OBS

8:41PMMarch 31 2025Daniel Tompkins

Archive KB streaming

OBS (Open Broad­caster Soft­ware) is a pow­erful tool for streaming. This page doc­u­ments some of the con­fig­u­ra­tion op­tions.

Fil­ters

Masks

To apply a mask to your video, first:

  • press the "+" under the "Sources" panel, then
  • se­lect "Video Cap­ture De­vice"

On the new video cap­ture de­vice, right-click and then click the "Fil­ters" op­tion on the pop-up menu.

Screenshot showing the resulting menu when right-clicking on a 'video capture device' in OBS. The 'Filters' option is one up from the bottom of the list.
  • Create a new filter under "Ef­fect Fil­ters" by pressing the "+" button.
  • Se­lect the "Image Mask/​Blend" filter op­tion.
  • Choose "Alpha Mask" for type, and se­lect an image from your com­puter.
Screenshot showing the OBS filters menu. An 'Image Mask/Blend' filter has been applied in the 'Effect Filters' section.
  • Set the color to #ffffff and choose the mask file from your com­puters under the "Path" config.

I'm using the fol­lowing .png for my mask file to create a cir­cular frame for my video while I'm recording my screen or live streaming.

The video mask filter file, a white circle with a black background at 16:9 aspect ratio.