This example shows how to use the Remeshing pipeline with material casting.
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.
#include <string>
#include <stdlib.h>
#include <filesystem>
#include <future>
#include "SimplygonLoader.h"
void RunRemeshingWithMaterialCasting(Simplygon::ISimplygon* sg)
{
Simplygon::spSceneImporter sgSceneImporter = sg->CreateSceneImporter();
sgSceneImporter->SetImportFilePath( "../Assets/SimplygonMan/SimplygonMan.obj" );
if(!sgSceneImporter->RunImport())
throw std::exception("Failed to load SimplygonMan/SimplygonMan.obj.");
Simplygon::spScene sgScene = sgSceneImporter->GetScene();
// Create the remeshing pipeline.
Simplygon::spRemeshingPipeline sgRemeshingPipeline = sg->CreateRemeshingPipeline();
Simplygon::spRemeshingSettings sgRemeshingSettings = sgRemeshingPipeline->GetRemeshingSettings();
Simplygon::spMappingImageSettings sgMappingImageSettings = sgRemeshingPipeline->GetMappingImageSettings();
// Set on-screen size target for remeshing.
sgRemeshingSettings->SetOnScreenSize( 300 );
// Generates a mapping image which is used after the remeshing to cast new materials to the new
// remeshed object.
sgMappingImageSettings->SetGenerateMappingImage( true );
sgMappingImageSettings->SetApplyNewMaterialIds( true );
sgMappingImageSettings->SetGenerateTangents( true );
sgMappingImageSettings->SetUseFullRetexturing( true );
sgMappingImageSettings->SetTexCoordGeneratorType( Simplygon::ETexcoordGeneratorType::ChartAggregator );
Simplygon::spChartAggregatorSettings sgChartAggregatorSettings = sgMappingImageSettings->GetChartAggregatorSettings();
// Enable the chart aggregator and reuse UV space.
sgChartAggregatorSettings->SetChartAggregatorMode( Simplygon::EChartAggregatorMode::SurfaceArea );
sgChartAggregatorSettings->SetSeparateOverlappingCharts( false );
Simplygon::spMappingImageOutputMaterialSettings sgOutputMaterialSettings = sgMappingImageSettings->GetOutputMaterialSettings(0);
// Setting the size of the output material for the mapping image. This will be the output size of the
// textures when we do material casting in a later stage.
sgOutputMaterialSettings->SetTextureWidth( 2048 );
sgOutputMaterialSettings->SetTextureHeight( 2048 );
// Add diffuse material caster to pipeline.
Simplygon::spColorCaster sgDiffuseCaster = sg->CreateColorCaster();
Simplygon::spColorCasterSettings sgDiffuseCasterSettings = sgDiffuseCaster->GetColorCasterSettings();
sgDiffuseCasterSettings->SetMaterialChannel( "Diffuse" );
sgDiffuseCasterSettings->SetOutputImageFileFormat( Simplygon::EImageOutputFormat::PNG );
sgRemeshingPipeline->AddMaterialCaster( sgDiffuseCaster, 0 );
// Add normals material caster to pipeline.
Simplygon::spNormalCaster sgNormalsCaster = sg->CreateNormalCaster();
Simplygon::spNormalCasterSettings sgNormalsCasterSettings = sgNormalsCaster->GetNormalCasterSettings();
sgNormalsCasterSettings->SetMaterialChannel( "Normals" );
sgNormalsCasterSettings->SetGenerateTangentSpaceNormals( true );
sgNormalsCasterSettings->SetOutputImageFileFormat( Simplygon::EImageOutputFormat::PNG );
sgRemeshingPipeline->AddMaterialCaster( sgNormalsCaster, 0 );
// Start the remeshing pipeline.
sgRemeshingPipeline->RunScene(sgScene, Simplygon::EPipelineRunMode::RunInThisProcess);
// Get the processed scene.
Simplygon::spScene sgProcessedScene = sgRemeshingPipeline->GetProcessedScene();
Simplygon::spSceneExporter sgSceneExporter = sg->CreateSceneExporter();
sgSceneExporter->SetScene(sgProcessedScene);
sgSceneExporter->SetExportFilePath( "RemeshingOutput.fbx" );
if(!sgSceneExporter->RunExport())
throw std::exception("Failed to save RemeshingOutput.fbx.");
}
void main()
{
Simplygon::ISimplygon* sg = NULL;
Simplygon::EErrorCodes initval = Simplygon::Initialize( &sg );
if( initval != Simplygon::EErrorCodes::NoError )
{
return;
}
RunRemeshingWithMaterialCasting(sg);
Simplygon::Deinitialize(sg);
}