public void SamplingKeyFrames()
{
var keyFrame0 = new KeyFrame <QuaternionF>(TimeSpan.FromSeconds(1.0), _random.NextQuaternionF());
var keyFrame1 = new KeyFrame <QuaternionF>(TimeSpan.FromSeconds(2.0), _random.NextQuaternionF());
var keyFrame2 = new KeyFrame <QuaternionF>(TimeSpan.FromSeconds(3.0), _random.NextQuaternionF());
var animation = new QuaternionFKeyFrameAnimation();
animation.KeyFrames.Add(keyFrame0);
animation.KeyFrames.Add(keyFrame1);
animation.KeyFrames.Add(keyFrame2);
var defaultSource = _random.NextQuaternionF();
var defaultTarget = _random.NextQuaternionF();
// Without interpolation
animation.EnableInterpolation = false;
Assert.AreEqual(keyFrame0.Value, animation.GetValue(TimeSpan.FromSeconds(1.0), defaultSource, defaultTarget));
Assert.AreEqual(keyFrame0.Value, animation.GetValue(TimeSpan.FromSeconds(1.75), defaultSource, defaultTarget));
Assert.AreEqual(keyFrame1.Value, animation.GetValue(TimeSpan.FromSeconds(2.0), defaultSource, defaultTarget));
Assert.AreEqual(keyFrame1.Value, animation.GetValue(TimeSpan.FromSeconds(2.75), defaultSource, defaultTarget));
Assert.AreEqual(keyFrame2.Value, animation.GetValue(TimeSpan.FromSeconds(3.0), defaultSource, defaultTarget));
// With interpolation
animation.EnableInterpolation = true;
Assert.IsTrue(QuaternionF.AreNumericallyEqual(keyFrame0.Value, animation.GetValue(TimeSpan.FromSeconds(1.0), defaultSource, defaultTarget)));
var expected = InterpolationHelper.Lerp(keyFrame0.Value, keyFrame1.Value, 0.75f);
Assert.AreEqual(expected, animation.GetValue(TimeSpan.FromSeconds(1.75), defaultSource, defaultTarget));
Assert.AreEqual(keyFrame1.Value, animation.GetValue(TimeSpan.FromSeconds(2.0), defaultSource, defaultTarget));
expected = InterpolationHelper.Lerp(keyFrame1.Value, keyFrame2.Value, 0.75f);
Assert.AreEqual(expected, animation.GetValue(TimeSpan.FromSeconds(2.75), defaultSource, defaultTarget));
Assert.AreEqual(keyFrame2.Value, animation.GetValue(TimeSpan.FromSeconds(3.0), defaultSource, defaultTarget));
}
public void EmptyAnimation()
{
var animation = new QuaternionFKeyFrameAnimation();
var defaultSource = _random.NextQuaternionF();
var defaultTarget = _random.NextQuaternionF();
Assert.AreEqual(defaultSource, animation.GetValue(TimeSpan.FromSeconds(0.0), defaultSource, defaultTarget));
Assert.AreEqual(defaultSource, animation.GetValue(TimeSpan.FromSeconds(1.0), defaultSource, defaultTarget));
}
public void ShouldReturnTheFirstOrLastKeyFrame()
{
var keyFrame0 = new KeyFrame <QuaternionF>(TimeSpan.FromSeconds(1.0), _random.NextQuaternionF());
var keyFrame1 = new KeyFrame <QuaternionF>(TimeSpan.FromSeconds(2.0), _random.NextQuaternionF());
var keyFrame2 = new KeyFrame <QuaternionF>(TimeSpan.FromSeconds(3.0), _random.NextQuaternionF());
var animation = new QuaternionFKeyFrameAnimation();
animation.KeyFrames.Add(keyFrame0);
animation.KeyFrames.Add(keyFrame1);
animation.KeyFrames.Add(keyFrame2);
var defaultSource = _random.NextQuaternionF();
var defaultTarget = _random.NextQuaternionF();
// Pre loop
Assert.IsTrue(QuaternionF.AreNumericallyEqual(keyFrame0.Value, animation.GetValue(TimeSpan.FromSeconds(0.0), defaultSource, defaultTarget)));
// Post loop
Assert.IsTrue(QuaternionF.AreNumericallyEqual(keyFrame2.Value, animation.GetValue(TimeSpan.FromSeconds(3.75), defaultSource, defaultTarget)));
