Have you ever needed to zoom in on your screen to show some fine detail work, or to make your large 4k/ultrawide monitor appear less daunting on stream? Zoom and Follow for OBS Studio does exactly that, zooms in on your mouse and follows it around. Configurable and low-impact, you can now do old school Camtasia zoom live!
Maintained for the current release version of OBS
Built using Python 3.10
Inspired by caharkness's Magic Window
Last updated: 2023 April 16
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Install Python 3
Make sure that you configure the correct version of Python within OBS in the "Scripts" window > "Python Settings" tab
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Install PyWinCtl
Be sure to install to the Python version that OBS is using.
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Add
zoom_and_follow_mouse.pyas an OBS script
Note: I will not provide support on how to install Python or any dependencies as each system and platform is different and I am only set up to test on the current versions of Windows 11 and macOS.
- In the "Tools > Scripts" Menu of OBS
- Select a source to zoom into as part of the script settings
- Configure the size of the zoom window
- Change any of the other settings to adjust the zoom and follow behavior (Optional)
- In the "Settings > Hotkeys" Menu of OBS
- Setup a hotkey for Enable/Disable Mouse Zoom
- Setup a hotkey for Enable/Disable Mouse Follow
- In the "Edit Transform" menu for the source:
- Set the "Bounding Box Type" to Scale to inner bounds
- Set the "Bounding Box Size" to the size you want on the canvas when zoomed out
- Use Zoom hotkey to zoom in and out of the source
- Optionally, use the Follow hotkey to toggle mouse tracking
Duplicate and rename zoom_and_follow_mouse.py, and repeat the Install and How to Use sections with the duplicate copy.
- Automatically setup transform bounding box
- Only track windows/games when they are the active window
- Further reduce CPU Usage in non-Windows systems