diff --git a/floorshapes.cpp b/floorshapes.cpp
index 5cf82de6..7a82ad29 100644
--- a/floorshapes.cpp
+++ b/floorshapes.cpp
@@ -285,7 +285,7 @@ void generate_floorshapes_for(int id, cell *c, int siid, int sidir) {
   for(auto pfsh: all_plain_floorshapes) {
     auto& fsh = *pfsh;
 
-    if(!gp::on && !irr::on) {
+    if(!gp::on && !irr::on && !syntetic) {
 
       // standard and binary
       ld hexside = fsh.rad0, heptside = fsh.rad1;
@@ -400,7 +400,7 @@ void generate_floorshapes_for(int id, cell *c, int siid, int sidir) {
     
     sizeto(fsh.b, id);
     
-    if(!gp::on && !irr::on && !binarytiling) {
+    if(!gp::on && !irr::on && !binarytiling && !syntetic) {
       generate_matrices_scale(fsh.scale, fsh.noftype);
       if(nonbitrunc && geosupport_graveyard() < 2 && fsh.shapeid2) {
         if(id == 0) bshape2(fsh.b[0], fsh.prio, fsh.shapeid2, hept_matrices);
@@ -474,6 +474,18 @@ void generate_floorshapes() {
     
   else if(gp::on) { /* will be generated on the fly */ }
   
+  else if(syntetic) {
+    heptagon master;
+    cell model;
+    model.master = &master;
+    synt::parent_index_of(&master) = 0;
+    for(int i=0; i<2*synt::N + (nonbitrunc ? 0 : 2); i++) {
+      synt::id_of(&master) = i;
+      model.type = isize(synt::triangles[i]);
+      generate_floorshapes_for(i, &model, i >= 2*synt::N, 0);
+      }
+    }
+  
   else {
     cell model;
     model.type = S6; generate_floorshapes_for(0, &model, 0, 0);
@@ -592,6 +604,8 @@ void draw_shapevec(cell *c, const transmatrix& V, const vector<hpcshape> &shv, i
     queuepolyat(V, shv[pseudohept(c)], col, prio);
   else if(binarytiling)
     queuepolyat(V, shv[c->type-6], col, prio);
+  else if(syntetic)
+    queuepolyat(V, shv[synt::id_of(c->master)], col, prio);
   else
     queuepolyat(V, shv[ctof(c)], col, prio);
   }
diff --git a/geometry.cpp b/geometry.cpp
index 7bccf539..00af46d8 100644
--- a/geometry.cpp
+++ b/geometry.cpp
@@ -53,7 +53,10 @@ void precalc() {
   int vertexdegree = S6/2;
   ld fmin, fmax;  
 
-  if(syntetic) return;
+  if(syntetic) {
+    synt::prepare();
+    return;
+    }
 
   if(euclid) { 
     // dynamicval<eGeometry> g(geometry, gNormal);
diff --git a/geometry2.cpp b/geometry2.cpp
index 85e57925..69a0cc66 100644
--- a/geometry2.cpp
+++ b/geometry2.cpp
@@ -356,6 +356,10 @@ hyperpoint get_corner_position(cell *c, int cid, ld cf) {
     vertices[6] = get_horopoint(-yy, 0);
     return mid_at_actual(vertices[cid], 3/cf);
     }
+  if(syntetic) {
+    int id = synt::id_of(c->master);
+    return spin(M_PI / c->type * (2*cid+0)) * xpush(synt::circumradius[id/2] * 3 / cf) * C0;
+    }
   if(nonbitrunc) {
     return ddspin(c,cid,S6) * xpush0(hcrossf * 3 / cf);
     }
@@ -394,6 +398,7 @@ hyperpoint midcorner(cell *c, int i, ld v) {
     hyperpoint nlfar = rel * vs2.vertices[(spin+2)%cor2];
     return mid_at(nfar, nlfar, .49);
     }
+  if(syntetic) return C0;
   printf("midcorner not handled\n");
   exit(1);
   }
@@ -411,6 +416,11 @@ hyperpoint nearcorner(cell *c, int i) {
     hyperpoint nc = vs.jpoints[vs.neid[i]];
     return mid_at(C0, nc, .94);
     }
+  if(syntetic) {
+    int id = synt::id_of(c->master);
+    auto& t1 = synt::triangles[id][i];
+    return spin(-t1.first) * xpush(t1.second) * C0;
+    }
   if(binarytiling) {
     ld yx = log(2) / 2;
     ld yy = yx;
@@ -456,7 +466,7 @@ hyperpoint farcorner(cell *c, int i, int which) {
     if(which == 0) return rel * vs2.vertices[(spin+2)%cor2];
     if(which == 1) return rel * vs2.vertices[(spin+cor2-1)%cor2];
     }
-  if(binarytiling)
+  if(binarytiling || syntetic)
     return nearcorner(c, (i+which) % c->type); // lazy
   printf("farcorner not handled\n");
   exit(1);
diff --git a/graph.cpp b/graph.cpp
index c6f5f65a..041e99ed 100644
--- a/graph.cpp
+++ b/graph.cpp
@@ -3190,7 +3190,7 @@ bool placeSidewall(cell *c, int i, int sidepar, const transmatrix& V, int col) {
   
   transmatrix V2 = V * ddspin(c, i);
  
-  if(gp::on || irr::on || binarytiling) {
+  if(gp::on || irr::on || binarytiling || syntetic) {
     draw_shapevec(c, V2, qfi.fshape->gpside[sidepar][i], col, prio);
     return false;
     }
diff --git a/syntetic.cpp b/syntetic.cpp
index c26f4547..3270d25a 100644
--- a/syntetic.cpp
+++ b/syntetic.cpp
@@ -239,8 +239,6 @@ void prepare() {
 
 void initialize(heptagon *h) {
  
-  prepare();
-
   /* initialize the root */
 
   parent_index_of(h) = 0;