NSceneSpectatorVis::EOrientationMode Mode

NSceneSpectatorVis::EOrientationMode::None
NSceneSpectatorVis::EOrientationMode::WatchNearestTrajPoint
NSceneSpectatorVis::EOrientationMode::WatchNearestVisibleTrajPoint

bool WatchVisible_UseDecimateTraj

float WatchVisible_MaxDist

float WatchVisible_MinDist

float DecimationInterval