}
public void ShouldReturnTheFirstOrLastKeyFrame()
{
var keyFrame0 = new KeyFrame<QuaternionF>(TimeSpan.FromSeconds(1.0), _random.NextQuaternionF());
var keyFrame1 = new KeyFrame<QuaternionF>(TimeSpan.FromSeconds(2.0), _random.NextQuaternionF());
var keyFrame2 = new KeyFrame<QuaternionF>(TimeSpan.FromSeconds(3.0), _random.NextQuaternionF());
var animation = new QuaternionFKeyFrameAnimation();
animation.KeyFrames.Add(keyFrame0);
animation.KeyFrames.Add(keyFrame1);
animation.KeyFrames.Add(keyFrame2);
var defaultSource = _random.NextQuaternionF();
var defaultTarget = _random.NextQuaternionF();
// Pre loop
Assert.IsTrue(QuaternionF.AreNumericallyEqual(keyFrame0.Value, animation.GetValue(TimeSpan.FromSeconds(0.0), defaultSource, defaultTarget)));
// Post loop
Assert.IsTrue(QuaternionF.AreNumericallyEqual(keyFrame2.Value, animation.GetValue(TimeSpan.FromSeconds(3.75), defaultSource, defaultTarget)));
}
public void SamplingKeyFrames()
{
var keyFrame0 = new KeyFrame<QuaternionF>(TimeSpan.FromSeconds(1.0), _random.NextQuaternionF());
var keyFrame1 = new KeyFrame<QuaternionF>(TimeSpan.FromSeconds(2.0), _random.NextQuaternionF());
var keyFrame2 = new KeyFrame<QuaternionF>(TimeSpan.FromSeconds(3.0), _random.NextQuaternionF());
var animation = new QuaternionFKeyFrameAnimation();
animation.KeyFrames.Add(keyFrame0);
animation.KeyFrames.Add(keyFrame1);
animation.KeyFrames.Add(keyFrame2);
var defaultSource = _random.NextQuaternionF();
var defaultTarget = _random.NextQuaternionF();
// Without interpolation
animation.EnableInterpolation = false;
Assert.AreEqual(keyFrame0.Value, animation.GetValue(TimeSpan.FromSeconds(1.0), defaultSource, defaultTarget));
Assert.AreEqual(keyFrame0.Value, animation.GetValue(TimeSpan.FromSeconds(1.75), defaultSource, defaultTarget));
Assert.AreEqual(keyFrame1.Value, animation.GetValue(TimeSpan.FromSeconds(2.0), defaultSource, defaultTarget));
Assert.AreEqual(keyFrame1.Value, animation.GetValue(TimeSpan.FromSeconds(2.75), defaultSource, defaultTarget));
Assert.AreEqual(keyFrame2.Value, animation.GetValue(TimeSpan.FromSeconds(3.0), defaultSource, defaultTarget));
// With interpolation
animation.EnableInterpolation = true;
Assert.IsTrue(QuaternionF.AreNumericallyEqual(keyFrame0.Value, animation.GetValue(TimeSpan.FromSeconds(1.0), defaultSource, defaultTarget)));
var expected = InterpolationHelper.Lerp(keyFrame0.Value, keyFrame1.Value, 0.75f);
Assert.AreEqual(expected, animation.GetValue(TimeSpan.FromSeconds(1.75), defaultSource, defaultTarget));
Assert.AreEqual(keyFrame1.Value, animation.GetValue(TimeSpan.FromSeconds(2.0), defaultSource, defaultTarget));
expected = InterpolationHelper.Lerp(keyFrame1.Value, keyFrame2.Value, 0.75f);
Assert.AreEqual(expected, animation.GetValue(TimeSpan.FromSeconds(2.75), defaultSource, defaultTarget));
Assert.AreEqual(keyFrame2.Value, animation.GetValue(TimeSpan.FromSeconds(3.0), defaultSource, defaultTarget));
}
public void EmptyAnimation()
{
var animation = new QuaternionFKeyFrameAnimation();
var defaultSource = _random.NextQuaternionF();
var defaultTarget = _random.NextQuaternionF();
Assert.AreEqual(defaultSource, animation.GetValue(TimeSpan.FromSeconds(0.0), defaultSource, defaultTarget));
Assert.AreEqual(defaultSource, animation.GetValue(TimeSpan.FromSeconds(1.0), defaultSource, defaultTarget));
}
