Improve the derivative class for hermites. Compare http://synfig.org/images/a/a8...

[synfig.git] / synfig-core / trunk / src / synfig / valuenode_segcalctangent.cpp

diff --git a/synfig-core/trunk/src/synfig/valuenode_segcalctangent.cpp b/synfig-core/trunk/src/synfig/valuenode_segcalctangent.cpp
index 8d57261..a4b735c 100644 (file)
--- a/synfig-core/trunk/src/synfig/valuenode_segcalctangent.cpp
+++ b/synfig-core/trunk/src/synfig/valuenode_segcalctangent.cpp
@@ -82,9 +82,9 @@ ValueNode_SegCalcTangent::operator()(Time t)const
        Segment segment((*segment_)(t).get(Segment()));
 
        etl::hermite<Vector> curve(segment.p1,segment.p2,segment.t1,segment.t2);
-       etl::derivative< etl::hermite<Vector> > deriv(curve, 0.0001);
+       etl::derivative< etl::hermite<Vector> > deriv(curve);
 
-       return deriv((*amount_)(t).get(Real()))*(0.5);
+       return deriv((*amount_)(t).get(Real()));
 }