# Mapping image settings
Simplygon can generate one or more mapping images, which can be used to cast material data from the original geometry onto the reduced geometry after the processing has completed.
A Mapping image is basically a texture on the reduced geometry where each pixel contains information of which triangle and barycentric coordinate on the original geometry that the pixel corresponds to.
The settings contains basic things like the desired texture dimensions of the mapping image to create, and there is also a setting for whether new texcoords shall be generated and how these texcoords shall be generated on the processed mesh. Texcoords can either be created from scratch when using the Parameterizer, purely based on LOD geometry, or be created from the original texcoords when using the ChartAggregator.
Some settings has a prefix which means they are only relevant when the corresponding GeneratorType is used. Multiple mapping image generation currently only works with the Reduction processor.
# Supported processors
- Reduction processor
- Remeshing processor
- Impostor processor
- Aggregation processor
- Foliage processor
# Example
This example shows how to use the Reduction processor with material casting.
// 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 RunReductionWithMaterialCasting(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::spMappingImageSettings sgMappingImageSettings = sgReductionProcessor->GetMappingImageSettings();
// Set reduction target to triangle ratio with a ratio of 50%.
sgReductionSettings->SetReductionTargets( Simplygon::EStopCondition::All, true, false, false, false );
sgReductionSettings->SetReductionTargetTriangleRatio( 0.5f );
// Generates a mapping image which is used after the reduction to cast new materials to the new
// reduced 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 );
// Start the reduction process.
printf("%s\n", "Start the reduction process.");
sgReductionProcessor->RunProcessing();
// Setup and run the diffuse material casting.
printf("%s\n", "Setup and run the diffuse material casting.");
Simplygon::spColorCaster sgDiffuseCaster = sg->CreateColorCaster();
sgDiffuseCaster->SetMappingImage( sgReductionProcessor->GetMappingImage() );
sgDiffuseCaster->SetSourceMaterials( sgScene->GetMaterialTable() );
sgDiffuseCaster->SetSourceTextures( sgScene->GetTextureTable() );
sgDiffuseCaster->SetOutputFilePath( "DiffuseTexture" );
Simplygon::spColorCasterSettings sgDiffuseCasterSettings = sgDiffuseCaster->GetColorCasterSettings();
sgDiffuseCasterSettings->SetMaterialChannel( "Diffuse" );
sgDiffuseCasterSettings->SetOutputImageFileFormat( Simplygon::EImageOutputFormat::PNG );
sgDiffuseCaster->RunProcessing();
std::string diffuseTextureFilePath = sgDiffuseCaster->GetOutputFilePath();
// Setup and run the normals material casting.
printf("%s\n", "Setup and run the normals material casting.");
Simplygon::spNormalCaster sgNormalsCaster = sg->CreateNormalCaster();
sgNormalsCaster->SetMappingImage( sgReductionProcessor->GetMappingImage() );
sgNormalsCaster->SetSourceMaterials( sgScene->GetMaterialTable() );
sgNormalsCaster->SetSourceTextures( sgScene->GetTextureTable() );
sgNormalsCaster->SetOutputFilePath( "NormalsTexture" );
Simplygon::spNormalCasterSettings sgNormalsCasterSettings = sgNormalsCaster->GetNormalCasterSettings();
sgNormalsCasterSettings->SetMaterialChannel( "Normals" );
sgNormalsCasterSettings->SetGenerateTangentSpaceNormals( true );
sgNormalsCasterSettings->SetOutputImageFileFormat( Simplygon::EImageOutputFormat::PNG );
sgNormalsCaster->RunProcessing();
std::string normalsTextureFilePath = sgNormalsCaster->GetOutputFilePath();
// Update scene with new casted textures.
Simplygon::spMaterialTable sgMaterialTable = sg->CreateMaterialTable();
Simplygon::spTextureTable sgTextureTable = sg->CreateTextureTable();
Simplygon::spMaterial sgMaterial = sg->CreateMaterial();
Simplygon::spTexture sgDiffuseTexture = sg->CreateTexture();
sgDiffuseTexture->SetName( "Diffuse" );
sgDiffuseTexture->SetFilePath( diffuseTextureFilePath.c_str() );
sgTextureTable->AddTexture( sgDiffuseTexture );
Simplygon::spShadingTextureNode sgDiffuseTextureShadingNode = sg->CreateShadingTextureNode();
sgDiffuseTextureShadingNode->SetTexCoordLevel( 0 );
sgDiffuseTextureShadingNode->SetTextureName( "Diffuse" );
sgMaterial->AddMaterialChannel( "Diffuse" );
sgMaterial->SetShadingNetwork( "Diffuse", sgDiffuseTextureShadingNode );
Simplygon::spTexture sgNormalsTexture = sg->CreateTexture();
sgNormalsTexture->SetName( "Normals" );
sgNormalsTexture->SetFilePath( normalsTextureFilePath.c_str() );
sgTextureTable->AddTexture( sgNormalsTexture );
Simplygon::spShadingTextureNode sgNormalsTextureShadingNode = sg->CreateShadingTextureNode();
sgNormalsTextureShadingNode->SetTexCoordLevel( 0 );
sgNormalsTextureShadingNode->SetTextureName( "Normals" );
sgMaterial->AddMaterialChannel( "Normals" );
sgMaterial->SetShadingNetwork( "Normals", sgNormalsTextureShadingNode );
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);
}
RunReductionWithMaterialCasting(sg);
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 Simplygon.spScene LoadScene(Simplygon.ISimplygon sg, string path)
{
// Create scene importer
using Simplygon.spSceneImporter sgSceneImporter = sg.CreateSceneImporter();
sgSceneImporter.SetImportFilePath(path);
// Run scene importer.
