diff --git a/PanoPainter-OSX/main.cpp b/PanoPainter-OSX/main.cpp
index 3528840..eb92b29 100644
--- a/PanoPainter-OSX/main.cpp
+++ b/PanoPainter-OSX/main.cpp
@@ -11,6 +11,7 @@
 #include <Cocoa/Cocoa.h>
 #include <CoreVideo/CoreVideo.h>
 #include <OpenGL/OpenGL.h>
+#import "objc_utils.h"
 
 @implementation View
 - (void)async_lock
diff --git a/PanoPainter/GameViewController.m b/PanoPainter/GameViewController.m
index ec40b6a..0388b45 100644
--- a/PanoPainter/GameViewController.m
+++ b/PanoPainter/GameViewController.m
@@ -10,6 +10,7 @@
 #import "GameViewController.h"
 #import <OpenGLES/ES3/glext.h>
 #include "app.h"
+#import "objc_utils.h"
 
 @interface GameImagePicker : UIImagePickerController
 {
diff --git a/engine.xcodeproj/project.pbxproj b/engine.xcodeproj/project.pbxproj
index c19563c..95ad724 100644
--- a/engine.xcodeproj/project.pbxproj
+++ b/engine.xcodeproj/project.pbxproj
@@ -232,6 +232,8 @@
 		ADE4911D1F86E65E00FB8E92 /* shapes.cc in Sources */ = {isa = PBXBuildFile; fileRef = ADE491111F86D09100FB8E92 /* shapes.cc */; };
 		ADE4911E1F86E65E00FB8E92 /* sweep_context.cc in Sources */ = {isa = PBXBuildFile; fileRef = ADE491141F86D09100FB8E92 /* sweep_context.cc */; };
 		ADE4911F1F86E65E00FB8E92 /* sweep.cc in Sources */ = {isa = PBXBuildFile; fileRef = ADE491131F86D09100FB8E92 /* sweep.cc */; };
+		ADEBA9062069A4F40085AE16 /* objc_utils.cpp in Sources */ = {isa = PBXBuildFile; fileRef = ADEBA9052069A4F40085AE16 /* objc_utils.cpp */; };
+		ADEBA9092069A50E0085AE16 /* objc_utils.cpp in Sources */ = {isa = PBXBuildFile; fileRef = ADEBA9082069A50E0085AE16 /* objc_utils.cpp */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXCopyFilesBuildPhase section */
@@ -413,6 +415,10 @@
 		ADE491131F86D09100FB8E92 /* sweep.cc */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = sweep.cc; path = libs/poly2tri/poly2tri/sweep/sweep.cc; sourceTree = "<group>"; };
 		ADE491141F86D09100FB8E92 /* sweep_context.cc */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = sweep_context.cc; path = libs/poly2tri/poly2tri/sweep/sweep_context.cc; sourceTree = "<group>"; };
 		ADE491151F86D09100FB8E92 /* cdt.cc */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = cdt.cc; path = libs/poly2tri/poly2tri/sweep/cdt.cc; sourceTree = "<group>"; };
+		ADEBA9042069A4F30085AE16 /* objc_utils.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = objc_utils.h; path = engine/objc_utils.h; sourceTree = SOURCE_ROOT; };
+		ADEBA9052069A4F40085AE16 /* objc_utils.cpp */ = {isa = PBXFileReference; explicitFileType = sourcecode.cpp.objcpp; fileEncoding = 4; name = objc_utils.cpp; path = engine/objc_utils.cpp; sourceTree = SOURCE_ROOT; };
+		ADEBA9072069A50E0085AE16 /* objc_utils.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = objc_utils.h; path = engine/objc_utils.h; sourceTree = SOURCE_ROOT; };
+		ADEBA9082069A50E0085AE16 /* objc_utils.cpp */ = {isa = PBXFileReference; explicitFileType = sourcecode.cpp.objcpp; fileEncoding = 4; name = objc_utils.cpp; path = engine/objc_utils.cpp; sourceTree = SOURCE_ROOT; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -476,6 +482,8 @@
 		AD0E5CA11ECC6F2B00C35669 /* Supporting Files */ = {
 			isa = PBXGroup;
 			children = (
+				ADEBA9052069A4F40085AE16 /* objc_utils.cpp */,
+				ADEBA9042069A4F30085AE16 /* objc_utils.h */,
 				AD0E5CA21ECC6F2B00C35669 /* main.cpp */,
 				AD2FEBDA1F94A742002804DD /* main.h */,
 			);
@@ -687,6 +695,8 @@
 		ADD7D26D1EBF9AE300D5A897 /* Supporting Files */ = {
 			isa = PBXGroup;
 			children = (
+				ADEBA9082069A50E0085AE16 /* objc_utils.cpp */,
+				ADEBA9072069A50E0085AE16 /* objc_utils.h */,
 				ADD7D26E1EBF9AE300D5A897 /* main.m */,
 			);
 			name = "Supporting Files";
@@ -837,6 +847,7 @@
 				AD0E5CB91ECC72AD00C35669 /* node_border.cpp in Sources */,
 				AD0E5CC81ECC72AD00C35669 /* node_popup_menu.cpp in Sources */,
 				AD0E5CB71ECC72AD00C35669 /* layout.cpp in Sources */,
+				ADEBA9062069A4F40085AE16 /* objc_utils.cpp in Sources */,
 				AD0E5CB41ECC72AD00C35669 /* tinyxml2.cpp in Sources */,
 				AD0E5CD81ECC72AD00C35669 /* canvas_modes.cpp in Sources */,
 				AD0E5CA31ECC6F2B00C35669 /* main.cpp in Sources */,
@@ -978,6 +989,7 @@
 				ADBC8C571FAFD05A0094B339 /* node_dialog_cloud.cpp in Sources */,
 				ADD7D2951EBF9E1C00D5A897 /* bezier.cpp in Sources */,
 				AD1063A21EC7AE92002A525F /* node_panel_brush.cpp in Sources */,
+				ADEBA9092069A50E0085AE16 /* objc_utils.cpp in Sources */,
 				AD0E11A51ECA61B900CDA6BB /* jpgd.cpp in Sources */,
 				ADE491181F86E65D00FB8E92 /* shapes.cc in Sources */,
 				ADD7D29E1EBF9E1C00D5A897 /* shape.cpp in Sources */,
diff --git a/engine/app.cpp b/engine/app.cpp
index b06cf9b..a999e57 100644
--- a/engine/app.cpp
+++ b/engine/app.cpp
@@ -354,6 +354,7 @@ void App::update(float dt)
             rec_timer = 0.f;
             
