The view 3D switching effect of openGL, selection of learning IOS programming source code, a good reference.

.gitignore
DemoProject
DemoProject-iPad
................\Classes
................\.......\DemoProjectAppDelegate.h
................\.......\DemoProjectAppDelegate.m
................\.......\FlipsideView.h
................\.......\FlipsideView.m
................\.......\FlipsideViewController.h
................\.......\FlipsideViewController.m
................\.......\MainView.h
................\.......\MainView.m
................\.......\MainViewController.h
................\.......\MainViewController.m
................\DemoProject-Info.plist
................\DemoProject.xcodeproj
................\.....................\project.pbxproj
................\DemoProject_Prefix.pch
................\main.m
................\painting.jpg
................\README.txt
................\Resources-iPad
................\..............\FlipsideView.xib
................\..............\MainView.xib
................\..............\MainWindow.xib
...........\Classes
...........\.......\DemoProjectAppDelegate.h
...........\.......\DemoProjectAppDelegate.m
...........\.......\FlipsideView.h
...........\.......\FlipsideView.m
...........\.......\FlipsideViewController.h
...........\.......\FlipsideViewController.m
...........\.......\MainView.h
...........\.......\MainView.m
...........\.......\MainViewController.h
...........\.......\MainViewController.m
...........\DemoProject-Info.plist
...........\DemoProject.xcodeproj
...........\.....................\project.pbxproj
...........\DemoProject_Prefix.pch
...........\FlipsideView.xib
...........\main.m
...........\MainView.xib
...........\MainWindow.xib
...........\painting.jpg
...........\README.txt
...........\table.jpg
FlipReader-iPad
...............\Classes
...............\.......\FlipReaderAppDelegate.h
...............\.......\FlipReaderAppDelegate.m
...............\.......\FlipReaderViewController.h
...............\.......\FlipReaderViewController.m
...............\.......\MyPDFView.h
...............\.......\MyPDFView.m
...............\FlipReader-Info.plist
...............\FlipReader.xcodeproj
...............\....................\project.pbxproj
...............\FlipReaderViewController.xib
...............\FlipReader_Prefix.pch
...............\icon.png
...............\main.m
...............\MainWindow.xib
...............\PDF
...............\...\thinking-forth-color.pdf
...............\...\thinking-forth-cover.pdf
README.md
src
...\Demo2Transition.h
...\Demo2Transition.m
...\Demo3Transition.h
...\Demo3Transition.m
...\DemoTransition.h
...\DemoTransition.m
...\EPGLTransitionView.h
...\EPGLTransitionView.m
...\FlipTransitions.h
...\FlipTransitions.m

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