This example shows how to use the Reduction processor with repair settings.
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
#include <string>
#include <stdlib.h>
#include <filesystem>
#include <future>
#include "SimplygonLoader.h"
Simplygon::spScene LoadScene(Simplygon::ISimplygon* sg, const char* path)
{
// Create scene importer
Simplygon::spSceneImporter sgSceneImporter = sg->CreateSceneImporter();
sgSceneImporter->SetImportFilePath(path);
// Run scene importer.
bool importResult = sgSceneImporter->RunImport();
if (!importResult)
{
throw std::exception("Failed to load scene.");
}
Simplygon::spScene sgScene = sgSceneImporter->GetScene();
return sgScene;
}
void SaveScene(Simplygon::ISimplygon* sg, Simplygon::spScene sgScene, const char* path)
{
// Create scene exporter.
Simplygon::spSceneExporter sgSceneExporter = sg->CreateSceneExporter();
sgSceneExporter->SetExportFilePath(path);
sgSceneExporter->SetScene(sgScene);
// Run scene exporter.
bool exportResult = sgSceneExporter->RunExport();
if (!exportResult)
{
throw std::exception("Failed to save scene.");
}
}
void CheckLog(Simplygon::ISimplygon* sg)
{
// Check if any errors occurred.
bool hasErrors = sg->ErrorOccurred();
if (hasErrors)
{
Simplygon::spStringArray errors = sg->CreateStringArray();
sg->GetErrorMessages(errors);
auto errorCount = errors->GetItemCount();
if (errorCount > 0)
{
printf("%s\n", "Errors:");
for (auto errorIndex = 0U; errorIndex < errorCount; ++errorIndex)
{
Simplygon::spString errorString = errors->GetItem((int)errorIndex);
printf("%s\n", errorString.c_str());
}
sg->ClearErrorMessages();
}
}
else
{
printf("%s\n", "No errors.");
}
// Check if any warnings occurred.
bool hasWarnings = sg->WarningOccurred();
if (hasWarnings)
{
Simplygon::spStringArray warnings = sg->CreateStringArray();
sg->GetWarningMessages(warnings);
auto warningCount = warnings->GetItemCount();
if (warningCount > 0)
{
printf("%s\n", "Warnings:");
for (auto warningIndex = 0U; warningIndex < warningCount; ++warningIndex)
{
Simplygon::spString warningString = warnings->GetItem((int)warningIndex);
printf("%s\n", warningString.c_str());
}
sg->ClearWarningMessages();
}
}
else
{
printf("%s\n", "No warnings.");
}
}
void RunReduction(Simplygon::ISimplygon* sg)
{
// Load scene to process.
printf("%s\n", "Load scene to process.");
Simplygon::spScene sgScene = LoadScene(sg, "../../../Assets/SimplygonMan/SimplygonMan.obj");
// Create the reduction processor.
Simplygon::spReductionProcessor sgReductionProcessor = sg->CreateReductionProcessor();
sgReductionProcessor->SetScene( sgScene );
Simplygon::spReductionSettings sgReductionSettings = sgReductionProcessor->GetReductionSettings();
Simplygon::spRepairSettings sgRepairSettings = sgReductionProcessor->GetRepairSettings();
// Set reduction target to triangle ratio with a ratio of 50%.
sgReductionSettings->SetReductionTargets( Simplygon::EStopCondition::All, true, false, false, false );
sgReductionSettings->SetReductionTargetTriangleRatio( 0.5f );
// The number of repair passes. Higher value is slower but give better quality.
sgRepairSettings->SetProgressivePasses( 3 );
// Enable vertex welding.
sgRepairSettings->SetUseWelding( true );
sgRepairSettings->SetWeldDist( 0.0f );
// Remove T-junktions.
sgRepairSettings->SetUseTJunctionRemover( true );
sgRepairSettings->SetTJuncDist( 0.0f );
// No restriction to the weld process.
sgRepairSettings->SetWeldOnlyBetweenSceneNodes( false );
sgRepairSettings->SetWeldOnlyBorderVertices( false );
sgRepairSettings->SetWeldOnlyWithinMaterial( false );
sgRepairSettings->SetWeldOnlyWithinSceneNode( false );
// Start the reduction process.
printf("%s\n", "Start the reduction process.");
sgReductionProcessor->RunProcessing();
// Save processed scene.
printf("%s\n", "Save processed scene.");
SaveScene(sg, sgScene, "Output.fbx");
// Check log for any warnings or errors.
printf("%s\n", "Check log for any warnings or errors.");
CheckLog(sg);
}
int main()
{
Simplygon::ISimplygon* sg = NULL;
Simplygon::EErrorCodes initval = Simplygon::Initialize( &sg );
if( initval != Simplygon::EErrorCodes::NoError )
{
printf( "Failed to initialize Simplygon: ErrorCode(%d)", (int)initval );
return int(initval);
}
RunReduction(sg);
Simplygon::Deinitialize(sg);
return 0;
}