bool importResult = sgSceneImporter.RunImport();
if (!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();
sgSceneExporter.SetExportFilePath(path);
sgSceneExporter.SetScene(sgScene);
// Run scene exporter.
bool exportResult = sgSceneExporter.RunExport();
if (!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("Errors:");
for (uint errorIndex = 0; errorIndex < errorCount; ++errorIndex)
{
string errorString = errors.GetItem((int)errorIndex);
Console.WriteLine(errorString);
}
sg.ClearErrorMessages();
}
}
else
{
Console.WriteLine("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("Warnings:");
for (uint warningIndex = 0; warningIndex < warningCount; ++warningIndex)
{
string warningString = warnings.GetItem((int)warningIndex);
Console.WriteLine(warningString);
}
sg.ClearWarningMessages();
}
}
else
{
Console.WriteLine("No warnings.");
}
}
static void RunReductionWithMaterialCasting(Simplygon.ISimplygon sg)
{
// Load scene to process.
Console.WriteLine("Load scene to process.");
Simplygon.spScene sgScene = LoadScene(sg, "../../../Assets/SimplygonMan/SimplygonMan.obj");
// Create the reduction processor.
using Simplygon.spReductionProcessor sgReductionProcessor = sg.CreateReductionProcessor();
sgReductionProcessor.SetScene( sgScene );
using Simplygon.spReductionSettings sgReductionSettings = sgReductionProcessor.GetReductionSettings();
using Simplygon.spMappingImageSettings sgMappingImageSettings = sgReductionProcessor.GetMappingImageSettings();
// Set reduction target to triangle ratio with a ratio of 50%.
sgReductionSettings.SetReductionTargets( Simplygon.EStopCondition.All, true, false, false, false );
sgReductionSettings.SetReductionTargetTriangleRatio( 0.5f );
// Generates a mapping image which is used after the reduction to cast new materials to the new
// reduced object.
sgMappingImageSettings.SetGenerateMappingImage( true );
sgMappingImageSettings.SetApplyNewMaterialIds( true );
sgMappingImageSettings.SetGenerateTangents( true );
sgMappingImageSettings.SetUseFullRetexturing( true );
sgMappingImageSettings.SetTexCoordGeneratorType( Simplygon.ETexcoordGeneratorType.ChartAggregator );
using Simplygon.spChartAggregatorSettings sgChartAggregatorSettings = sgMappingImageSettings.GetChartAggregatorSettings();
// Enable the chart aggregator and reuse UV space.
sgChartAggregatorSettings.SetChartAggregatorMode( Simplygon.EChartAggregatorMode.SurfaceArea );
sgChartAggregatorSettings.SetSeparateOverlappingCharts( false );
using 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 reduction process.
Console.WriteLine("Start the reduction process.");
sgReductionProcessor.RunProcessing();
// Setup and run the diffuse material casting.
Console.WriteLine("Setup and run the diffuse material casting.");
string diffuseTextureFilePath;
using Simplygon.spColorCaster sgDiffuseCaster = sg.CreateColorCaster();
sgDiffuseCaster.SetMappingImage( sgReductionProcessor.GetMappingImage() );
sgDiffuseCaster.SetSourceMaterials( sgScene.GetMaterialTable() );
sgDiffuseCaster.SetSourceTextures( sgScene.GetTextureTable() );
sgDiffuseCaster.SetOutputFilePath( "DiffuseTexture" );
using Simplygon.spColorCasterSettings sgDiffuseCasterSettings = sgDiffuseCaster.GetColorCasterSettings();
sgDiffuseCasterSettings.SetMaterialChannel( "Diffuse" );
sgDiffuseCasterSettings.SetOutputImageFileFormat( Simplygon.EImageOutputFormat.PNG );
sgDiffuseCaster.RunProcessing();
diffuseTextureFilePath = sgDiffuseCaster.GetOutputFilePath();
// Setup and run the normals material casting.
