureProcessor requires a TransformServiceFeatureProcessor on its parent scene.");
m_rayTracingFeatureProcessor = GetParentScene()->GetFeatureProcessor<RayTracingFeatureProcessor>();
m_handleGlobalShaderOptionUpdate = RPI::ShaderSystemInterface::GlobalShaderOptionUpdatedEvent::Handler
{
[this](const AZ::Name&, RPI::ShaderOptionValue) { m_forceRebuildDrawPackets = true; }
};
RPI::ShaderSystemInterface::Get()->Connect(m_handleGlobalShaderOptionUpdate);
EnableSceneNotification();
}
void MeshFeatureProcessor::Deactivate()
{
m_handleGlobalShaderOptionUpdate.Disconnect();
DisableSceneNotification();
AZ_Warning("MeshFeatureProcessor", m_meshData.size() == 0,
"Deactivaing the MeshFeatureProcessor, but there are still outstanding mesh handles.\n"
);
m_transformService = nullptr;
m_forceRebuildDrawPackets = false;
}
void MeshFeatureProcessor::Simulate(const FeatureProcessor::SimulatePacket& packet)
{
AZ_PROFILE_FUNCTION(Debug::ProfileCategory::AzRender);
AZ_ATOM_PROFILE_FUNCTION("RPI", "MeshFeatureProcessor: Simulate");
AZ_UNUSED(packet);
AZStd::concurrency_check_scope scopeCheck(m_meshDataChecker);
const auto iteratorRanges = m_meshData.GetParallelRanges();
AZ::JobCompletion jobCompletion;
for (const auto& iteratorRange : iteratorRanges)
{
const auto jobLambda = [&]() -> void
{
AZ_PROFILE_SCOPE(Debug::ProfileCategory::AzRender, "MeshFP::Simulate() Lambda");
for (auto meshDataIter = iteratorRange.first; meshDataIter != iteratorRange.second; ++meshDataIter)
{
if (!meshDataIter->m_model)
{
continue; // model not loaded yet
}
if (!meshDataIter->m_visible)
{
continue;
}
if (meshDataIter->m_objectSrgNeedsUpdate)
{
meshDataIter->UpdateObjectSrg();
}
// [GFX TODO] [ATOM-1357] Currently all of the draw packets have to be checked for material ID changes because
// material properties can impact which actual shader is used, which impacts the SRG in the draw packet.
// This is scheduled to be optimized so the work is only done on draw packets that need it instead of having
// to check every one.
meshDataIter->UpdateDrawPackets(m_forceRebuildDrawPackets);
if (meshDataIter->m_cullableNeedsRebuild)
{
meshDataIter->BuildCullable();
}
}
};
Job* executeGroupJob = aznew JobFunction<decltype(jobLambda)>(jobLambda, true, nullptr); // Auto-deletes
executeGroupJob->SetDependent(&jobCompletion);
executeGroupJob->Start();
}
jobCompletion.StartAndWaitForCompletion();
m_forceRebuildDrawPackets = false;
// CullingSystem::RegisterOrUpdateCullable() is not threadsafe, so need to do those updates in a single thread
for (MeshDataInstance& meshDataInstance : m_meshData)
{
if (meshDataInstance.m_model && meshDataInstance.m_cullBoundsNeedsUpdate)
{
meshDataInstance.UpdateCullBounds(m_transformService);
}
}
}
void MeshFeatureProcessor::OnBeginPrepareRender()
{
m_meshDataChecker.soft_lock();
}
void MeshFeatureProcessor::OnEndPrepareRender()
{
m_meshDataChecker.soft_unlock();
}
MeshFeatureProcessor::MeshHandle MeshFeatureProcessor::AcquireMesh(
const Data::Asset<RPI::ModelAsset>& modelAsset,
const MaterialAssignmentMap& materials,
bool skinnedMeshWithMotion,
bool rayTracingEnabled,
RequiresCloneCallback requiresCloneCallback)
{
AZ_PROFILE_FUNCTION(Debug::ProfileCategory::AzRender);
// don't need to check the concurrency during emplace() because the StableDynamicArray won't move the other elements during insertion
MeshHandle meshDataHandle = m_meshData.emplace();
// Mark skinned meshes to enable special processes to generate motion vector
meshDataHandle->m_skinnedMeshWithMotion = skinnedMeshWithMotion;
// set ray tracing flag, but always disable on skinned meshes
// [GFX TODO][ATOM-13067] Enable raytracing on skinned meshes
meshDataHandle->m_rayTracingEnabled = rayTracingEnabled && (skinnedMeshWithMotion == false);
meshDataHandle->m_scene = GetParentScene();
meshDataHandle->m_materialAssignments = materials;
meshDataHandle->m_objectId = m_transformService->ReserveObjectId();
meshDataHandle->m_originalModelAsset = modelAsset;
meshDataHandle->m_requiresCloningCallback = requiresCloneCallback;
meshDataHandle->m_meshLoader = AZStd::make_unique<MeshDataInstance::MeshLoader>(modelAsset, &*meshDataHandle);
return meshDataHandle;
}
MeshFeatureProcessor::MeshHandle MeshFeatureProcessor::AcquireMesh(
const Data::Asset<RPI::ModelAsset>& modelAsset,
const Data::Instance<RPI::Material>& material,
