This example shows how to use the geometry data caster.
// 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("GeometryDataCasting") + 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", "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 RunGeometryDataDasting(Simplygon::ISimplygon* sg)
{
// Load scene to process.
Simplygon::spScene sgScene = LoadScene(sg, "../../../Assets/SimplygonMan/SimplygonMan.obj");
// Create the remeshing processor.
Simplygon::spRemeshingProcessor sgRemeshingProcessor = sg->CreateRemeshingProcessor();
sgRemeshingProcessor->SetScene( sgScene );
Simplygon::spRemeshingSettings sgRemeshingSettings = sgRemeshingProcessor->GetRemeshingSettings();
Simplygon::spMappingImageSettings sgMappingImageSettings = sgRemeshingProcessor->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 );
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 );
// Start the remeshing process.
printf("%s\n", "Start the remeshing process.");
sgRemeshingProcessor->RunProcessing();
// Setup and run the geometry data caster casting Coords to a texture.
printf("%s\n", "Setup and run the geometry data caster casting Coords to a texture.");
Simplygon::spGeometryDataCaster sgGeometryData_CoordsCaster = sg->CreateGeometryDataCaster();
sgGeometryData_CoordsCaster->SetMappingImage( sgRemeshingProcessor->GetMappingImage() );
sgGeometryData_CoordsCaster->SetSourceMaterials( sgScene->GetMaterialTable() );
sgGeometryData_CoordsCaster->SetSourceTextures( sgScene->GetTextureTable() );
sgGeometryData_CoordsCaster->SetOutputFilePath( "GeometryData_CoordsTexture" );
Simplygon::spGeometryDataCasterSettings sgGeometryData_CoordsCasterSettings = sgGeometryData_CoordsCaster->GetGeometryDataCasterSettings();
sgGeometryData_CoordsCasterSettings->SetMaterialChannel( "GeometryData_Coords" );
sgGeometryData_CoordsCasterSettings->SetOutputImageFileFormat( Simplygon::EImageOutputFormat::PNG );
sgGeometryData_CoordsCasterSettings->SetOutputPixelFormat( Simplygon::EPixelFormat::R16G16B16 );
sgGeometryData_CoordsCasterSettings->SetFillMode( Simplygon::EAtlasFillMode::NoFill );
sgGeometryData_CoordsCasterSettings->SetGeometryDataFieldType( Simplygon::EGeometryDataFieldType::Coords );
sgGeometryData_CoordsCasterSettings->SetGeometryDataFieldIndex( 0 );
sgGeometryData_CoordsCaster->RunProcessing();
std::string geometrydata_coordsTextureFilePath = sgGeometryData_CoordsCaster->GetOutputFilePath().c_str();
// Setup and run the geometry data caster casting Normals to a texture.
printf("%s\n", "Setup and run the geometry data caster casting Normals to a texture.");
Simplygon::spGeometryDataCaster sgGeometryData_NormalsCaster = sg->CreateGeometryDataCaster();
sgGeometryData_NormalsCaster->SetMappingImage( sgRemeshingProcessor->GetMappingImage() );
sgGeometryData_NormalsCaster->SetSourceMaterials( sgScene->GetMaterialTable() );
sgGeometryData_NormalsCaster->SetSourceTextures( sgScene->GetTextureTable() );
sgGeometryData_NormalsCaster->SetOutputFilePath( "GeometryData_NormalsTexture" );
Simplygon::spGeometryDataCasterSettings sgGeometryData_NormalsCasterSettings = sgGeometryData_NormalsCaster->GetGeometryDataCasterSettings();
sgGeometryData_NormalsCasterSettings->SetMaterialChannel( "GeometryData_Normals" );
sgGeometryData_NormalsCasterSettings->SetOutputImageFileFormat( Simplygon::EImageOutputFormat::PNG );
sgGeometryData_NormalsCasterSettings->SetOutputPixelFormat( Simplygon::EPixelFormat::R16G16B16 );
sgGeometryData_NormalsCasterSettings->SetFillMode( Simplygon::EAtlasFillMode::NoFill );
sgGeometryData_NormalsCasterSettings->SetGeometryDataFieldType( Simplygon::EGeometryDataFieldType::Normals );
sgGeometryData_NormalsCasterSettings->SetGeometryDataFieldIndex( 0 );
sgGeometryData_NormalsCaster->RunProcessing();
std::string geometrydata_normalsTextureFilePath = sgGeometryData_NormalsCaster->GetOutputFilePath().c_str();
// Setup and run the geometry data caster casting MaterialIds to a texture.
