Method distanceConeGain

src/core/PannerNode.cpp:487–522

}

float PannerNode::distanceConeGain(ContextRenderLock & r)
{
    auto listener = r.context()->listener();

    /// @fixme these values should be per sample, not per quantum
    FloatPoint3D listenerPosition = {
        listener->positionX()->value(),
        listener->positionY()->value(),
        listener->positionZ()->value()};

    /// @fixme these values should be per sample, not per quantum
    FloatPoint3D position = {
        positionX()->value(),
        positionY()->value(),
        positionZ()->value()};

    double listenerDistance = magnitude(position - listenerPosition);  // "distanceTo"

    double distanceGain = m_distanceEffect->gain(listenerDistance);

    m_distanceGain->setValue(static_cast<float>(distanceGain));

    // FIXME: could optimize by caching coneGain

    /// @fixme these values should be per sample, not per quantum
    FloatPoint3D orientation = {
        orientationX()->value(),
        orientationY()->value(),
        orientationZ()->value()};

    double coneGain = m_coneEffect->gain(position, orientation, listenerPosition);

    m_coneGain->setValue(static_cast<float>(coneGain));

    return float(distanceGain * coneGain);
}

void PannerNode::notifyAudioSourcesConnectedToNode(ContextRenderLock & r, AudioNode * node)
{