bool skinnedMeshWithMotion,
bool rayTracingEnabled,
RequiresCloneCallback requiresCloneCallback)
{
Render::MaterialAssignmentMap materials;
Render::MaterialAssignment& defaultMaterial = materials[AZ::Render::DefaultMaterialAssignmentId];
defaultMaterial.m_materialInstance = material;
return AcquireMesh(modelAsset, materials, skinnedMeshWithMotion, rayTracingEnabled, requiresCloneCallback);
}
bool MeshFeatureProcessor::ReleaseMesh(MeshHandle& meshHandle)
{
if (meshHandle.IsValid())
{
meshHandle->DeInit();
m_transformService->ReleaseObjectId(meshHandle->m_objectId);
AZStd::concurrency_check_scope scopeCheck(m_meshDataChecker);
m_meshData.erase(meshHandle);
return true;
}
return false;
}
MeshFeatureProcessor::MeshHandle MeshFeatureProcessor::CloneMesh(const MeshHandle& meshHandle)
{
if (meshHandle.IsValid())
{
MeshHandle clone = AcquireMesh(meshHandle->m_originalModelAsset, meshHandle->m_materialAssignments);
return clone;
}
return MeshFeatureProcessor::MeshHandle();
}
Data::Instance<RPI::Model> MeshFeatureProcessor::GetModel(const MeshHandle& meshHandle) const
{
return meshHandle.IsValid() ? meshHandle->m_model : nullptr;
}
Data::Asset<RPI::ModelAsset> MeshFeatureProcessor::GetModelAsset(const MeshHandle& meshHandle) const
{
if (meshHandle.IsValid())
{
return meshHandle->m_originalModelAsset;
}
return {};
}
void MeshFeatureProcessor::SetMaterialAssignmentMap(const MeshHandle& meshHandle, const Data::Instance<RPI::Material>& material)
{
Render::MaterialAssignmentMap materials;
Render::MaterialAssignment& defaultMaterial = materials[AZ::Render::DefaultMaterialAssignmentId];
defaultMaterial.m_materialInstance = material;
return SetMaterialAssignmentMap(meshHandle, materials);
}
void MeshFeatureProcessor::SetMaterialAssignmentMap(const MeshHandle& meshHandle, const MaterialAssignmentMap& materials)
{
if (meshHandle.IsValid())
{
if (meshHandle->m_model)
{
Data::Instance<RPI::Model> model = meshHandle->m_model;
meshHandle->DeInit();
meshHandle->m_materialAssignments = materials;
meshHandle->Init(model);
}
else
{
meshHandle->m_materialAssignments = materials;
}
meshHandle->m_objectSrgNeedsUpdate = true;
}
}
const MaterialAssignmentMap& MeshFeatureProcessor::GetMaterialAssignmentMap(const MeshHandle& meshHandle) const
{
return meshHandle.IsValid() ? meshHandle->m_materialAssignments : DefaultMaterialAssignmentMap;
}
void MeshFeatureProcessor::ConnectModelChangeEventHandler(const MeshHandle& meshHandle, ModelChangedEvent::Handler& handler)
{
if (meshHandle.IsValid())
{
handler.Connect(meshHandle->m_meshLoader->GetModelChangedEvent());
}
}
void MeshFeatureProcessor::SetTransform(const MeshHandle& meshHandle, const AZ::Transform& transform, const AZ::Vector3& nonUniformScale)
{
if (meshHandle.IsValid())
{
MeshDataInstance& meshData = *meshHandle;
meshData.m_cullBoundsNeedsUpdate = true;
meshData.m_objectSrgNeedsUpdate = true;
m_transformService->SetTransformForId(meshHandle->m_objectId, transform, nonUniformScale);
// ray tracing data needs to be updated with the new transform
if (m_rayTracingFeatureProcessor)
{
m_rayTracingFeatureProcessor->SetMeshTransform(meshHandle->m_objectId, transform, nonUniformScale);
}
}
}
Transform MeshFeatureProcessor::GetTransform(const MeshHandle& meshHandle)
{
if (meshHandle.IsValid())
{
return m_transformService->GetTransformForId(meshHandle->m_objectId);
}
else
{
AZ_Assert(false, "Invalid mesh handle");
return Transform::CreateIdentity();
}
}
Vector3 MeshFeatureProcessor::GetNonUniformScale(const MeshHandle& meshHandle)
{
if (meshHandle.IsValid())
{
return m_transformService->GetNonUniformScaleForId(meshHandle->m_objectId);
}
else
{
AZ_Assert(false, "Invalid mesh handle");
return Vector3::CreateOne();
}
}
void MeshFeatureProcessor::SetSortKey(const MeshHandle& meshHandle, RHI::DrawItemSortKey sortKey)
{
if (meshHandle.IsValid())
{
meshHandle->SetSortKey(sortKey);
}
}
RHI::DrawItemSortKey MeshFeatureProcessor::GetSortKey(const MeshHandle& meshHandle)
{
if (meshHandle.IsValid())
{
return meshHandle->GetSortKey();
}
else
{
AZ_Assert(false, "Invalid mesh handle");
return 0;
}
}
void MeshFeatureProcessor::SetLodOverride(const MeshHandle& meshHandle, RPI::Cullable::LodOverride lodOverride)
{
if (meshHandle.IsValid())
{
meshHandle->SetLodOverride(lodOverride);
}
}
RPI::Cullable::LodOverride MeshFeatureProcessor::GetLodOverride(const MeshHandle& meshHandle)
