Method ProcessGroupTools

Source/Engine/Visject/ShaderGraph.cpp:606–836

}

void ShaderGenerator::ProcessGroupTools(Box* box, Node* node, Value& value)
{
    switch (node->TypeID)
    {
    // Desaturation
    case 2:
    {
        Value input = tryGetValue(node->GetBox(0), Value::Zero).AsFloat3();
        Value scale = tryGetValue(node->GetBox(1), Value::Zero).AsFloat();
        Value luminanceFactors = Value(node->Values[0]);
        auto dot = writeFunction2(node, input, luminanceFactors, TEXT("dot"), ValueType::Float);
        value = writeFunction3(node, input, dot, scale, TEXT("lerp"), ValueType::Float3);
        break;
    }
    // Color Gradient
    case 10:
    {
        Value time, prevTime, curTime;
        Value prevColor, curColor;
        const int32 count = (int32)node->Values[0];
        switch (count)
        {
        case 0:
            // No sample
            value = Value::Zero;
            break;
        case 1:
            // Single sample
            value = Value(node->Values[2]);
            break;
        case 2:
            // Linear blend between 2 samples
            time = tryGetValue(node->GetBox(0), Value::Zero).AsFloat();
            prevTime = Value(node->Values[1]);
            prevColor = Value(node->Values[2]);
            curTime = Value(node->Values[3]);
            curColor = Value(node->Values[4]);
            value = writeLocal(ValueType::Float4, String::Format(
                                   TEXT("lerp({0}, {1}, saturate(({2} - {3}) / ({4} - {3})))"),
                                   prevColor.Value,
                                   curColor.Value,
                                   time.Value,
                                   prevTime.Value,
                                   curTime.Value,
                                   prevTime.Value),
                               node);
            break;
        default:
            time = tryGetValue(node->GetBox(0), Value::Zero).AsFloat();
            prevTime = Value(node->Values[1]);
            prevColor = Value(node->Values[2]);
            value = writeLocal(ValueType::Float4, node);
            for (int32 i = 1; i < count; i++)
            {
                curTime = Value(node->Values[i * 2 + 1]);
                curColor = Value(node->Values[i * 2 + 2]);

                _writer.Write(