cut()

void MayaFlux::Kriya::Chimera::cut	(	size_t	layer,
		double	seconds
	)

Jump a ring or collection layer to a moment this many seconds behind the live head.

A lagged layer keeps following its lag from there, so a lag that varies carries on from the new moment. Layers fed by an image ignore it.

Parameters

layer	Layer index.
seconds	Distance behind the write head, at least two frames.

Definition at line 50 of file Chimera.cpp.

{
    if (!m_state) {
        return;
    }
 
    auto& target = m_state->layers.at(layer);
    if (!target.ring && !target.collection) {
        return;
    }
 
    if (target.lag) {
        const double elapsed = std::max(
            static_cast<double>(m_state->ticks) / m_state->frame_rate - target.delay, 0.0);
        target.lag_offset = seconds - (*target.lag)(elapsed);
    } else if (target.ring) {
        target.position = static_cast<double>(target.ring->get_write_head())
            - seconds * target.ring->get_frame_rate();
        target.entered = true;
    } else {
        const double rate = target.collection_rate > 0.0 ? target.collection_rate : m_state->frame_rate;
        target.position = static_cast<double>(target.collection->get_write_head()) - seconds * rate;
        target.entered = true;
    }
}

References m_state, and rate.