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119 lines
5.1 KiB
C++
119 lines
5.1 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#include <AzCore/Serialization/SerializeContext.h>
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#include <AzCore/std/smart_ptr/make_shared.h>
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#include <AzToolsFramework/Debug/TraceContext.h>
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#include <SceneAPI/FbxSceneBuilder/Importers/AssImpBitangentStreamImporter.h>
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#include <SceneAPI/FbxSceneBuilder/Importers/FbxImporterUtilities.h>
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#include <SceneAPI/FbxSceneBuilder/Importers/Utilities/AssImpMeshImporterUtilities.h>
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#include <SceneAPI/SceneData/GraphData/MeshVertexBitangentData.h>
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#include <SceneAPI/SDKWrapper/AssImpNodeWrapper.h>
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#include <SceneAPI/SDKWrapper/AssImpSceneWrapper.h>
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#include <SceneAPI/SDKWrapper/AssImpTypeConverter.h>
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#include <SceneAPI/SceneData/GraphData/MeshData.h>
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#include <assimp/scene.h>
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#include <assimp/mesh.h>
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namespace AZ
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{
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namespace SceneAPI
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{
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namespace FbxSceneBuilder
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{
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const char* AssImpBitangentStreamImporter::m_defaultNodeName = "Bitangent";
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AssImpBitangentStreamImporter::AssImpBitangentStreamImporter()
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{
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BindToCall(&AssImpBitangentStreamImporter::ImportBitangentStreams);
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}
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void AssImpBitangentStreamImporter::Reflect(ReflectContext* context)
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{
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SerializeContext* serializeContext = azrtti_cast<SerializeContext*>(context);
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if (serializeContext)
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{
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serializeContext->Class<AssImpBitangentStreamImporter, SceneCore::LoadingComponent>()->Version(2); // LYN-2576
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}
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}
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Events::ProcessingResult AssImpBitangentStreamImporter::ImportBitangentStreams(AssImpSceneNodeAppendedContext& context)
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{
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AZ_TraceContext("Importer", m_defaultNodeName);
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if (!context.m_sourceNode.ContainsMesh())
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{
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return Events::ProcessingResult::Ignored;
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}
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aiNode* currentNode = context.m_sourceNode.GetAssImpNode();
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const aiScene* scene = context.m_sourceScene.GetAssImpScene();
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GetMeshDataFromParentResult meshDataResult(GetMeshDataFromParent(context));
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if (!meshDataResult.IsSuccess())
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{
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return meshDataResult.GetError();
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}
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const SceneData::GraphData::MeshData* const parentMeshData(meshDataResult.GetValue());
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size_t vertexCount = parentMeshData->GetVertexCount();
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int sdkMeshIndex = parentMeshData->GetSdkMeshIndex();
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if (sdkMeshIndex < 0 || sdkMeshIndex >= currentNode->mNumMeshes)
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{
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AZ_Error(Utilities::ErrorWindow, false,
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"Tried to construct bitangent stream attribute for invalid or non-mesh parent data, mesh index is invalid");
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return Events::ProcessingResult::Failure;
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}
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aiMesh* mesh = scene->mMeshes[currentNode->mMeshes[sdkMeshIndex]];
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if (!mesh->HasTangentsAndBitangents())
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{
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return Events::ProcessingResult::Ignored;
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}
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AZStd::shared_ptr<SceneData::GraphData::MeshVertexBitangentData> bitangentStream =
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AZStd::make_shared<AZ::SceneData::GraphData::MeshVertexBitangentData>();
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// AssImp only has one bitangentStream per mesh.
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bitangentStream->SetBitangentSetIndex(0);
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bitangentStream->SetTangentSpace(AZ::SceneAPI::DataTypes::TangentSpace::FromFbx);
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bitangentStream->ReserveContainerSpace(vertexCount);
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for (int v = 0; v < mesh->mNumVertices; ++v)
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{
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const Vector3 bitangent(
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AssImpSDKWrapper::AssImpTypeConverter::ToVector3(mesh->mBitangents[v]));
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bitangentStream->AppendBitangent(bitangent);
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}
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AZStd::string nodeName(AZStd::string::format("%s",m_defaultNodeName));
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Containers::SceneGraph::NodeIndex newIndex =
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context.m_scene.GetGraph().AddChild(context.m_currentGraphPosition, nodeName.c_str());
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Events::ProcessingResult bitangentResults;
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AssImpSceneAttributeDataPopulatedContext dataPopulated(context, bitangentStream, newIndex, nodeName.c_str());
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bitangentResults = Events::Process(dataPopulated);
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if (bitangentResults != Events::ProcessingResult::Failure)
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{
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bitangentResults = AddAttributeDataNodeWithContexts(dataPopulated);
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}
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return bitangentResults;
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}
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} // namespace FbxSceneBuilder
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} // namespace SceneAPI
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} // namespace AZ
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