From bcba4efee84031d39f71ea64ee8b3697ec0f1f51 Mon Sep 17 00:00:00 2001
From: Simon Corsin <simon@corsin.me>
Date: Mon, 16 May 2016 11:50:57 -0400
Subject: [PATCH] Fixed filter with overlayImage returning isEmpty. Fixes #306

---
 Library/Sources/SCFilter.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Library/Sources/SCFilter.m b/Library/Sources/SCFilter.m
index 94aa9808..63220a1f 100644
--- a/Library/Sources/SCFilter.m
+++ b/Library/Sources/SCFilter.m
@@ -335,7 +335,7 @@ - (void)writeToFile:(NSURL *)fileUrl error:(NSError *__autoreleasing *)error {
 - (BOOL)isEmpty {
     BOOL isEmpty = YES;
     
-    if (_CIFilter != nil) {
+    if (_CIFilter != nil || _overlayImage != nil) {
         return NO;
     }