diff --git a/modules/gfx/src/impl/sline_renderer.cc b/modules/gfx/src/impl/sline_renderer.cc
index 4d26f46e268ee05f0656ab58d4c6210efd8a8116..2b54046dd634acc1da4413aa9d69b7f4960889a9 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(0,1,0));
         VertexID p3 = va.Add(sit->position+sit->normal,geom::Vec3(),Color(1,0,0));
         VertexID p4 = va.Add(sit->position+sit->v2,geom::Vec3(),Color(1,0,1));