             auto data = new uint8_t[width * height * 4];
+            glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
             glReadBuffer(GL_BACK);
             glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, data);
             {
diff --git a/engine/objc_utils.cpp b/engine/objc_utils.cpp
new file mode 100644
index 0000000..b946c3d
--- /dev/null
+++ b/engine/objc_utils.cpp
@@ -0,0 +1,36 @@
+#include "pch.h"
+#include "objc_utils.h"
+
+#ifdef __OBJC__
+
+
+@implementation PathWithModDate
+@end
+
+@implementation ObjcUtils
++ (NSArray*)getFilesAtPathSortedByModificationDate:(NSString*)folderPath
+{
+    NSArray *allPaths = [NSFileManager.defaultManager contentsOfDirectoryAtPath:folderPath error:nil];
+
+    NSMutableArray *sortedPaths = [NSMutableArray new];
+    for (NSString *path in allPaths) {
+        NSString *fullPath = [folderPath stringByAppendingPathComponent:path];
+
+        NSDictionary *attr = [NSFileManager.defaultManager attributesOfItemAtPath:fullPath error:nil];
+        NSDate *modDate = [attr objectForKey:NSFileModificationDate];
+
+        PathWithModDate *pathWithDate = [[PathWithModDate alloc] init];
+        pathWithDate.path = fullPath;
+        pathWithDate.modDate = modDate;
+        [sortedPaths addObject:pathWithDate];
+    }
+
+    [sortedPaths sortUsingComparator:^(PathWithModDate *path1, PathWithModDate *path2) {
+        // Descending (most recently modified first)
+        return [path2.modDate compare:path1.modDate];
+    }];
+
+    return sortedPaths;
+}
+@end
+#endif
diff --git a/engine/objc_utils.h b/engine/objc_utils.h
new file mode 100644
index 0000000..6046dbe
--- /dev/null
+++ b/engine/objc_utils.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#ifdef __OBJC__
+
+
+@interface PathWithModDate : NSObject
+@property (strong) NSString *path;
+@property (strong) NSDate *modDate;
+@end
+
+@interface ObjcUtils : NSObject
+@end
+
+
+#endif