Distribution

If you don't want to run the Simplygon processing on your local machine you can use distribution to offload the work to another machine. Simplygon support three different distribution methods (Simplygon Grid, Incredibuild and FASTBuild) and you can use distribution in our integrations or directly in the Simplygon API.
Please see Pipeline distribition for more information.

This example shows how to do batch processing using Simplygon Grid.

// 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, std::string inputFile, std::string outputFile)
{
	// Create the reduction pipeline. 
	Simplygon::spReductionPipeline sgReductionPipeline = sg->CreateReductionPipeline();

	Simplygon::spReductionSettings sgReductionSettings = sgReductionPipeline->GetReductionSettings();

	// Set reduction target to triangle ratio with a ratio of 50%. 
	sgReductionSettings->SetReductionTargets( Simplygon::EStopCondition::All, true, false, false, false );
	sgReductionSettings->SetReductionTargetTriangleRatio( 0.5f );

	// Start the reduction pipeline. 
	sgReductionPipeline->RunSceneFromFile(inputFile.c_str(), outputFile.c_str(), Simplygon::EPipelineRunMode::RunDistributedUsingSimplygonGrid);

}

int main()
{
	Simplygon::ISimplygon* sg = NULL;
	Simplygon::EErrorCodes initval = Simplygon::Initialize( &sg );
	if( initval != Simplygon::EErrorCodes::NoError )
	{
		return int(initval);
	}

	std::vector<std::future<void>> jobs;
	for(auto& itr: std::filesystem::recursive_directory_iterator("../Assets/"))
	{
		if (itr.path().extension().compare(".gltf") != 0)
			continue;
		std::string inputFile = itr.path().generic_u8string();
		std::string outputFile = itr.path().stem().concat("_LOD").concat( itr.path().extension().generic_u8string() ).generic_u8string();

		jobs.push_back( std::async( [](Simplygon::ISimplygon * sg, std::string inputFile, std::string outputFile)
		{
			RunReduction(sg, inputFile, outputFile);
		}, sg, inputFile, outputFile ));

	}
	for(auto& job: jobs)
	{
		job.wait();
	}

	Simplygon::Deinitialize(sg);

	return 0;
}

// Copyright (c) Microsoft Corporation. 
// Licensed under the MIT license. 

using System;
using System.IO;
using System.Threading.Tasks;

public class Program
{
    static void RunReduction(Simplygon.ISimplygon sg, string inputFile, string outputFile)
    {
        // Create the reduction pipeline. 
        using (Simplygon.spReductionPipeline sgReductionPipeline = sg.CreateReductionPipeline())
        {
            using (Simplygon.spReductionSettings sgReductionSettings = sgReductionPipeline.GetReductionSettings())
            {
                // Set reduction target to triangle ratio with a ratio of 50%. 
                sgReductionSettings.SetReductionTargets( Simplygon.EStopCondition.All, true, false, false, false );
                sgReductionSettings.SetReductionTargetTriangleRatio( 0.5f );

            }
            // Start the reduction pipeline. 
            sgReductionPipeline.RunSceneFromFile(inputFile, outputFile, Simplygon.EPipelineRunMode.RunDistributedUsingSimplygonGrid);

        }
    }
    static int Main(string[] args)
    {
        using (var sg = Simplygon.Loader.InitSimplygon(out var errorCode, out var errorMessage))
        {
            if (errorCode != Simplygon.EErrorCodes.NoError)
                return (int)errorCode;
            var inputFiles = Directory.EnumerateFiles("../Assets/", "*.gltf", SearchOption.AllDirectories);
            Parallel.ForEach(inputFiles, (inputFile) =>
            {
                string outputFile = Path.Combine(Path.GetFileNameWithoutExtension(inputFile) + "_LOD" + Path.GetExtension(inputFile));
                RunReduction(sg, inputFile, outputFile);
            });
        }

        return 0;
    }
}

# 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 simplygon import simplygon_loader
from simplygon import Simplygon


def RunReduction(sg: Simplygon.ISimplygon, inputFile, outputFile):
    # Create the reduction pipeline. 
    sgReductionPipeline = sg.CreateReductionPipeline()

    sgReductionSettings = sgReductionPipeline.GetReductionSettings()

    # Set reduction target to triangle ratio with a ratio of 50%. 
    sgReductionSettings.SetReductionTargets( Simplygon.EStopCondition_All, True, False, False, False )
    sgReductionSettings.SetReductionTargetTriangleRatio( 0.5 )

    # Start the reduction pipeline. 
    sgReductionPipeline.RunSceneFromFile(inputFile, outputFile, Simplygon.EPipelineRunMode_RunDistributedUsingSimplygonGrid)


if __name__ == '__main__':
    sg = simplygon_loader.init_simplygon()
    if sg is None:
        exit(Simplygon.GetLastInitializationError())

    jobs = list()
    inputFiles = glob.glob('../Assets/' + '/**/*.gltf', recursive=True)
    for inputFile in inputFiles:
        outputFile = Path(inputFile).stem + '_LOD' + Path(inputFile).suffix
        job = threading.Thread(target=RunReduction, args=(sg, inputFile, outputFile))
        jobs.append(job)
        job.start()

    for job in jobs:
        job.join()

    sg = None
    gc.collect()