docs, see #300

phetsims · Jan 6, 2019 · 619d118 · 619d118
1 parent 4fdc4c8
commit 619d118
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/js/common/model/TemporalMask.js b/js/common/model/TemporalMask.js
@@ -2,7 +2,8 @@
 
 /**
  * Records on and off times of a single source, so that we can determine whether it could have contributed to the value
- * on the lattice at a later time.
+ * on the lattice at a later time.  This is used to prevent artifacts when the wave is turned off, and to restore
+ * the lattice to black (for light).
  *
  * @author Sam Reid (PhET Interactive Simulations)
  */