we might have foreground3 too

render.py

@@ -95,7 +95,15 @@ def compose(clips, target=150, base=1024, voice_over=None):
         else:
             foley = fg
         if 'foreground2' in clip:
-            if chance(seq, 0.5):
+            if 'foreground3' in clip:
+                n = seq()
+                if n <= 3:  # 0,1,2,3
+                    clip['foreground']
+                elif n <= 6:  # 4,5,6
+                    clip['foreground2']
+                else:  # 7,8,9
+                    clip['foreground3']
+            elif chance(seq, 0.5):
                 fg = clip['foreground2']
 
         scene['front']['V1'].append({