{
if (meshHandle.IsValid())
{
return meshHandle->GetLodOverride();
}
else
{
AZ_Assert(false, "Invalid mesh handle");
return 0;
}
}
void MeshFeatureProcessor::SetExcludeFromReflectionCubeMaps(const MeshHandle& meshHandle, bool excludeFromReflectionCubeMaps)
{
if (meshHandle.IsValid())
{
meshHandle->m_excludeFromReflectionCubeMaps = excludeFromReflectionCubeMaps;
}
}
void MeshFeatureProcessor::SetRayTracingEnabled(const MeshHandle& meshHandle, bool rayTracingEnabled)
{
if (meshHandle.IsValid())
{
// update the ray tracing data based on the current state and the new state
if (rayTracingEnabled && !meshHandle->m_rayTracingEnabled)
{
// add to ray tracing
meshHandle->SetRayTracingData();
}
else if (!rayTracingEnabled && meshHandle->m_rayTracingEnabled)
{
// remove from ray tracing
if (m_rayTracingFeatureProcessor)
{
m_rayTracingFeatureProcessor->RemoveMesh(meshHandle->m_objectId);
}
}
// set new state
meshHandle->m_rayTracingEnabled = rayTracingEnabled;
}
}
void MeshFeatureProcessor::SetVisible(const MeshHandle& meshHandle, bool visible)
{
if (meshHandle.IsValid())
{
meshHandle->m_visible = visible;
}
}
void MeshFeatureProcessor::SetUseForwardPassIblSpecular(const MeshHandle& meshHandle, bool useForwardPassIblSpecular)
{
if (meshHandle.IsValid())
{
meshHandle->m_useForwardPassIblSpecular = useForwardPassIblSpecular;
meshHandle->m_objectSrgNeedsUpdate = true;
if (meshHandle->m_model)
{
const size_t modelLodCount = meshHandle->m_model->GetLodCount();
for (size_t modelLodIndex = 0; modelLodIndex < modelLodCount; ++modelLodIndex)
{
meshHandle->BuildDrawPacketList(modelLodIndex);
}
}
}
}
void MeshFeatureProcessor::ForceRebuildDrawPackets([[maybe_unused]] const AZ::ConsoleCommandContainer& arguments)
{
m_forceRebuildDrawPackets = true;
}
void MeshFeatureProcessor::OnRenderPipelineAdded(RPI::RenderPipelinePtr pipeline)
{
m_forceRebuildDrawPackets = true;;
}
void MeshFeatureProcessor::OnRenderPipelineRemoved([[maybe_unused]] RPI::RenderPipeline* pipeline)
{
m_forceRebuildDrawPackets = true;
}
void MeshFeatureProcessor::UpdateMeshReflectionProbes()
{
// we need to rebuild the Srg for any meshes that are using the forward pass IBL specular option
for (auto& meshInstance : m_meshData)
{
if (meshInstance.m_useForwardPassIblSpecular)
{
meshInstance.m_objectSrgNeedsUpdate = true;
}
}
}
// MeshDataInstance::MeshLoader...
MeshDataInstance::MeshLoader::MeshLoader(const Data::Asset<RPI::ModelAsset>& modelAsset, MeshDataInstance* parent)
: m_modelAsset(modelAsset)
, m_parent(parent)
{
AZ_PROFILE_FUNCTION(Debug::ProfileCategory::AzRender);
if (!m_modelAsset.GetId().IsValid())
{
AZ_Error("MeshDataInstance::MeshLoader", false, "Invalid model asset Id.");
return;
}
// Check if the model is in the instance database and skip the loading process in this case.
// The model asset id is used as instance id to indicate that it is a static and shared.
Data::Instance<RPI::Model> model = Data::InstanceDatabase<RPI::Model>::Instance().Find(Data::InstanceId::CreateFromAssetId(m_modelAsset.GetId()));
if (model)
{
// In case the mesh asset requires instancing (e.g. when containing a cloth buffer), the model will always be cloned and there will not be a
// model instance with the asset id as instance id as searched above.
m_parent->Init(model);
m_modelChangedEvent.Signal(AZStd::move(model));
return;
}
m_modelAsset.QueueLoad();
Data::AssetBus::Handler::BusConnect(modelAsset.GetId());
}
MeshDataInstance::MeshLoader::~MeshLoader()
{
Data::AssetBus::Handler::BusDisconnect();
}
MeshFeatureProcessorInterface::ModelChangedEvent& MeshDataInstance::MeshLoader::GetModelChangedEvent()
{
return m_modelChangedEvent;
}
//! AssetBus::Handler overrides...
void MeshDataInstance::MeshLoader::OnAssetReady(Data::Asset<Data::AssetData> asset)
{
AZ_PROFILE_FUNCTION(Debug::ProfileCategory::AzRender);
Data::Asset<RPI::ModelAsset> modelAsset = asset;
// Assign the fully loaded asset back to the mesh handle to not only hold asset id, but the actual data as well.
m_parent->m_originalModelAsset = asset;
Data::Instance<RPI::Model> model;
// Check if a requires cloning callback got set and if so check if cloning the model asset is requested.
if (m_parent->m_requiresCloningCallback &&
m_parent->m_requiresCloningCallback(modelAsset))
{
// Clone the model asset to force create another model instance.
