Method loadStandardLibraries

source/MaterialXView/Viewer.cpp:1847–1893

}

void Viewer::loadStandardLibraries()
{
    // Initialize the standard library.
    try
    {
        _stdLib = mx::createDocument();
        _xincludeFiles = mx::loadLibraries(_libraryFolders, _searchPath, _stdLib);
        if (_xincludeFiles.empty())
        {
            std::cerr << "Could not find standard data libraries on the given search path: " << _searchPath.asString() << std::endl;
        }
    }
    catch (std::exception& e)
    {
        std::cerr << "Failed to load standard data libraries: " << e.what() << std::endl;
        return;
    }

    // Initialize unit management.
    mx::UnitTypeDefPtr distanceTypeDef = _stdLib->getUnitTypeDef("distance");
    _distanceUnitConverter = mx::LinearUnitConverter::create(distanceTypeDef);
    _unitRegistry->addUnitConverter(distanceTypeDef, _distanceUnitConverter);
    mx::UnitTypeDefPtr angleTypeDef = _stdLib->getUnitTypeDef("angle");
    mx::LinearUnitConverterPtr angleConverter = mx::LinearUnitConverter::create(angleTypeDef);
    _unitRegistry->addUnitConverter(angleTypeDef, angleConverter);

    // Create the list of supported distance units.
    auto unitScales = _distanceUnitConverter->getUnitScale();
    _distanceUnitOptions.resize(unitScales.size());
    for (const auto& unitScale : unitScales)
    {
        int location = _distanceUnitConverter->getUnitAsInteger(unitScale.first);
        _distanceUnitOptions[location] = unitScale.first;
    }

    // Initialize the generator contexts.
    initContext(_genContext);
#ifndef MATERIALXVIEW_METAL_BACKEND
    initContext(_genContextEssl);
#endif
#if MATERIALX_BUILD_GEN_OSL
    initContext(_genContextOsl);
#endif
#if MATERIALX_BUILD_GEN_MDL
    initContext(_genContextMdl);
#endif
}

bool Viewer::keyboard_event(int key, int scancode, int action, int modifiers)
{