# HG changeset patch
# User drewp@bigasterisk.com
# Date 2014-06-14 06:34:19
# Node ID 8748f1f47fe876a10c33d36f38f627417d5c08f3
# Parent  0923efae4588eacc6e280d697107830c030f0d7b

effect can return a list of outputs
Ignore-this: 829d43297718f2257dfd22915b159e63

diff --git a/light9/effecteval/effectloop.py b/light9/effecteval/effectloop.py
--- a/light9/effecteval/effectloop.py
+++ b/light9/effecteval/effectloop.py
@@ -119,7 +119,11 @@ class EffectLoop(object):
         outputs = []
         for e in self.currentEffects:
             try:
-                outputs.append(e.eval(songTime))
+                out = e.eval(songTime)
+                if isinstance(out, (list, tuple)):
+                    outputs.extend(out)
+                else:
+                    outputs.append(out)
             except Exception as exc:
                 now = time.time()
                 if now > self.lastErrorLog + 5: