Fix inverted male reference plane normal

Author: Yoooi0

src/MotionSource/CompositeMotionSource.cs

@@ -48,6 +48,7 @@ public override bool Update()
             if (Reference.Update() && Target.Update(Reference))
             {
                 DebugDraw.DrawSquare(ReferencePosition, ReferencePlaneNormal, ReferencePlaneTangent, Color.white, 0.33f);
+                DebugDraw.DrawLine(ReferencePosition, ReferencePosition + ReferencePlaneNormal * 0.15f, Color.white);
                 DebugDraw.DrawTransform(ReferencePosition, ReferenceUp, ReferenceRight, ReferenceForward, 0.15f);
                 DebugDraw.DrawRay(ReferencePosition, ReferenceUp, ReferenceLength, Color.white);
                 DebugDraw.DrawLine(ReferencePosition, TargetPosition, Color.yellow);

src/MotionSource/References/MaleReference.cs

@@ -123,7 +123,7 @@ public bool Update()
             }
             else
             {
-                PlaneNormal = Vector3.Cross(pelvisMid.position - pelvidLeft.position, pelvisMid.position - pelvisRight.position).normalized;
+                PlaneNormal = -Vector3.Cross(pelvisMid.position - pelvidLeft.position, pelvisMid.position - pelvisRight.position).normalized;
                 PlaneTangent = Vector3.Cross(PlaneNormal, pelvisMid.position - (pelvidLeft.position + pelvisRight.position) / 2).normalized;
             }
 
@@ -148,7 +148,7 @@ private void SetStaticPlaneNormalFromCurrent()
             if (pelvisRight == null || pelvidLeft == null || pelvisMid == null)
                 return;
 
-            var normal = Vector3.Cross(pelvisMid.position - pelvidLeft.position, pelvisMid.position - pelvisRight.position).normalized;
+            var normal = -Vector3.Cross(pelvisMid.position - pelvidLeft.position, pelvisMid.position - pelvisRight.position).normalized;
             var tangent = Vector3.Cross(normal, pelvisMid.position - (pelvidLeft.position + pelvisRight.position) / 2).normalized;
             var angles = Quaternion.LookRotation(normal, Vector3.Cross(normal, tangent)).eulerAngles;