AZ::Data::AssetId newId(AZ::Uuid::CreateRandom(), /*subId=*/0);
Data::Asset<RPI::ModelAsset> clonedAsset;
if (AZ::RPI::ModelAssetCreator::Clone(modelAsset, clonedAsset, newId))
{
model = RPI::Model::FindOrCreate(clonedAsset);
}
else
{
AZ_Error("MeshDataInstance", false, "Cannot clone model for '%s'. Cloth simulation results won't be individual per entity.", modelAsset->GetName().GetCStr());
model = RPI::Model::FindOrCreate(modelAsset);
}
}
else
{
// Static mesh, no cloth buffer present.
model = RPI::Model::FindOrCreate(modelAsset);
}
if (model)
{
m_parent->Init(model);
m_modelChangedEvent.Signal(AZStd::move(model));
}
else
{
AZ_Error("MeshDataInstance::OnAssetReady", false, "Failed to create model instance for '%s'", asset.GetHint().c_str());
}
}
void MeshDataInstance::MeshLoader::OnAssetError(Data::Asset<Data::AssetData> asset)
{
// Note: m_modelAsset and asset represents same asset, but only m_modelAsset contains the file path in its hint from serialization
AZ_Error("MeshDataInstance::MeshLoader", false, "Failed to load asset %s.", m_modelAsset.GetHint().c_str());
}
// MeshDataInstance...
void MeshDataInstance::DeInit()
{
m_scene->GetCullingScene()->UnregisterCullable(m_cullable);
// remove from ray tracing
RayTracingFeatureProcessor* rayTracingFeatureProcessor = m_scene->GetFeatureProcessor<RayTracingFeatureProcessor>();
if (rayTracingFeatureProcessor)
{
rayTracingFeatureProcessor->RemoveMesh(m_objectId);
}
m_meshLoader.reset();
m_drawPacketListsByLod.clear();
m_materialAssignments.clear();
m_shaderResourceGroup = {};
m_model = {};
}
void MeshDataInstance::Init(Data::Instance<RPI::Model> model)
{
AZ_PROFILE_FUNCTION(Debug::ProfileCategory::AzRender);
auto modelAsset = model->GetModelAsset();
for (const auto& modelLodAsset : modelAsset->GetLodAssets())
{
for (const auto& mesh : modelLodAsset->GetMeshes())
{
if (mesh.GetMaterialAsset().GetStatus() != Data::AssetData::AssetStatus::Ready)
{
}
}
}
m_model = model;
const size_t modelLodCount = m_model->GetLodCount();
m_drawPacketListsByLod.resize(modelLodCount);
for (size_t modelLodIndex = 0; modelLodIndex < modelLodCount; ++modelLodIndex)
{
BuildDrawPacketList(modelLodIndex);
}
if (m_shaderResourceGroup)
{
// Set object Id once since it never changes
RHI::ShaderInputNameIndex objectIdIndex = "m_objectId";
m_shaderResourceGroup->SetConstant(objectIdIndex, m_objectId.GetIndex());
objectIdIndex.AssertValid();
}
if (m_rayTracingEnabled)
{
SetRayTracingData();
}
m_cullableNeedsRebuild = true;
m_cullBoundsNeedsUpdate = true;
m_objectSrgNeedsUpdate = true;
}
void MeshDataInstance::BuildDrawPacketList(size_t modelLodIndex)
{
AZ_PROFILE_FUNCTION(Debug::ProfileCategory::AzRender);
RPI::ModelLod& modelLod = *m_model->GetLods()[modelLodIndex];
const size_t meshCount = modelLod.GetMeshes().size();
MeshDataInstance::DrawPacketList& drawPacketListOut = m_drawPacketListsByLod[modelLodIndex];
drawPacketListOut.clear();
drawPacketListOut.reserve(meshCount);
m_hasForwardPassIblSpecularMaterial = false;
for (size_t meshIndex = 0; meshIndex < meshCount; ++meshIndex)
{
Data::Instance<RPI::Material> material = modelLod.GetMeshes()[meshIndex].m_material;
// Determine if there is a material override specified for this sub mesh
const MaterialAssignmentId materialAssignmentId(modelLodIndex, material ? material->GetAssetId() : AZ::Data::AssetId());
const MaterialAssignment& materialAssignment = GetMaterialAssignmentFromMapWithFallback(m_materialAssignments, materialAssignmentId);
if (materialAssignment.m_materialInstance.get())
{
material = materialAssignment.m_materialInstance;
}
if (!material)
{
AZ_Warning("MeshFeatureProcessor", false, "No material provided for mesh. Skipping.");
continue;
}
auto& objectSrgAsset = material->GetAsset()->GetObjectSrgAsset();
if (!objectSrgAsset)
{
AZ_Warning("MeshFeatureProcessor", false, "No per-object ShaderResourceGroup found.");
continue;
}
if (m_shaderResourceGroup && m_shaderResourceGroup->GetAsset() != objectSrgAsset)
{
AZ_Warning("MeshFeatureProcessor", false, "All materials on a model must use the same per-object ShaderResourceGroup. Skipping.");
continue;
}
// The first time we find the per-surface SRG asset we create an instance and store it
// in shaderResourceGroupInOut. All of the Model's draw packets will use this same instance.
