This example shows how to use the Aggregation processor with a process selection set.
cpp
// 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.
auto importResult = sgSceneImporter->Run();
if (Simplygon::Failed(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();
std::string outputScenePath = std::string("output\\") + std::string("AggregationWithProcessSelectionSet") + std::string("_") + std::string(path);
sgSceneExporter->SetExportFilePath(outputScenePath.c_str());
sgSceneExporter->SetScene(sgScene);
// Run scene exporter.
auto exportResult = sgSceneExporter->Run();
if (Simplygon::Failed(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", "CheckLog: 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", "CheckLog: 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", "CheckLog: 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", "CheckLog: No warnings.");
}
// Error out if Simplygon has errors.
if (hasErrors)
{
throw std::exception("Processing failed with an error");
}
}
void RunAggregation(Simplygon::ISimplygon* sg)
{
// Load scene to process.
printf("%s\n", "Load scene to process.");
Simplygon::spScene sgScene = LoadScene(sg, "../../../Assets/ObscuredTeapot/ObscuredTeapot.obj");
// Create the aggregation processor.
Simplygon::spAggregationProcessor sgAggregationProcessor = sg->CreateAggregationProcessor();
sgAggregationProcessor->SetScene( sgScene );
Simplygon::spAggregationSettings sgAggregationSettings = sgAggregationProcessor->GetAggregationSettings();
// Add a selection set to the scene with all nodes which should be aggregated.
Simplygon::spSelectionSetTable sgSceneSelectionSetTable = sgScene->GetSelectionSetTable();
Simplygon::spSelectionSet sgAggregationTargetSelectionSet = sg->CreateSelectionSet();
sgAggregationTargetSelectionSet->SetName("AggregationTarget");
Simplygon::spSceneNode sgRootTeapot001 = sgScene->GetNodeFromPath("Root/Teapot001");
if (!sgRootTeapot001.IsNull())
sgAggregationTargetSelectionSet->AddItem(sgRootTeapot001->GetNodeGUID());
sgSceneSelectionSetTable->AddSelectionSet(sgAggregationTargetSelectionSet);
// Merge all geometries into a single geometry.
sgAggregationSettings->SetMergeGeometries( true );
// Use the selection set created earlier.
sgAggregationSettings->SetProcessSelectionSetName( "AggregationTarget" );
// Start the aggregation process.
printf("%s\n", "Start the aggregation process.");
sgAggregationProcessor->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);
}
RunAggregation(sg);
Simplygon::Deinitialize(sg);
return 0;
}
csharp
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
using System;
using System.IO;
using System.Threading.Tasks;
public class Program
{
static Simplygon.spScene LoadScene(Simplygon.ISimplygon sg, string path)
{
// Create scene importer
using Simplygon.spSceneImporter sgSceneImporter = sg.CreateSceneImporter();
sgSceneImporter.SetImportFilePath(path);
// Run scene importer.
var importResult = sgSceneImporter.Run();
if (Simplygon.Simplygon.Failed(importResult))
{
throw new System.Exception("Failed to load scene.");
}
Simplygon.spScene sgScene = sgSceneImporter.GetScene();
return sgScene;
}
static void SaveScene(Simplygon.ISimplygon sg, Simplygon.spScene sgScene, string path)
{
// Create scene exporter.
using Simplygon.spSceneExporter sgSceneExporter = sg.CreateSceneExporter();
string outputScenePath = string.Join("", new string[] { "output\\", "AggregationWithProcessSelectionSet", "_", path });
sgSceneExporter.SetExportFilePath(outputScenePath);
sgSceneExporter.SetScene(sgScene);
// Run scene exporter.
var exportResult = sgSceneExporter.Run();
if (Simplygon.Simplygon.Failed(exportResult))
{
throw new System.Exception("Failed to save scene.");
}
}
static void CheckLog(Simplygon.ISimplygon sg)
{
// Check if any errors occurred.