Console.WriteLine("Setup and run the normals material casting.");
string normalsTextureFilePath;
using Simplygon.spNormalCaster sgNormalsCaster = sg.CreateNormalCaster();
sgNormalsCaster.SetMappingImage( sgReductionProcessor.GetMappingImage() );
sgNormalsCaster.SetSourceMaterials( sgScene.GetMaterialTable() );
sgNormalsCaster.SetSourceTextures( sgScene.GetTextureTable() );
sgNormalsCaster.SetOutputFilePath( "NormalsTexture" );
using Simplygon.spNormalCasterSettings sgNormalsCasterSettings = sgNormalsCaster.GetNormalCasterSettings();
sgNormalsCasterSettings.SetMaterialChannel( "Normals" );
sgNormalsCasterSettings.SetGenerateTangentSpaceNormals( true );
sgNormalsCasterSettings.SetOutputImageFileFormat( Simplygon.EImageOutputFormat.PNG );
sgNormalsCaster.RunProcessing();
normalsTextureFilePath = sgNormalsCaster.GetOutputFilePath();
// Update scene with new casted textures.
using Simplygon.spMaterialTable sgMaterialTable = sg.CreateMaterialTable();
using Simplygon.spTextureTable sgTextureTable = sg.CreateTextureTable();
using Simplygon.spMaterial sgMaterial = sg.CreateMaterial();
using Simplygon.spTexture sgDiffuseTexture = sg.CreateTexture();
sgDiffuseTexture.SetName( "Diffuse" );
sgDiffuseTexture.SetFilePath( diffuseTextureFilePath );
sgTextureTable.AddTexture( sgDiffuseTexture );
using Simplygon.spShadingTextureNode sgDiffuseTextureShadingNode = sg.CreateShadingTextureNode();
sgDiffuseTextureShadingNode.SetTexCoordLevel( 0 );
sgDiffuseTextureShadingNode.SetTextureName( "Diffuse" );
sgMaterial.AddMaterialChannel( "Diffuse" );
sgMaterial.SetShadingNetwork( "Diffuse", sgDiffuseTextureShadingNode );
using Simplygon.spTexture sgNormalsTexture = sg.CreateTexture();
sgNormalsTexture.SetName( "Normals" );
sgNormalsTexture.SetFilePath( normalsTextureFilePath );
sgTextureTable.AddTexture( sgNormalsTexture );
using Simplygon.spShadingTextureNode sgNormalsTextureShadingNode = sg.CreateShadingTextureNode();
sgNormalsTextureShadingNode.SetTexCoordLevel( 0 );
sgNormalsTextureShadingNode.SetTextureName( "Normals" );
sgMaterial.AddMaterialChannel( "Normals" );
sgMaterial.SetShadingNetwork( "Normals", sgNormalsTextureShadingNode );
sgMaterialTable.AddMaterial( sgMaterial );
sgScene.GetTextureTable().Clear();
sgScene.GetMaterialTable().Clear();
sgScene.GetTextureTable().Copy(sgTextureTable);
sgScene.GetMaterialTable().Copy(sgMaterialTable);
// 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;
}
RunReductionWithMaterialCasting(sg);
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 LoadScene(sg: Simplygon.ISimplygon, path: str):
# Create scene importer
sgSceneImporter = sg.CreateSceneImporter()
sgSceneImporter.SetImportFilePath(path)
# Run scene importer.
importResult = sgSceneImporter.RunImport()
if not 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()
sgSceneExporter.SetExportFilePath(path)
sgSceneExporter.SetScene(sgScene)
# Run scene exporter.
exportResult = sgSceneExporter.RunExport()
if not 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("Errors:")
for errorIndex in range(errorCount):
errorString = errors.GetItem(errorIndex)
print(errorString)
sg.ClearErrorMessages()
else:
print("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("Warnings:")
for warningIndex in range(warningCount):
warningString = warnings.GetItem(warningIndex)
print(warningString)
sg.ClearWarningMessages()
else:
print("No warnings.")
def RunReductionWithMaterialCasting(sg: Simplygon.ISimplygon):
# Load scene to process.
print("Load scene to process.")