printf("%s\n", "Setup and run the geometry data caster casting MaterialIds to a texture.");
Simplygon::spGeometryDataCaster sgGeometryData_MaterialIdsCaster = sg->CreateGeometryDataCaster();
sgGeometryData_MaterialIdsCaster->SetMappingImage( sgRemeshingProcessor->GetMappingImage() );
sgGeometryData_MaterialIdsCaster->SetSourceMaterials( sgScene->GetMaterialTable() );
sgGeometryData_MaterialIdsCaster->SetSourceTextures( sgScene->GetTextureTable() );
sgGeometryData_MaterialIdsCaster->SetOutputFilePath( "GeometryData_MaterialIdsTexture" );
Simplygon::spGeometryDataCasterSettings sgGeometryData_MaterialIdsCasterSettings = sgGeometryData_MaterialIdsCaster->GetGeometryDataCasterSettings();
sgGeometryData_MaterialIdsCasterSettings->SetMaterialChannel( "GeometryData_MaterialIds" );
sgGeometryData_MaterialIdsCasterSettings->SetOutputImageFileFormat( Simplygon::EImageOutputFormat::PNG );
sgGeometryData_MaterialIdsCasterSettings->SetOutputPixelFormat( Simplygon::EPixelFormat::R8 );
sgGeometryData_MaterialIdsCasterSettings->SetFillMode( Simplygon::EAtlasFillMode::NoFill );
sgGeometryData_MaterialIdsCasterSettings->SetGeometryDataFieldType( Simplygon::EGeometryDataFieldType::MaterialIds );
sgGeometryData_MaterialIdsCasterSettings->SetGeometryDataFieldIndex( 0 );
sgGeometryData_MaterialIdsCaster->RunProcessing();
std::string geometrydata_materialidsTextureFilePath = sgGeometryData_MaterialIdsCaster->GetOutputFilePath().c_str();
// Update scene with new casted textures.
Simplygon::spMaterialTable sgMaterialTable = sg->CreateMaterialTable();
Simplygon::spTextureTable sgTextureTable = sg->CreateTextureTable();
Simplygon::spMaterial sgMaterial = sg->CreateMaterial();
Simplygon::spTexture sgGeometryData_CoordsTexture = sg->CreateTexture();
sgGeometryData_CoordsTexture->SetName( "GeometryData_Coords" );
sgGeometryData_CoordsTexture->SetFilePath( geometrydata_coordsTextureFilePath.c_str() );
sgTextureTable->AddTexture( sgGeometryData_CoordsTexture );
Simplygon::spShadingTextureNode sgGeometryData_CoordsTextureShadingNode = sg->CreateShadingTextureNode();
sgGeometryData_CoordsTextureShadingNode->SetTexCoordLevel( 0 );
sgGeometryData_CoordsTextureShadingNode->SetTextureName( "GeometryData_Coords" );
sgMaterial->AddMaterialChannel( "GeometryData_Coords" );
sgMaterial->SetShadingNetwork( "GeometryData_Coords", sgGeometryData_CoordsTextureShadingNode );
Simplygon::spTexture sgGeometryData_NormalsTexture = sg->CreateTexture();
sgGeometryData_NormalsTexture->SetName( "GeometryData_Normals" );
sgGeometryData_NormalsTexture->SetFilePath( geometrydata_normalsTextureFilePath.c_str() );
sgTextureTable->AddTexture( sgGeometryData_NormalsTexture );
Simplygon::spShadingTextureNode sgGeometryData_NormalsTextureShadingNode = sg->CreateShadingTextureNode();
sgGeometryData_NormalsTextureShadingNode->SetTexCoordLevel( 0 );
sgGeometryData_NormalsTextureShadingNode->SetTextureName( "GeometryData_Normals" );
sgMaterial->AddMaterialChannel( "GeometryData_Normals" );
sgMaterial->SetShadingNetwork( "GeometryData_Normals", sgGeometryData_NormalsTextureShadingNode );
Simplygon::spTexture sgGeometryData_MaterialIdsTexture = sg->CreateTexture();
sgGeometryData_MaterialIdsTexture->SetName( "GeometryData_MaterialIds" );
sgGeometryData_MaterialIdsTexture->SetFilePath( geometrydata_materialidsTextureFilePath.c_str() );
sgTextureTable->AddTexture( sgGeometryData_MaterialIdsTexture );
Simplygon::spShadingTextureNode sgGeometryData_MaterialIdsTextureShadingNode = sg->CreateShadingTextureNode();
sgGeometryData_MaterialIdsTextureShadingNode->SetTexCoordLevel( 0 );
sgGeometryData_MaterialIdsTextureShadingNode->SetTextureName( "GeometryData_MaterialIds" );
sgMaterial->AddMaterialChannel( "GeometryData_MaterialIds" );
sgMaterial->SetShadingNetwork( "GeometryData_MaterialIds", sgGeometryData_MaterialIdsTextureShadingNode );
sgMaterialTable->AddMaterial( sgMaterial );
sgScene->GetTextureTable()->Clear();
sgScene->GetMaterialTable()->Clear();
sgScene->GetTextureTable()->Copy(sgTextureTable);
sgScene->GetMaterialTable()->Copy(sgMaterialTable);
// 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);
}
RunGeometryDataDasting(sg);
Simplygon::Deinitialize(sg);
return 0;
}