Easily Create a 'Fake' Transparent Perspective Wallpaper Using iPhone

Easily Create a ‘Fake’ Transparent Perspective Wallpaper Using iPhone

Using iMovie’s green screen keying feature to composite videos

Anyway, I’m Bored

Working during the day, exploited by capitalists; at night, exploited by mass entertainment, still unable to achieve the realm of working during the day, studying at night, and critiquing on holidays!

Recently, while mindlessly relaxing, I came across a very common wallpaper app advertisement that showcased an eye-catching transparent perspective wallpaper; but it’s obviously impossible, even if the rear camera was capturing the scene in real-time, the angles wouldn’t match so perfectly!

【Youtuber Insider】Attention to American TV shows and series! Exposing the toxic truth that mass media won’t tell you! Working during the day, studying at night, critiquing on holidays! Revealing the secrets of deception｜Anyway, I’m Bored

Final Effect

Let’s Be Smart Youth!

Although I knew it was a special effect, I thought it would be very complicated; unexpectedly, the built-in iMovie app on the iPhone can easily create it with a few taps.

You only need:

1. An iPhone (because we need to use iMovie directly), a phone for the scene
2. A phone or camera for shooting
3. A phone stand or a water bottle… or any object that can support the phone
4. iMovie APP (free download)
5. A green background image (green screen)

You can download this image directly or get it from the internet

These 5 items can create a perspective effect!

Specific process:

1. Set up the phone responsible for filming
2. Shoot a clean video (without the phone in the frame)
3. Set the background of the phone to be filmed as a green screen
4. Shoot a video of the phone operation
5. Open the iMovie APP to composite
6. Done

Start

1. Set up the phone and adjust the filming angle

I used two eel cans and a bottle of mineral water as a phone stand (a vertical phone stand would be even better!)

The purpose of using a phone stand is to ensure that the angles of the two videos are consistent. Otherwise, there will be a shift in the frame, and the effect won’t look as good. It’s impossible to hold the phone and have the angles of both videos be 100% the same.

2. Shoot a clean video

Shoot the clean video as long as you want the final video to be.

3. Set the background of the phone to be filmed as a green screen

“Settings” -> “Wallpaper” -> “Choose the downloaded green screen” -> “Set Both”

Finished image

4. Shoot a video of the phone operation

The length of the video should be the same as the clean video; it’s okay if it’s longer, you can trim it later.

5. Open the iMovie APP to create a project

“+” -> “Movie” -> Select “Clean Video” -> “Create Movie”

Insert the clean video into the project.

6. Move the playhead to the beginning

If you don’t move the playhead to the beginning of the clean video, you will see the message “Move the playhead away from the end to add overlay” when inserting the green screen video.

7. Insert the phone operation video

Click the top right “+” -> “Video” -> “All”

Select “Phone Operation Video” -> “…” -> “Green/Blue Screen” (commonly known as: Chroma Key)

Click the top “Phone Operation Video” -> Scroll to the frame with the green screen -> Click the “Green Area” -> Complete the perspective transparency

8. Composition complete! Export the video

Confirm that the end times of the two videos are consistent, click “Done” in the upper left corner -> “Share” at the bottom -> Select the output target -> Output complete

9. Complete

Tips

1. You can first hide apps with green icons, such as Line, Messages… to prevent exposure (because the keying is based on green)
2. Or you can use a blue background and key out blue; other colors can also be used (but green/blue works best)
3. There are more ways to play with this principle, waiting for you to discover!

Conclusion

Just for fun… I didn’t expect iMovie to be so powerful!

Further Reading

• [Productivity Tools] Abandon Chrome and Embrace the Sidekick Browser

If you have any questions or comments, feel free to contact me.

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本文中文版本

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This article was first published in Traditional Chinese on Medium ➡️ View Here