if (!m_shaderResourceGroup)
{
m_shaderResourceGroup = RPI::ShaderResourceGroup::Create(objectSrgAsset);
if (!m_shaderResourceGroup)
{
AZ_Warning("MeshFeatureProcessor", false, "Failed to create a new shader resource group, skipping.");
continue;
}
}
SelectMotionVectorShader(material);
// setup the mesh draw packet
RPI::MeshDrawPacket drawPacket(modelLod, meshIndex, material, m_shaderResourceGroup, materialAssignment.m_matModUvOverrides);
// set the shader option to select forward pass IBL specular if necessary
if (!drawPacket.SetShaderOption(AZ::Name("o_meshUseForwardPassIBLSpecular"), AZ::RPI::ShaderOptionValue{ m_useForwardPassIblSpecular }))
{
AZ_Warning("MeshDrawPacket", false, "Failed to set o_meshUseForwardPassIBLSpecular on mesh draw packet");
}
bool materialRequiresForwardPassIblSpecular = MaterialRequiresForwardPassIblSpecular(material);
// track whether any materials in this mesh require ForwardPassIblSpecular, we need this information when the ObjectSrg is updated
m_hasForwardPassIblSpecularMaterial |= materialRequiresForwardPassIblSpecular;
// stencil bits
uint8_t stencilRef = m_useForwardPassIblSpecular || materialRequiresForwardPassIblSpecular ? Render::StencilRefs::None : Render::StencilRefs::UseIBLSpecularPass;
stencilRef |= Render::StencilRefs::UseDiffuseGIPass;
drawPacket.SetStencilRef(stencilRef);
drawPacket.SetSortKey(m_sortKey);
drawPacket.Update(*m_scene, false);
drawPacketListOut.emplace_back(AZStd::move(drawPacket));
}
}
void MeshDataInstance::SetRayTracingData()
{
RayTracingFeatureProcessor* rayTracingFeatureProcessor = m_scene->GetFeatureProcessor<RayTracingFeatureProcessor>();
if (rayTracingFeatureProcessor == nullptr)
{
return;
}
const AZStd::array_view<Data::Instance<RPI::ModelLod>>& modelLods = m_model->GetLods();
if (modelLods.empty())
{
return;
}
// use the lowest LOD for raytracing
uint32_t rayTracingLod = aznumeric_cast<uint32_t>(modelLods.size() - 1);
const Data::Instance<RPI::ModelLod>& modelLod = modelLods[rayTracingLod];
// setup a stream layout and shader input contract for the position and normal streams
static const char* PositionSemantic = "POSITION";
static const char* NormalSemantic = "NORMAL";
static const RHI::Format StreamFormat = RHI::Format::R32G32B32_FLOAT;
RHI::InputStreamLayoutBuilder layoutBuilder;
layoutBuilder.AddBuffer()->Channel(PositionSemantic, StreamFormat);
layoutBuilder.AddBuffer()->Channel(NormalSemantic, StreamFormat);
RHI::InputStreamLayout inputStreamLayout = layoutBuilder.End();
RPI::ShaderInputContract::StreamChannelInfo positionStreamChannelInfo;
positionStreamChannelInfo.m_semantic = RHI::ShaderSemantic(AZ::Name(PositionSemantic));
positionStreamChannelInfo.m_componentCount = RHI::GetFormatComponentCount(StreamFormat);
RPI::ShaderInputContract::StreamChannelInfo normalStreamChannelInfo;
normalStreamChannelInfo.m_semantic = RHI::ShaderSemantic(AZ::Name(NormalSemantic));
normalStreamChannelInfo.m_componentCount = RHI::GetFormatComponentCount(StreamFormat);
RPI::ShaderInputContract shaderInputContract;
shaderInputContract.m_streamChannels.emplace_back(positionStreamChannelInfo);
shaderInputContract.m_streamChannels.emplace_back(normalStreamChannelInfo);
// setup the raytracing data for each sub-mesh
const size_t meshCount = modelLod->GetMeshes().size();
RayTracingFeatureProcessor::SubMeshVector subMeshes;
for (uint32_t meshIndex = 0; meshIndex < meshCount; ++meshIndex)
{
const RPI::ModelLod::Mesh& mesh = modelLod->GetMeshes()[meshIndex];
// retrieve vertex/index buffers
RPI::ModelLod::StreamBufferViewList streamBufferViews;
[[maybe_unused]] bool result = modelLod->GetStreamsForMesh(inputStreamLayout, streamBufferViews, shaderInputContract, meshIndex);
AZ_Assert(result, "Failed to retrieve mesh stream buffer views");
// note that the element count is the size of the entire buffer, even though this mesh may only
// occupy a portion of the vertex buffer. This is necessary since we are accessing it using
// a ByteAddressBuffer in the raytracing shaders and passing the byte offset to the shader in a constant buffer.