sgScene = LoadScene(sg, "../../../Assets/SimplygonMan/SimplygonMan.obj")
# Create the reduction processor.
sgReductionProcessor = sg.CreateReductionProcessor()
sgReductionProcessor.SetScene( sgScene )
sgReductionSettings = sgReductionProcessor.GetReductionSettings()
sgMappingImageSettings = sgReductionProcessor.GetMappingImageSettings()
# Set reduction target to triangle ratio with a ratio of 50%.
sgReductionSettings.SetReductionTargets( Simplygon.EStopCondition_All, True, False, False, False )
sgReductionSettings.SetReductionTargetTriangleRatio( 0.5 )
# Generates a mapping image which is used after the reduction to cast new materials to the new
# reduced object.
sgMappingImageSettings.SetGenerateMappingImage( True )
sgMappingImageSettings.SetApplyNewMaterialIds( True )
sgMappingImageSettings.SetGenerateTangents( True )
sgMappingImageSettings.SetUseFullRetexturing( True )
sgMappingImageSettings.SetTexCoordGeneratorType( Simplygon.ETexcoordGeneratorType_ChartAggregator )
sgChartAggregatorSettings = sgMappingImageSettings.GetChartAggregatorSettings()
# Enable the chart aggregator and reuse UV space.
sgChartAggregatorSettings.SetChartAggregatorMode( Simplygon.EChartAggregatorMode_SurfaceArea )
sgChartAggregatorSettings.SetSeparateOverlappingCharts( False )
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 reduction process.
print("Start the reduction process.")
sgReductionProcessor.RunProcessing()
# Setup and run the diffuse material casting.
print("Setup and run the diffuse material casting.")
sgDiffuseCaster = sg.CreateColorCaster()
sgDiffuseCaster.SetMappingImage( sgReductionProcessor.GetMappingImage() )
sgDiffuseCaster.SetSourceMaterials( sgScene.GetMaterialTable() )
sgDiffuseCaster.SetSourceTextures( sgScene.GetTextureTable() )
sgDiffuseCaster.SetOutputFilePath( 'DiffuseTexture' )
sgDiffuseCasterSettings = sgDiffuseCaster.GetColorCasterSettings()
sgDiffuseCasterSettings.SetMaterialChannel( 'Diffuse' )
sgDiffuseCasterSettings.SetOutputImageFileFormat( Simplygon.EImageOutputFormat_PNG )
sgDiffuseCaster.RunProcessing()
diffuseTextureFilePath = sgDiffuseCaster.GetOutputFilePath()
# Setup and run the normals material casting.
print("Setup and run the normals material casting.")
sgNormalsCaster = sg.CreateNormalCaster()
sgNormalsCaster.SetMappingImage( sgReductionProcessor.GetMappingImage() )
sgNormalsCaster.SetSourceMaterials( sgScene.GetMaterialTable() )
sgNormalsCaster.SetSourceTextures( sgScene.GetTextureTable() )
sgNormalsCaster.SetOutputFilePath( 'NormalsTexture' )
sgNormalsCasterSettings = sgNormalsCaster.GetNormalCasterSettings()
sgNormalsCasterSettings.SetMaterialChannel( 'Normals' )
sgNormalsCasterSettings.SetGenerateTangentSpaceNormals( True )
sgNormalsCasterSettings.SetOutputImageFileFormat( Simplygon.EImageOutputFormat_PNG )
sgNormalsCaster.RunProcessing()
normalsTextureFilePath = sgNormalsCaster.GetOutputFilePath()
# Update scene with new casted textures.
sgMaterialTable = sg.CreateMaterialTable()
sgTextureTable = sg.CreateTextureTable()
sgMaterial = sg.CreateMaterial()
sgDiffuseTexture = sg.CreateTexture()
sgDiffuseTexture.SetName( 'Diffuse' )
sgDiffuseTexture.SetFilePath( diffuseTextureFilePath )
sgTextureTable.AddTexture( sgDiffuseTexture )
sgDiffuseTextureShadingNode = sg.CreateShadingTextureNode()
sgDiffuseTextureShadingNode.SetTexCoordLevel( 0 )
sgDiffuseTextureShadingNode.SetTextureName( 'Diffuse' )
sgMaterial.AddMaterialChannel( 'Diffuse' )
sgMaterial.SetShadingNetwork( 'Diffuse', sgDiffuseTextureShadingNode )
sgNormalsTexture = sg.CreateTexture()
sgNormalsTexture.SetName( 'Normals' )
sgNormalsTexture.SetFilePath( normalsTextureFilePath )
sgTextureTable.AddTexture( sgNormalsTexture )
sgNormalsTextureShadingNode = sg.CreateShadingTextureNode()
sgNormalsTextureShadingNode.SetTexCoordLevel( 0 )
sgNormalsTextureShadingNode.SetTextureName( 'Normals' )
sgMaterial.AddMaterialChannel( 'Normals' )
sgMaterial.SetShadingNetwork( 'Normals', sgNormalsTextureShadingNode )
sgMaterialTable.AddMaterial( sgMaterial )
sgScene.GetTextureTable().Clear()
sgScene.GetMaterialTable().Clear()
sgScene.GetTextureTable().Copy(sgTextureTable)
sgScene.GetMaterialTable().Copy(sgMaterialTable)
# 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())
RunReductionWithMaterialCasting(sg)
sg = None
gc.collect()