This example shows how to use the Reduction processor with a process selection set.
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.
#include <string>
#include <stdlib.h>
#include <filesystem>
#include <future>
#include "SimplygonLoader.h"
void RunReduction(Simplygon::ISimplygon* sg)
{
Simplygon::spSceneImporter sgSceneImporter = sg->CreateSceneImporter();
sgSceneImporter->SetImportFilePath( "../Assets/ObscuredTeapot/ObscuredTeapot.obj" );
if(!sgSceneImporter->RunImport())
throw std::exception("Failed to load ObscuredTeapot/ObscuredTeapot.obj.");
Simplygon::spScene sgScene = sgSceneImporter->GetScene();
// Create the reduction processor.
Simplygon::spReductionProcessor sgReductionProcessor = sg->CreateReductionProcessor();
sgReductionProcessor->SetScene( sgScene );
Simplygon::spReductionSettings sgReductionSettings = sgReductionProcessor->GetReductionSettings();
// Add a selection set to the scene with all nodes which should be reduced.
Simplygon::spSelectionSetTable sgSceneSelectionSetTable = sgScene->GetSelectionSetTable();
Simplygon::spSelectionSet sgReductionTargetSelectionSet = sg->CreateSelectionSet();
sgReductionTargetSelectionSet->SetName("ReductionTarget");
Simplygon::spSceneNode sgRootTeapot001 = sgScene->GetNodeFromPath("Root/Teapot001");
if (!sgRootTeapot001.IsNull())
sgReductionTargetSelectionSet->AddItem(sgRootTeapot001->GetNodeGUID());
sgSceneSelectionSetTable->AddSelectionSet(sgReductionTargetSelectionSet);
// Set reduction target to triangle ratio with a ratio of 50%.
sgReductionSettings->SetReductionTargets( Simplygon::EStopCondition::All, true, false, false, false );
sgReductionSettings->SetReductionTargetTriangleRatio( 0.5f );
// Use the selection set created earlier.
sgReductionSettings->SetProcessSelectionSetName( "ReductionTarget" );
// Start the reduction process.
sgReductionProcessor->RunProcessing();
Simplygon::spSceneExporter sgSceneExporter = sg->CreateSceneExporter();
sgSceneExporter->SetScene(sgScene);
sgSceneExporter->SetExportFilePath( "ReductionOutput.fbx" );
if(!sgSceneExporter->RunExport())
throw std::exception("Failed to save ReductionOutput.fbx.");
}
void main()
{
Simplygon::ISimplygon* sg = NULL;
Simplygon::EErrorCodes initval = Simplygon::Initialize( &sg );
if( initval != Simplygon::EErrorCodes::NoError )
{
return;
}
RunReduction(sg);
Simplygon::Deinitialize(sg);
}