Simple Resize
Round a layer's corners, and switch its size, without the frame getting smaller each time.
One frame.
Press 16:9, 9:16, 1:1, 4:5, or 1.91:1. The next size fits inside the frame you started with. It does not shrink inside the last crop. Drag the layer to a new size, or press Reset, and that becomes the frame.
Corners on the picture you see.
The round sits on the crop in front of you. A corner that is too big for a small crop waits, and comes back when the frame is big enough. The crop stays centered. One source shares its corners across every scene that uses it.
The dock.
Open Tools, then Simple Resize. Click the layer. Drag a dot to round all four corners. Hold Alt to round one corner. Circle makes a circle.
Windows. OBS 32.
Free. This build is Windows. The email sends the plugin and the source. The plugin is GPL-2.0.
- Install. Unzip the Windows file. Copy the simple-resize folder to C:\ProgramData\obs-studio\plugins. Restart OBS.
- Open it. Tools, then Simple Resize. It is also at the bottom of Docks.