public IEnumerator TwistChainConstraint_ApplyWeight()
{
var data = SetupConstraintRig();
var constraint = data.constraint;
Transform[] chain = ConstraintsUtils.ExtractChain(constraint.data.root, constraint.data.tip);
// Chain with no constraint.
Vector3[] bindPoseChain = chain.Select(transform => transform.position).ToArray();
var tipTarget = constraint.data.tipTarget;
var rootTarget = constraint.data.rootTarget;
rootTarget.rotation = Quaternion.Euler(0, 0, 0);
tipTarget.rotation = Quaternion.Euler(0, 0, 50);
yield return(null);
// Chain with TwistChain constraint.
Vector3[] weightedChain = chain.Select(transform => transform.position).ToArray();
// In-between chains.
var inBetweenChains = new List <Vector3[]>();
for (int i = 0; i <= 5; ++i)
{
float w = i / 5.0f;
data.constraint.weight = w;
yield return(null);
inBetweenChains.Add(chain.Select(transform => transform.position).ToArray());
}
var floatComparer = new RuntimeRiggingTestFixture.FloatEqualityComparer(k_Epsilon);
for (int i = 0; i <= 5; ++i)
{
Vector3[] prevChain = (i > 0) ? inBetweenChains[i - 1] : bindPoseChain;
Vector3[] currentChain = inBetweenChains[i];
Vector3[] nextChain = (i < 5) ? inBetweenChains[i + 1] : weightedChain;
for (int j = 0; j < bindPoseChain.Length - 1; ++j)
{
Vector2 dir1 = prevChain[j + 1] - prevChain[j];
Vector2 dir2 = currentChain[j + 1] - currentChain[j];
Vector2 dir3 = nextChain[j + 1] - nextChain[j];
float maxAngle = Vector2.Angle(dir1, dir3);
float angle = Vector2.Angle(dir1, dir2);
Assert.That(angle, Is.GreaterThanOrEqualTo(0f).Using(floatComparer));
Assert.That(angle, Is.LessThanOrEqualTo(maxAngle).Using(floatComparer));
}
}
}
public override IEnumerable <EditorCurveBinding> GetConstrainedCurveBindings(RigBuilder rigBuilder, TwistChainConstraint constraint)
{
var bindings = new List <EditorCurveBinding>();
// Retrieve chain in-between root and tip transforms.
Transform[] chain = ConstraintsUtils.ExtractChain(constraint.data.root, constraint.data.tip);
for (int i = 0; i < chain.Length; ++i)
{
EditorCurveBindingUtils.CollectRotationBindings(rigBuilder.transform, chain[i], bindings);
}
return(bindings);
}
public void TwistChainConstraint_TransferMotionToConstraint()
{
var data = TwistChainConstraintTests.SetupConstraintRig();
var constraint = data.constraint;
var rootGO = data.rigData.rootGO;
var rigBuilder = rootGO.GetComponent <RigBuilder>();
var tip = constraint.data.tip;
var root = constraint.data.root;
var clip = new AnimationClip();
// Add keyframes for root and tips.
Transform[] chain = ConstraintsUtils.ExtractChain(root, tip);
var rootPath = AnimationUtility.CalculateTransformPath(root, rootGO.transform);
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(rootPath, typeof(Transform), "localEulerAnglesRaw.x"), AnimationCurve.Constant(0f, 1f, 0f));
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(rootPath, typeof(Transform), "localEulerAnglesRaw.y"), AnimationCurve.Constant(0f, 1f, 0f));
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(rootPath, typeof(Transform), "localEulerAnglesRaw.z"), AnimationCurve.Linear(0f, 0f, 1f, -50f));
var tipPath = AnimationUtility.CalculateTransformPath(tip, rootGO.transform);
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(tipPath, typeof(Transform), "localEulerAnglesRaw.x"), AnimationCurve.Constant(0f, 1f, 0f));
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(tipPath, typeof(Transform), "localEulerAnglesRaw.y"), AnimationCurve.Constant(0f, 1f, 0f));
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(tipPath, typeof(Transform), "localEulerAnglesRaw.z"), AnimationCurve.Linear(0f, 0f, 1f, 50f));
// Also keyframe inbetween keys
for (int i = 1; i < chain.Length - 1; ++i)
{
var path = AnimationUtility.CalculateTransformPath(chain[i], rootGO.transform);
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(path, typeof(Transform), "localEulerAnglesRaw.x"), AnimationCurve.Constant(0f, 1f, 0f));
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(path, typeof(Transform), "localEulerAnglesRaw.y"), AnimationCurve.Constant(0f, 1f, 0f));
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(path, typeof(Transform), "localEulerAnglesRaw.z"), AnimationCurve.Constant(0f, 1f, 0f));
}
RuntimeRiggingEditorTestFixture.TestTransferMotionToConstraint(constraint, rigBuilder, clip, new Transform[] { root, tip }, CompareFlags.Rotation);
}
public void TwistChainConstraint_TransferMotionToSkeleton()
{
var data = TwistChainConstraintTests.SetupConstraintRig();
var constraint = data.constraint;
var rootGO = data.rigData.rootGO;
var rigBuilder = rootGO.GetComponent <RigBuilder>();
var tip = constraint.data.tip;
var root = constraint.data.root;
var tipTarget = constraint.data.tipTarget;
var rootTarget = constraint.data.rootTarget;
var clip = new AnimationClip();
var tipTargetPath = AnimationUtility.CalculateTransformPath(tipTarget, rootGO.transform);
var rootTargetPath = AnimationUtility.CalculateTransformPath(rootTarget, rootGO.transform);
// Add keyframes for twist chain constraint.
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(rootTargetPath, typeof(Transform), "localEulerAnglesRaw.x"), AnimationCurve.Constant(0f, 1f, 0f));
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(rootTargetPath, typeof(Transform), "localEulerAnglesRaw.y"), AnimationCurve.Constant(0f, 1f, 0f));
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(rootTargetPath, typeof(Transform), "localEulerAnglesRaw.z"), AnimationCurve.Linear(0f, 0f, 1f, -50f));
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(tipTargetPath, typeof(Transform), "localEulerAnglesRaw.x"), AnimationCurve.Constant(0f, 1f, 0f));
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(tipTargetPath, typeof(Transform), "localEulerAnglesRaw.y"), AnimationCurve.Constant(0f, 1f, 0f));
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(tipTargetPath, typeof(Transform), "localEulerAnglesRaw.z"), AnimationCurve.Linear(0f, 0f, 1f, 50f));
RuntimeRiggingEditorTestFixture.TestTransferMotionToSkeleton(constraint, rigBuilder, clip, ConstraintsUtils.ExtractChain(root, tip), CompareFlags.TR);
}
