diff --git a/modules/gfx/src/impl/line_trace_renderer.cc b/modules/gfx/src/impl/line_trace_renderer.cc
index abf91fcad5c3bfafd27f5a093ea88951eccb9136..3e89af0cdb2678c545f18738e15e4be718d317e3 100644
--- a/modules/gfx/src/impl/line_trace_renderer.cc
+++ b/modules/gfx/src/impl/line_trace_renderer.cc
@@ -120,7 +120,7 @@ void LineTraceRenderer::PrepareRendering(const BackboneTrace& trace_subset,
                               entry.color1);
           va.AddLine(p0, p1);
           p0=p1;
-#if 1
+#if 0
           VertexID p2 =va.Add(entry.atom.GetPos()+entry.direction, geom::Vec3(), 
                               Color(1,0,0));
           VertexID p3 =va.Add(entry.atom.GetPos()+entry.normal, geom::Vec3(), 
diff --git a/modules/gfx/src/impl/sline_renderer.cc b/modules/gfx/src/impl/sline_renderer.cc
index 92aa0f4836b4b8d603d0279fd655c37206789652..44c5a321678674c30cd64237f79417c6638930ab 100644
--- a/modules/gfx/src/impl/sline_renderer.cc
+++ b/modules/gfx/src/impl/sline_renderer.cc
@@ -83,7 +83,7 @@ void SlineRenderer::PrepareRendering(const BackboneTrace& trace_subset,
         VertexID p1 = va.Add(sit->position, geom::Vec3(),sit->color1);
         va.AddLine(p0,p1);
         p0=p1;
-#if 1
+#if 0
         VertexID p2 = va.Add(sit->position+sit->direction,geom::Vec3(),Color(1,0,0));
         VertexID p3 = va.Add(sit->position+sit->normal,geom::Vec3(),Color(0,1,1));
         va.AddLine(p0,p2);