diff --git a/graph.cpp b/graph.cpp
index de0b6096..25a21cdb 100644
--- a/graph.cpp
+++ b/graph.cpp
@@ -6030,7 +6030,8 @@ void calcparam() {
     if(current_display->sidescreen) cd->xcenter = vid.yres/2;
     }
 
-  cd->radius = vid.scale * cd->scrsize;  
+  cd->radius = vid.scale * cd->scrsize;
+  if(DIM == 3) cd->radius = cd->scrsize;
   realradius = min(realradius, cd->radius);
   
   if(dronemode) { cd->ycenter -= cd->radius; cd->ycenter += vid.fsize/2; cd->ycenter += vid.fsize/2; cd->radius *= 2; }
diff --git a/hypgraph.cpp b/hypgraph.cpp
index 7b70cd50..582311f7 100644
--- a/hypgraph.cpp
+++ b/hypgraph.cpp
@@ -234,8 +234,9 @@ hyperpoint mobius(hyperpoint h, ld angle, ld scale = 1) {
 void applymodel(hyperpoint H, hyperpoint& ret) {
 
   if(DIM == 3) { 
-    ret[0] = H[0]/H[2]; 
-    ret[1] = H[1]/H[2]; 
+    ld ratio = vid.xres / current_display->tanfov / current_display->radius / 2;
+    ret[0] = H[0]/H[2] * ratio;
+    ret[1] = H[1]/H[2] * ratio;
     ret[2] = 1;
     return; 
     }