uint32_t vertexBufferByteCount = const_cast<RHI::Buffer*>(streamBufferViews[0].GetBuffer())->GetDescriptor().m_byteCount;
RHI::BufferViewDescriptor vertexBufferDescriptor = RHI::BufferViewDescriptor::CreateRaw(0, vertexBufferByteCount);
const RHI::IndexBufferView& indexBufferView = mesh.m_indexBufferView;
uint32_t indexElementSize = indexBufferView.GetIndexFormat() == RHI::IndexFormat::Uint16 ? 2 : 4;
uint32_t indexElementCount = (uint32_t)indexBufferView.GetBuffer()->GetDescriptor().m_byteCount / indexElementSize;
RHI::BufferViewDescriptor indexBufferDescriptor;
indexBufferDescriptor.m_elementOffset = 0;
indexBufferDescriptor.m_elementCount = indexElementCount;
indexBufferDescriptor.m_elementSize = indexElementSize;
indexBufferDescriptor.m_elementFormat = indexBufferView.GetIndexFormat() == RHI::IndexFormat::Uint16 ? RHI::Format::R16_UINT : RHI::Format::R32_UINT;
// retrieve the material
Data::Instance<RPI::Material> material = mesh.m_material;
const MaterialAssignmentId materialAssignmentId(rayTracingLod, material ? material->GetAssetId() : AZ::Data::AssetId());
const MaterialAssignment& materialAssignment = GetMaterialAssignmentFromMapWithFallback(m_materialAssignments, materialAssignmentId);
if (materialAssignment.m_materialInstance.get())
{
material = materialAssignment.m_materialInstance;
}
AZ::Color irradianceColor(1.0f, 1.0f, 1.0f, 1.0f);
if (material)
{
RPI::MaterialPropertyIndex propertyIndex = material->FindPropertyIndex(AZ::Name("irradiance.color"));
if (propertyIndex.IsValid())
{
irradianceColor = material->GetPropertyValue<AZ::Color>(propertyIndex);
}
propertyIndex = material->FindPropertyIndex(AZ::Name("irradiance.factor"));
if (propertyIndex.IsValid())
{
irradianceColor *= material->GetPropertyValue<float>(propertyIndex);
}
}
RayTracingFeatureProcessor::SubMesh subMesh;
subMesh.m_vertexFormat = StreamFormat;
subMesh.m_positionVertexBufferView = streamBufferViews[0];
subMesh.m_positionShaderBufferView = const_cast<RHI::Buffer*>(streamBufferViews[0].GetBuffer())->GetBufferView(vertexBufferDescriptor);
subMesh.m_normalVertexBufferView = streamBufferViews[1];
subMesh.m_normalShaderBufferView = const_cast<RHI::Buffer*>(streamBufferViews[1].GetBuffer())->GetBufferView(vertexBufferDescriptor);
subMesh.m_indexBufferView = mesh.m_indexBufferView;
subMesh.m_indexShaderBufferView = const_cast<RHI::Buffer*>(mesh.m_indexBufferView.GetBuffer())->GetBufferView(indexBufferDescriptor);
subMesh.m_irradianceColor = irradianceColor;
subMeshes.push_back(subMesh);
}
rayTracingFeatureProcessor->SetMesh(m_objectId, subMeshes);
}
void MeshDataInstance::SetSortKey(RHI::DrawItemSortKey sortKey)
{
m_sortKey = sortKey;
for (auto& drawPacketList : m_drawPacketListsByLod)
{
for (auto& drawPacket : drawPacketList)
{
drawPacket.SetSortKey(sortKey);
}
}
}
RHI::DrawItemSortKey MeshDataInstance::GetSortKey()
{
return m_sortKey;
}
void MeshDataInstance::SetLodOverride(RPI::Cullable::LodOverride lodOverride)
{
m_cullable.m_lodData.m_lodOverride = lodOverride;
}
RPI::Cullable::LodOverride MeshDataInstance::GetLodOverride()
{
return m_cullable.m_lodData.m_lodOverride;
}
void MeshDataInstance::UpdateDrawPackets(bool forceUpdate /*= false*/)
{
AZ_PROFILE_FUNCTION(Debug::ProfileCategory::AzRender);
for (auto& drawPacketList : m_drawPacketListsByLod)
{
for (auto& drawPacket : drawPacketList)
{
if (drawPacket.Update(*m_scene, forceUpdate))
{
m_cullableNeedsRebuild = true;
}
}
}
}
void MeshDataInstance::BuildCullable()
{
AZ_PROFILE_FUNCTION(Debug::ProfileCategory::AzRender);
AZ_Assert(m_cullableNeedsRebuild, "This function only needs to be called if the cullable to be rebuilt");
AZ_Assert(m_model, "The model has not finished loading yet");
RPI::Cullable::CullData& cullData = m_cullable.m_cullData;
RPI::Cullable::LodData& lodData = m_cullable.m_lodData;
const Aabb& localAabb = m_model->GetAabb();
lodData.m_lodSelectionRadius = 0.5f*localAabb.GetExtents().GetMaxElement();
const size_t modelLodCount = m_model->GetLodCount();
