The moderators make sure that you never run into fake webcams.This makes sure that you never get trolled or blackmailed.Click "Allow." (You may only have to do this the first time you use Web RTC).Note that you can click the little camera icon located in the far-right of your address bar to change the settings of what camera/microphone is being used.When you start or join the Video Chat, you'll see your Video Chat bubble pop up.
For more info, see Change camera settings in Camera app and webcams help.
Adjust the focus The rear-facing camera Surface devices has an autofocus lens that can help improve the sharpness of your photos and videos.
The lens automatically focuses on the main subject on the screen, but you can change the focus to a different area before taking a picture or while recording a video.
Once at least two people log into a game using any Broadcast options beyond None, you should see a dialog box along the top of your screen that asks you to give permission for Roll20 to use your camera/microphone.
In Google Chrome: A dialog box will appear along the very top of your browser screen.