alpha blending enabled

diff --git a/cmd/smyrna/topview.c b/cmd/smyrna/topview.c
index d8a4079e57fdc94dbf8bdd497c1bf2dab0bf5e17..5609c6d7f457e2de23853195a48258b67c8f136a 100755 (executable)
--- a/cmd/smyrna/topview.c
+++ b/cmd/smyrna/topview.c
@@ -867,6 +867,10 @@ static int drawtopviewedgelabels(Agraph_t * g)
 
 void drawTopViewGraph(Agraph_t * g)
 {
+    
+    glEnable (GL_BLEND);
+    glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+    glDisable(GL_DEPTH_TEST);
     drawtopviewnodes(g);
     drawtopviewlabels(g);
     drawtopviewedges(g);