const auto& lodAssets = m_model->GetModelAsset()->GetLodAssets();
AZ_Assert(lodAssets.size() == modelLodCount, "Number of asset lods must match number of model lods");
lodData.m_lods.resize(modelLodCount);
cullData.m_drawListMask.reset();
const size_t lodCount = lodAssets.size();
for (size_t lodIndex = 0; lodIndex < lodCount; ++lodIndex)
{
//initialize the lod
RPI::Cullable::LodData::Lod& lod = lodData.m_lods[lodIndex];
//[GFX TODO][ATOM-5562] - Level of detail: override lod distances and add global lod multiplier(s)
static const float MinimumScreenCoverage = 1.0f/1080.0f; //mesh should cover at least a screen pixel at 1080p to be drawn
static const float ReductionFactor = 0.5f;
if (lodIndex == 0)
{
//first lod
lod.m_screenCoverageMax = 1.0f;
}
else
{
//every other lod: use the previous lod's min
lod.m_screenCoverageMax = AZStd::GetMax(lodData.m_lods[lodIndex-1].m_screenCoverageMin, MinimumScreenCoverage);
}
if (lodIndex < lodAssets.size() - 1)
{
//first and middle lods: compute a stepdown value for the min
lod.m_screenCoverageMin = AZStd::GetMax(ReductionFactor * lod.m_screenCoverageMax, MinimumScreenCoverage);
}
else
{
//last lod: use MinimumScreenCoverage for the min
lod.m_screenCoverageMin = MinimumScreenCoverage;
}
lod.m_drawPackets.clear();
for (const RPI::MeshDrawPacket& meshDrawPacket : m_drawPacketListsByLod[lodIndex])
{
const RHI::DrawPacket* rhiDrawPacket = meshDrawPacket.GetRHIDrawPacket();
if (rhiDrawPacket)
{
//OR-together all the drawListMasks (so we know which views to cull against)
cullData.m_drawListMask |= rhiDrawPacket->GetDrawListMask();
lod.m_drawPackets.push_back(rhiDrawPacket);
}
}
}
cullData.m_hideFlags = RPI::View::UsageNone;
if (m_excludeFromReflectionCubeMaps)
{
cullData.m_hideFlags |= RPI::View::UsageReflectiveCubeMap;
}
cullData.m_scene = m_scene; //[GFX_TODO][ATOM-13796] once the IVisibilitySystem supports multiple octree scenes, remove this
#ifdef AZ_CULL_DEBUG_ENABLED
m_cullable.SetDebugName(AZ::Name(AZStd::string::format("%s - objectId: %u", m_model->GetModelAsset()->GetName().GetCStr(), m_objectId.GetIndex())));
#endif
m_cullableNeedsRebuild = false;
m_cullBoundsNeedsUpdate = true;
}
void MeshDataInstance::UpdateCullBounds(const TransformServiceFeatureProcessor* transformService)
{
AZ_PROFILE_FUNCTION(Debug::ProfileCategory::AzRender);
AZ_Assert(m_cullBoundsNeedsUpdate, "This function only needs to be called if the culling bounds need to be rebuilt");
AZ_Assert(m_model, "The model has not finished loading yet");
Transform localToWorld = transformService->GetTransformForId(m_objectId);
Vector3 nonUniformScale = transformService->GetNonUniformScaleForId(m_objectId);
Vector3 center;
float radius;
Aabb localAabb = m_model->GetAabb();
localAabb.MultiplyByScale(nonUniformScale);
localAabb.GetTransformedAabb(localToWorld).GetAsSphere(center, radius);
m_cullable.m_cullData.m_boundingSphere = Sphere(center, radius);
m_cullable.m_cullData.m_boundingObb = localAabb.GetTransformedObb(localToWorld);
m_cullable.m_cullData.m_visibilityEntry.m_boundingVolume = localAabb.GetTransformedAabb(localToWorld);
m_cullable.m_cullData.m_visibilityEntry.m_userData = &m_cullable;
m_cullable.m_cullData.m_visibilityEntry.m_typeFlags = AzFramework::VisibilityEntry::TYPE_RPI_Cullable;
m_scene->GetCullingScene()->RegisterOrUpdateCullable(m_cullable);
m_cullBoundsNeedsUpdate = false;
}
void MeshDataInstance::SelectMotionVectorShader(Data::Instance<RPI::Material> material)
{
// Two motion vector shaders are defined in the material for static mesh (only animated by transform matrix)
// and skinned mesh (per vertex animation) respectively, it's because they have different input signatures
// (skinned mesh needs two streaming channels while static mesh only needs one) that cannot be addressed by shader option
// itself. Therefore this function is used to pick one to use and disable the other one depending on the type of the mesh
// so it won't cause errors due to missing input streaming channel.
