commit 86782a25ec54d374caf796a713c92de7ddf78ef2
Author: Leszek Koltunski <leszek@distoretedandroid.org>
Date:   Tue Mar 7 15:07:39 2017 +0000

    Minor

diff --git a/src/main/java/org/distorted/library/DistortedOutputSurface.java b/src/main/java/org/distorted/library/DistortedOutputSurface.java
index b1ed520..a04d422 100644
--- a/src/main/java/org/distorted/library/DistortedOutputSurface.java
+++ b/src/main/java/org/distorted/library/DistortedOutputSurface.java
@@ -103,7 +103,14 @@ abstract class DistortedOutputSurface extends DistortedSurface implements Distor
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 // PUBLIC API
 ///////////////////////////////////////////////////////////////////////////////////////////////////
-
+/**
+ * Draws all the attached children to this OutputSurface.
+ * <p>
+ * Must be called from a thread holding OpenGL Context.
+ *
+ * @param time Current time, in milliseconds. This will be passed to all the Effects stored in the children Nodes.
+ * @return Number of objects rendered.
+ */
   public int render(long time)
     {
     DistortedAttachDaemon.toDo();
@@ -129,7 +136,6 @@ abstract class DistortedOutputSurface extends DistortedSurface implements Distor
     }
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
-
 /**
  * Draws all the attached children to this OutputSurface.
  * <p>