Snapchat is a Camera to Continue Youll Need to Allow Camera Access in Settings

Open Settings

To open the Snap Camera settings, select the Settings icon in the top right corner of Snap Camera.

Selecting Webcam

If you have multiple webcams connected to your computer, you can select the webcam you want Snap Camera to use. Select the camera in the Choose Your Camera dropdown.

Setting Webcam Resolution

If you would like to modify the resolution or frame rate of your web camera, you can do it in Settings. For best quality and performance please make sure that resolution and FPS settings in Snap Camera match those in OBS or your other app of choice.

Please note that this feature is available only on Windows for now.

Flip Video Preview

The output of Snap Camera is not-mirrored for the best viewer experience. For the Snap Camera preview, we flip the video preview so it behaves like a mirror. Disable the Flip Video Preview toggle to preview exactly how viewers will see the non-mirrored output.

Note
By default, Flip Video Preview is enabled so that it behaves like you are looking into a mirror. Because of this, text found in Lenses will appear mirrored as well in the preview. That said, since the output video is not flipped, the text will appear correctly to viewers. You can always disable Flip Video Preview to see the non-flipped output video

Snapcode Overlay

Any Lens you use in Snap Camera can be unlocked by scanning the Lens Snapcode. You can easily share the Snapcode of the Lens your are using to your viewers by enabling Show Snapcode Overlay.

For more information on unlocking Lenses via Snapcode, check out the Unlocking Lenses guide.

Configure Trigger Hotkeys

The following hotkeys can be configured in the Snap Camera settings.

Turn Lens On / Off

The Turn Lens On / Off feature will toggle if the Snap Camera Lens is active. This allows you to easily switch between using a Lens and not mid stream. To assign a hotkey, click the Add Hotkey button, input the hotkey and then click Save.

Trigger Lens Effect

The Trigger Lens Effect feature will trigger an interaction in the selected Lens if supported. Lenses that utilize a full screen tap can be triggered with this hotkey. To assign a hotkey, click the Add Hotkey button, input the hotkey and then click Save.

Configure Favorite Hotkeys

Favorited Lenses can be bound to hotkeys. This allows you to easily enable your favorite Lenses mid stream. To configure your favorite Lens hotkeys, first click the Favorite button in the top left corner of Snap Camera.

Then, click the Favorite Hotkeys button in the top right of the Favorites section.

Next, you'll be able to configure hotkeys for each of your favorite Lens. When the hotkey is triggered, the favorite Lens will be activated. To assign a hotkey, click theAdd Hotkey button, input the hotkey and then clickSave.

Cache and App Use

You can adjust the cache size Snap Camera uses and also clear history by clicking the View button underneath Cache & App Use.

Once selected, you'll be able to configure the cache and history.

• Set Cache Size- The amount of hard disk space dedicated to storing Lenses. Lenses are cached so they don't have to be re-downloaded. The more space you dedicate to caching Lenses, the less likely you'll have to re-download a previously selected Lens. Reduce the cache size if you want to limit the hard drive foot print of Snap Camera
• Clear History, Lens History -This will clear the history saved of your recently selected Lenses
• Clear History, Favorite Lenses- This will clear all of your favorited Lenses from your favorites list
• Clear History, Cache- This will clear out all Lenses downloaded and cached on your hard drive

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Source: https://snapcamera.snapchat.com/guides/settings/