bool hasErrors = sg.ErrorOccurred();
if (hasErrors)
{
Simplygon.spStringArray errors = sg.CreateStringArray();
sg.GetErrorMessages(errors);
var errorCount = errors.GetItemCount();
if (errorCount > 0)
{
Console.WriteLine("CheckLog: Errors:");
for (uint errorIndex = 0; errorIndex < errorCount; ++errorIndex)
{
string errorString = errors.GetItem((int)errorIndex);
Console.WriteLine(errorString);
}
sg.ClearErrorMessages();
}
}
else
{
Console.WriteLine("CheckLog: No errors.");
}
// Check if any warnings occurred.
bool hasWarnings = sg.WarningOccurred();
if (hasWarnings)
{
Simplygon.spStringArray warnings = sg.CreateStringArray();
sg.GetWarningMessages(warnings);
var warningCount = warnings.GetItemCount();
if (warningCount > 0)
{
Console.WriteLine("CheckLog: Warnings:");
for (uint warningIndex = 0; warningIndex < warningCount; ++warningIndex)
{
string warningString = warnings.GetItem((int)warningIndex);
Console.WriteLine(warningString);
}
sg.ClearWarningMessages();
}
}
else
{
Console.WriteLine("CheckLog: No warnings.");
}
// Error out if Simplygon has errors.
if (hasErrors)
{
throw new System.Exception("Processing failed with an error");
}
}
static void RunAggregation(Simplygon.ISimplygon sg)
{
// Load scene to process.
Console.WriteLine("Load scene to process.");
Simplygon.spScene sgScene = LoadScene(sg, "../../../Assets/ObscuredTeapot/ObscuredTeapot.obj");
// Create the aggregation processor.
using Simplygon.spAggregationProcessor sgAggregationProcessor = sg.CreateAggregationProcessor();
sgAggregationProcessor.SetScene( sgScene );
using Simplygon.spAggregationSettings sgAggregationSettings = sgAggregationProcessor.GetAggregationSettings();
// Add a selection set to the scene with all nodes which should be aggregated.
using Simplygon.spSelectionSetTable sgSceneSelectionSetTable = sgScene.GetSelectionSetTable();
using Simplygon.spSelectionSet sgAggregationTargetSelectionSet = sg.CreateSelectionSet();
sgAggregationTargetSelectionSet.SetName("AggregationTarget");
Simplygon.spSceneNode sgRootTeapot001 = sgScene.GetNodeFromPath("Root/Teapot001");
if (!sgRootTeapot001.IsNull())
sgAggregationTargetSelectionSet.AddItem(sgRootTeapot001.GetNodeGUID());
sgSceneSelectionSetTable.AddSelectionSet(sgAggregationTargetSelectionSet);
// Merge all geometries into a single geometry.
sgAggregationSettings.SetMergeGeometries( true );
// Use the selection set created earlier.
sgAggregationSettings.SetProcessSelectionSetName( "AggregationTarget" );
// Start the aggregation process.
Console.WriteLine("Start the aggregation process.");
sgAggregationProcessor.RunProcessing();
// Save processed scene.
Console.WriteLine("Save processed scene.");
SaveScene(sg, sgScene, "Output.fbx");
// Check log for any warnings or errors.
Console.WriteLine("Check log for any warnings or errors.");
CheckLog(sg);
}
static int Main(string[] args)
{
using var sg = Simplygon.Loader.InitSimplygon(out var errorCode, out var errorMessage);
if (errorCode != Simplygon.EErrorCodes.NoError)
{
Console.WriteLine( $"Failed to initialize Simplygon: ErrorCode({(int)errorCode}) {errorMessage}" );
return (int)errorCode;
}
RunAggregation(sg);
return 0;
}
}
python
# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.
