diff --git a/hypgraph.cpp b/hypgraph.cpp
index 3a493a1b..081b98da 100644
--- a/hypgraph.cpp
+++ b/hypgraph.cpp
@@ -2046,6 +2046,9 @@ EX bool do_draw(cell *c, const transmatrix& T) {
 
   if(hybrid::pmap) return hybrid::do_draw(c, T);
   if(WDIM == 3) {
+    // do not care about cells outside of the track
+    if(GDIM == 3 && racing::on && c->land == laMemory && cells_drawn >= S7+1) return false;
+
     if(cells_drawn > vid.cells_drawn_limit) return false;
     if(cells_drawn < 50) { limited_generation(c); return true; }
     if(nil && pmodel == mdGeodesic) {