diff --git a/core/src/processing/opengl/PGL.java b/core/src/processing/opengl/PGL.java
index d00798c6a..806ef8fc0 100644
--- a/core/src/processing/opengl/PGL.java
+++ b/core/src/processing/opengl/PGL.java
@@ -627,6 +627,8 @@ public abstract class PGL {
 
 
   private boolean needFBOLayer(boolean clear0) {
+    // TODO: need to revise this, on windows we might not want to use FBO layer
+    // even with anti-aliasing enabled...
     return !clear0 || fboLayerRequested || 1 < numSamples;
   }