import math
import os
import sys
import glob
import gc
import threading
from pathlib import Path
from simplygon10 import simplygon_loader
from simplygon10 import Simplygon
def LoadScene(sg: Simplygon.ISimplygon, path: str):
# Create scene importer
sgSceneImporter = sg.CreateSceneImporter()
sgSceneImporter.SetImportFilePath(path)
# Run scene importer.
importResult = sgSceneImporter.Run()
if Simplygon.Failed(importResult):
raise Exception('Failed to load scene.')
sgScene = sgSceneImporter.GetScene()
return sgScene
def SaveScene(sg: Simplygon.ISimplygon, sgScene: Simplygon.spScene, path: str):
# Create scene exporter.
sgSceneExporter = sg.CreateSceneExporter()
outputScenePath = ''.join(['output\\', 'AggregationWithProcessSelectionSet', '_', path])
sgSceneExporter.SetExportFilePath(outputScenePath)
sgSceneExporter.SetScene(sgScene)
# Run scene exporter.
exportResult = sgSceneExporter.Run()
if Simplygon.Failed(exportResult):
raise Exception('Failed to save scene.')
def CheckLog(sg: Simplygon.ISimplygon):
# Check if any errors occurred.
hasErrors = sg.ErrorOccurred()
if hasErrors:
errors = sg.CreateStringArray()
sg.GetErrorMessages(errors)
errorCount = errors.GetItemCount()
if errorCount > 0:
print('CheckLog: Errors:')
for errorIndex in range(errorCount):
errorString = errors.GetItem(errorIndex)
print(errorString)
sg.ClearErrorMessages()
else:
print('CheckLog: No errors.')
# Check if any warnings occurred.
hasWarnings = sg.WarningOccurred()
if hasWarnings:
warnings = sg.CreateStringArray()
sg.GetWarningMessages(warnings)
warningCount = warnings.GetItemCount()
if warningCount > 0:
print('CheckLog: Warnings:')
for warningIndex in range(warningCount):
warningString = warnings.GetItem(warningIndex)
print(warningString)
sg.ClearWarningMessages()
else:
print('CheckLog: No warnings.')
# Error out if Simplygon has errors.
if hasErrors:
raise Exception('Processing failed with an error')
def RunAggregation(sg: Simplygon.ISimplygon):
# Load scene to process.
print("Load scene to process.")
sgScene = LoadScene(sg, '../../../Assets/ObscuredTeapot/ObscuredTeapot.obj')
# Create the aggregation processor.
sgAggregationProcessor = sg.CreateAggregationProcessor()
sgAggregationProcessor.SetScene( sgScene )
sgAggregationSettings = sgAggregationProcessor.GetAggregationSettings()
# Add a selection set to the scene with all nodes which should be aggregated.
sgSceneSelectionSetTable = sgScene.GetSelectionSetTable()
sgAggregationTargetSelectionSet = sg.CreateSelectionSet()
sgAggregationTargetSelectionSet.SetName("AggregationTarget")
sgRootTeapot001 = sgScene.GetNodeFromPath('Root/Teapot001')
if sgRootTeapot001 is not None:
sgAggregationTargetSelectionSet.AddItem(sgRootTeapot001.GetNodeGUID())
sgSceneSelectionSetTable.AddSelectionSet(sgAggregationTargetSelectionSet)
# Merge all geometries into a single geometry.
sgAggregationSettings.SetMergeGeometries( True )
# Use the selection set created earlier.
sgAggregationSettings.SetProcessSelectionSetName( 'AggregationTarget' )
# Start the aggregation process.
print("Start the aggregation process.")
sgAggregationProcessor.RunProcessing()
# Save processed scene.
print("Save processed scene.")
SaveScene(sg, sgScene, 'Output.fbx')
# Check log for any warnings or errors.
print("Check log for any warnings or errors.")
CheckLog(sg)
if __name__ == '__main__':
sg = simplygon_loader.init_simplygon()
if sg is None:
exit(Simplygon.GetLastInitializationError())
RunAggregation(sg)
sg = None
gc.collect()