public Keyframe(Keyframe parent1, Keyframe parent2, double interpTime)
{
Time = interpTime;
double a = (parent1.Time == parent2.Time) ? 0.5 :
(this.Time - parent1.Time) / (parent2.Time - parent1.Time);
this.Frame = Frame3f.Interpolate(parent1.Frame, parent2.Frame, (float)a);
}
/// <summary>
/// Construct new keyframe that interpolates between parent1 and parent2.
/// Argument is a time in range [parent1.Time,parent2.Time], not a lerp-alpha!!
/// </summary>
public Keyframe(Keyframe parent1, Keyframe parent2, double interpTime)
{
Time = interpTime;
// [RMS] catch weird inputs in debug?
Util.gDevAssert(interpTime >= parent1.Time && interpTime <= parent2.Time);
if (interpTime <= parent1.Time)
{
this.Frame = parent1.Frame;
}
else if (interpTime >= parent2.Time)
{
this.Frame = parent2.Frame;
}
else
{
double a = (parent1.Time == parent2.Time) ? 0.5 :
(this.Time - parent1.Time) / (parent2.Time - parent1.Time);
this.Frame = Frame3f.Interpolate(parent1.Frame, parent2.Frame, (float)a);
}
}