(no commit message)

diff --git a/scene.c b/scene.c
index 7d45bbf..34b7462 100644 (file)
--- a/scene.c
+++ b/scene.c
@@ -298,8 +298,13 @@ void display() {
   glMatrixMode(GL_MODELVIEW);\r
   glLoadIdentity();\r
 \r
+  GLfloat zcoord = 5.0 + (zoomFactor*0.2);\r
+  if ( zcoord < 0.0 ) {\r
+    zcoord = 0.0;\r
+  }\r
+\r
   gluLookAt(\r
-    0.0,  0.0,  5.0 + (zoomFactor*0.2),  /* eye is at (x,y,z) */\r
+    0.0,  0.0,  zcoord,  /* eye is at (x,y,z) */\r
     0.0,  0.0,  0.0,  /* center is at (x,y,z) */\r
     0.0,  1.0,  0.0   /* up is in postivie Y direction */\r
     );\r