//[GFX TODO][ATOM-4726] Replace this with a "isSkinnedMesh" external material property and a functor that enables/disables the appropriate shader
for (auto& shaderItem : material->GetShaderCollection())
{
if (shaderItem.GetShaderAsset()->GetName() == Name{ "StaticMeshMotionVector" } && m_skinnedMeshWithMotion)
{
shaderItem.SetEnabled(false);
}
if (shaderItem.GetShaderAsset()->GetName() == Name{ "SkinnedMeshMotionVector" } && (!m_skinnedMeshWithMotion))
{
shaderItem.SetEnabled(false);
}
}
}
void MeshDataInstance::UpdateObjectSrg()
{
if (!m_shaderResourceGroup)
{
return;
}
ReflectionProbeFeatureProcessor* reflectionProbeFeatureProcessor = m_scene->GetFeatureProcessor<ReflectionProbeFeatureProcessor>();
if (reflectionProbeFeatureProcessor && (m_useForwardPassIblSpecular || m_hasForwardPassIblSpecularMaterial))
{
// retrieve probe constant indices
AZ::RHI::ShaderInputConstantIndex posConstantIndex = m_shaderResourceGroup->FindShaderInputConstantIndex(Name("m_reflectionProbeData.m_aabbPos"));
AZ_Error("MeshDataInstance", posConstantIndex.IsValid(), "Failed to find ReflectionProbe constant index");
AZ::RHI::ShaderInputConstantIndex outerAabbMinConstantIndex = m_shaderResourceGroup->FindShaderInputConstantIndex(Name("m_reflectionProbeData.m_outerAabbMin"));
AZ_Error("MeshDataInstance", outerAabbMinConstantIndex.IsValid(), "Failed to find ReflectionProbe constant index");
AZ::RHI::ShaderInputConstantIndex outerAabbMaxConstantIndex = m_shaderResourceGroup->FindShaderInputConstantIndex(Name("m_reflectionProbeData.m_outerAabbMax"));
AZ_Error("MeshDataInstance", outerAabbMaxConstantIndex.IsValid(), "Failed to find ReflectionProbe constant index");
AZ::RHI::ShaderInputConstantIndex innerAabbMinConstantIndex = m_shaderResourceGroup->FindShaderInputConstantIndex(Name("m_reflectionProbeData.m_innerAabbMin"));
AZ_Error("MeshDataInstance", innerAabbMinConstantIndex.IsValid(), "Failed to find ReflectionProbe constant index");
AZ::RHI::ShaderInputConstantIndex innerAabbMaxConstantIndex = m_shaderResourceGroup->FindShaderInputConstantIndex(Name("m_reflectionProbeData.m_innerAabbMax"));
AZ_Error("MeshDataInstance", innerAabbMaxConstantIndex.IsValid(), "Failed to find ReflectionProbe constant index");
AZ::RHI::ShaderInputConstantIndex useReflectionProbeConstantIndex = m_shaderResourceGroup->FindShaderInputConstantIndex(Name("m_reflectionProbeData.m_useReflectionProbe"));
AZ_Error("MeshDataInstance", useReflectionProbeConstantIndex.IsValid(), "Failed to find ReflectionProbe constant index");
AZ::RHI::ShaderInputConstantIndex useParallaxCorrectionConstantIndex = m_shaderResourceGroup->FindShaderInputConstantIndex(Name("m_reflectionProbeData.m_useParallaxCorrection"));
AZ_Error("MeshDataInstance", useParallaxCorrectionConstantIndex.IsValid(), "Failed to find ReflectionProbe constant index");
// retrieve probe cubemap index
Name reflectionCubeMapImageName = Name("m_reflectionProbeCubeMap");
RHI::ShaderInputImageIndex reflectionCubeMapImageIndex = m_shaderResourceGroup->FindShaderInputImageIndex(reflectionCubeMapImageName);
AZ_Error("MeshDataInstance", reflectionCubeMapImageIndex.IsValid(), "Failed to find shader image index [%s]", reflectionCubeMapImageName.GetCStr());
// retrieve the list of probes that contain the centerpoint of the mesh
TransformServiceFeatureProcessor* transformServiceFeatureProcessor = m_scene->GetFeatureProcessor<TransformServiceFeatureProcessor>();
Transform transform = transformServiceFeatureProcessor->GetTransformForId(m_objectId);
ReflectionProbeFeatureProcessor::ReflectionProbeVector reflectionProbes;
reflectionProbeFeatureProcessor->FindReflectionProbes(transform.GetTranslation(), reflectionProbes);
if (!reflectionProbes.empty() && reflectionProbes[0])
{
m_shaderResourceGroup->SetConstant(posConstantIndex, reflectionProbes[0]->GetPosition());
m_shaderResourceGroup->SetConstant(outerAabbMinConstantIndex, reflectionProbes[0]->GetOuterAabbWs().GetMin());
m_shaderResourceGroup->SetConstant(outerAabbMaxConstantIndex, reflectionProbes[0]->GetOuterAabbWs().GetMax());
m_shaderResourceGroup->SetConstant(innerAabbMinConstantIndex, reflectionProbes[0]->GetInnerAabbWs().GetMin());
m_shaderResourceGroup->SetConstant(innerAabbMaxConstantIndex, reflectionProbes[0]->GetInnerAabbWs().GetMax());
m_shaderResourceGroup->SetConstant(useReflectionProbeConstantIndex, true);
m_shaderResourceGroup->SetConstant(useParallaxCorrectionConstantIndex, reflectionProbes[0]->GetUseParallaxCorrection());
m_shaderResourceGroup->SetImage(reflectionCubeMapImageIndex, reflectionProbes[0]->GetCubeMapImage());
}
else
{
m_shaderResourceGroup->SetConstant(useReflectionProbeConstantIndex, false);
}
}
m_shaderResourceGroup->Compile();
m_objectSrgNeedsUpdate = false;
}
bool MeshDataInstance::MaterialRequiresForwardPassIblSpecular(Data::Instance<RPI::Material> material) const
{
// look for a shader that has the o_materialUseForwardPassIBLSpecular option set
// Note: this should be changed to have the material automatically set the forwardPassIBLSpecular
// property and look for that instead of the shader option.
// [GFX TODO][ATOM-5040] Address Property Metadata Feedback Loop
for (auto& shaderItem : material->GetShaderCollection())
{
if (shaderItem.IsEnabled())
{
RPI::ShaderOptionIndex index = shaderItem.GetShaderOptionGroup().GetShaderOptionLayout()->FindShaderOptionIndex(Name{ "o_materialUseForwardPassIBLSpecular" });
if (index.IsValid())
{
RPI::ShaderOptionValue value = shaderItem.GetShaderOptionGroup().GetValue(Name{ "o_materialUseForwardPassIBLSpecular" });
if (value.GetIndex() == 1)
{
return true;
}
}
}
}
return false;
}
} // namespace Render
} // namespace AZ
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