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Merge pull request #12683 from hyperlogic/bug-fix/reduce-elbow-flapping

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Reduce avatar elbow fluttering by disabling pole vectors
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Anthony Thibault 2018-04-02 10:51:28 -07:00 committed by GitHub
commit dc9c9fd0ee
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 12 additions and 8 deletions
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20
libraries/animation/src/Rig.cpp
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@ -1246,6 +1246,7 @@ void Rig::updateHands(bool leftHandEnabled, bool rightHandEnabled, bool hipsEnab
const FBXJointShapeInfo& hipsShapeInfo, const FBXJointShapeInfo& spineShapeInfo,
const FBXJointShapeInfo& spine1ShapeInfo, const FBXJointShapeInfo& spine2ShapeInfo) {
const bool ENABLE_POLE_VECTORS = false;
const float ELBOW_POLE_VECTOR_BLEND_FACTOR = 0.95f;
int hipsIndex = indexOfJoint("Hips");
@ -1268,7 +1269,7 @@ void Rig::updateHands(bool leftHandEnabled, bool rightHandEnabled, bool hipsEnab
int handJointIndex = _animSkeleton->nameToJointIndex("LeftHand");
int armJointIndex = _animSkeleton->nameToJointIndex("LeftArm");
int elbowJointIndex = _animSkeleton->nameToJointIndex("LeftForeArm");
if (!leftArmEnabled && handJointIndex >= 0 && armJointIndex >= 0 && elbowJointIndex >= 0) {
if (ENABLE_POLE_VECTORS && !leftArmEnabled && handJointIndex >= 0 && armJointIndex >= 0 && elbowJointIndex >= 0) {
glm::vec3 poleVector = calculateElbowPoleVector(handJointIndex, elbowJointIndex, armJointIndex, hipsIndex, true);
// smooth toward desired pole vector from previous pole vector... to reduce jitter
@ -1315,7 +1316,7 @@ void Rig::updateHands(bool leftHandEnabled, bool rightHandEnabled, bool hipsEnab
int handJointIndex = _animSkeleton->nameToJointIndex("RightHand");
int armJointIndex = _animSkeleton->nameToJointIndex("RightArm");
int elbowJointIndex = _animSkeleton->nameToJointIndex("RightForeArm");
if (!rightArmEnabled && handJointIndex >= 0 && armJointIndex >= 0 && elbowJointIndex >= 0) {
if (ENABLE_POLE_VECTORS && !rightArmEnabled && handJointIndex >= 0 && armJointIndex >= 0 && elbowJointIndex >= 0) {
glm::vec3 poleVector = calculateElbowPoleVector(handJointIndex, elbowJointIndex, armJointIndex, hipsIndex, false);
// smooth toward desired pole vector from previous pole vector... to reduce jitter
@ -1555,18 +1556,21 @@ void Rig::updateFromControllerParameters(const ControllerParameters& params, flo
updateFeet(leftFootEnabled, rightFootEnabled,
params.primaryControllerPoses[PrimaryControllerType_LeftFoot], params.primaryControllerPoses[PrimaryControllerType_RightFoot]);
if (headEnabled) {
// Blend IK chains toward the joint limit centers, this should stablize head and hand ik.
_animVars.set("solutionSource", (int)AnimInverseKinematics::SolutionSource::RelaxToLimitCenterPoses);
} else {
// Blend IK chains toward the UnderPoses, so some of the animaton motion is present in the IK solution.
_animVars.set("solutionSource", (int)AnimInverseKinematics::SolutionSource::RelaxToUnderPoses);
}
// if the hips or the feet are being controlled.
if (hipsEnabled || rightFootEnabled || leftFootEnabled) {
// for more predictable IK solve from the center of the joint limits, not from the underpose
_animVars.set("solutionSource", (int)AnimInverseKinematics::SolutionSource::RelaxToLimitCenterPoses);
// replace the feet animation with the default pose, this is to prevent unexpected toe wiggling.
_animVars.set("defaultPoseOverlayAlpha", 1.0f);
_animVars.set("defaultPoseOverlayBoneSet", (int)AnimOverlay::BothFeetBoneSet);
} else {
// augment the IK with the underPose.
_animVars.set("solutionSource", (int)AnimInverseKinematics::SolutionSource::RelaxToUnderPoses);
// feet should follow source animation
_animVars.unset("defaultPoseOverlayAlpha");
_animVars.unset("defaultPoseOverlayBoneSet");