From 84781b5ec6e0a8d864302b1c1dbc4f44c10213b6 Mon Sep 17 00:00:00 2001
From: spatialfree <cadetmerchant@gmail.com>
Date: Fri, 11 Nov 2022 12:35:17 -0500
Subject: [PATCH] exp flexion

---
 app/Rig/Rig.cs                       | 5 +++--
 app/dofs/rolls-cursor/RollsCursor.cs | 1 -
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/app/Rig/Rig.cs b/app/Rig/Rig.cs
index 8775dd8..272e8c4 100644
--- a/app/Rig/Rig.cs
+++ b/app/Rig/Rig.cs
@@ -83,7 +83,7 @@ public class Rig {
     lWrist = new Pose(lCon.pos + lCon.ori * new Vec3(0, 0, 0.052f), lCon.ori);
   }
 
-	public float Flexion(Hand hand, FingerId finger, float deadzone = 0.3f) {
+	public float Flexion(Hand hand, FingerId finger, float deadzone = 0.15f) {
 		float flexion = (Vec3.Dot(
 			PullRequest.Direction(
 				hand.Get(finger, JointId.Tip).position,
@@ -95,7 +95,8 @@ public class Rig {
 			)
 		) + 1f) / 2;
 
-		return Math.Max(flexion - deadzone, 0f) / (1 - deadzone);
+		flexion = Math.Max(flexion - deadzone, 0f) / (1 - deadzone);
+		return flexion * flexion;
 	}
 
   public Vec3 Fullstick(bool chirality) {
diff --git a/app/dofs/rolls-cursor/RollsCursor.cs b/app/dofs/rolls-cursor/RollsCursor.cs
index 8ccc93c..5c19b11 100644
--- a/app/dofs/rolls-cursor/RollsCursor.cs
+++ b/app/dofs/rolls-cursor/RollsCursor.cs
@@ -20,7 +20,6 @@ class RollsCursor : dof {
 			float fR = rig.Flexion(hand, FingerId.Ring);
 			float fL = rig.Flexion(hand, FingerId.Little);
 
-			// Biased by finger length
 			float stretch = (fI + fM + fR + fL) / 4f;
 
 			Vec3 to   = Roll(hand, JointId.KnuckleMid,   fI, fM, fR, fL);