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rollup

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spatialfree 2022-11-10 15:07:41 -05:00
parent 91e56cbf13
commit 50a6c35c24
1 changed files with 6 additions and 8 deletions
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14
app/dofs/rolls-cursor/RollsCursor.cs
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@ -23,7 +23,7 @@ class RollsCursor : dof {
// Biased by finger length
float stretch = (fI + fI + fM + fM + fM + fR + fR + fL) / 8f;
Vec3 to = Roll(hand, JointId.Tip, fI, fM, fR, fL);
Vec3 to = Roll(hand, JointId.KnuckleMid, fI, fM, fR, fL);
Vec3 from = Roll(hand, JointId.KnuckleMajor, fI, fM, fR, fL);
Vec3 dir = PullRequest.Direction(to, from);
@ -39,19 +39,17 @@ class RollsCursor : dof {
// design
public Design reach = new Design { str = "1.0", term = "0+m", min = 0 };
// Roll
// based on flexion
// with a "recursive" lerp
// i - m - r - l
// im - mr - rl
// imr - mrl
// imrl
public Vec3 Roll(Hand hand, JointId jointId, float fI, float fM, float fR, float fL) {
Vec3 i = hand.Get(FingerId.Index, jointId).position;
Vec3 m = hand.Get(FingerId.Middle, jointId).position;
Vec3 r = hand.Get(FingerId.Ring, jointId).position;
Vec3 l = hand.Get(FingerId.Little, jointId).position;
fI = PullRequest.Clamp(fI, 0.0001f, 1f);
fM = PullRequest.Clamp(fM, 0.0001f, 1f);
fR = PullRequest.Clamp(fR, 0.0001f, 1f);
fL = PullRequest.Clamp(fL, 0.0001f, 1f);
Vec3 im = Vec3.Lerp(i , m , fM / (fM + fI));
Vec3 mr = Vec3.Lerp( m , r , fR / (fR + fM));
Vec3 rl = Vec3.Lerp( r, l, fL / (fL + fR));