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FAQ & Tips

chromakey is a green screen app designed to assist when filming the screen of an iPad or iPhone. It's meant to be the green screen itself so you can film actors interacting with the iPad or iPhone and replace the screen content later.

To make compositing in post-production easier, it provides solid colours with optional, high contrast, industry standard tracking markers, grid lines, and visual gestures. It's meant for creating demo videos, or for movie-style interface special effects.

chromakey is designed for all iPods, iPhones, and iPads.

FAQ & Tips

Q

What's this thing for?

A

chromakey is a green screen app designed to assist filmmakers and photographers when filming actors interacting with an iPad or iPhone as a prop. Much better than just a green piece of paper, chromakey gives you a variety of tracking markers, color choices, and on-screen taps and swipes to make compositing and matching the acting easier.

Please note that chromakey has no ability to remove green screen from photos or videos; separate photo or video editing software must be used.

Q

Does this work with images or video to key out the green and replace it with a different background?

A

No.

chromakey is the green screen itself only. You will need separate third-party image or video editing software to key out and replace the green.

Q

I don't want to shake my iPad to get back to the controls. Is there another way?

A

If the "Shake to Reset" feature is disabled or you don't want to shake the iPad, you can end the green screen mode by using the Home or Sleep buttons.

Shaking is the default way to get back to the controls because it is a gesture not likely to occur by accident while pretending to interact with the screen. Other gestures tested were too easy to accidentally trigger, which could potentially ruin a take if it's being filmed.

The four finger multitasking gestures (if your device supports them) can be used to exit back to the controls, but can also be accidentally triggered if enabled.

Q

How do I get chromakey to work with iMovie and camera?

A

chromakey is a green screen app only - it is not a video editor or recorder. It is meant to be used in a live environment, with the iPad or iPhone being recorded by an external camera. chromakey does not interact with the built-in camera in any way; nor is it able to import photos or videos. It simply turns the screen green (or another colour).

Q

Can you send me step-by-step instructions?

A

To begin the green screen mode, select what colour, marker layout, and marker type you would like by sliding the film strip selectors to the left or right.

If you would like to display tap indicators on the screen (so that animations can be synced with the acting) or disable the shake to end feature, there are toggles for each option just below the film strips. The defaults are recommended, however, because without the shake to end, you must press the Home or sleep buttons to end the green screen mode.

Once the desired options have been set, press the Go button and you should see the screen change to the selected color with any markers you selected. You are now ready to film your actor interacting with the device.

To return to using the device as normal, simply shake the device or press the home button.

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