Method Generate

Source/Engine/Tools/MaterialGenerator/MaterialGenerator.cpp:152–644

}

bool MaterialGenerator::Generate(WriteStream& source, MaterialInfo& materialInfo, BytesContainer& parametersData)
{
    ASSERT_LOW_LAYER(_layers.Count() > 0);

    String inputs[In_MAX];
    Array<StringAnsiView, FixedAllocation<8>> features;

    // Setup and prepare layers
    _writer.Clear();
    _includes.Clear();
    _callStack.Clear();
    _parameters.Clear();
    _localIndex = 0;
    _vsToPsInterpolants.Clear();
    _treeLayer = nullptr;
    _graphStack.Clear();
    for (int32 i = 0; i < _layers.Count(); i++)
    {
        auto layer = _layers[i];

        // Prepare
        layer->Prepare();
        prepareLayer(_layers[i], true);

        // Assign layer variable name for initial layers
        layer->Usage[0].VarName = TEXT("material");
        if (i != 0)
            layer->Usage[0].VarName += StringUtils::ToString(i);
    }
    inputs[In_VersionNumber] = StringUtils::ToString(MATERIAL_GRAPH_VERSION);

    // Cache data
    MaterialLayer* baseLayer = GetRootLayer();
    auto* baseNode = baseLayer->Root;
    _treeLayerVarName = baseLayer->GetVariableName(nullptr);
    _treeLayer = baseLayer;
    _graphStack.Add(&_treeLayer->Graph);
    const MaterialGraphBox* layerInputBox = baseLayer->Root->GetBox(0);
    const bool isLayered = layerInputBox->HasConnection();

    // Initialize features
#define ADD_FEATURE(type) \
    { \
        StringAnsiView typeName(#type, ARRAY_COUNT(#type) - 1); \
        features.Add(typeName); \
        if (!Features.ContainsKey(typeName)) \
        { \
            ScopeLock lock(FeaturesLock); \
            auto& feature = Features[typeName]; \
            type::Generate(feature.Data); \
            if (feature.Init()) \
                return true; \
        } else if (COMPILE_WITH_DEV_ENV) Features[typeName].CheckReload(); \
    }
    const bool isOpaque = materialInfo.BlendMode == MaterialBlendMode::Opaque;
    switch (baseLayer->Domain)
    {
    case MaterialDomain::Surface: