MattePainter is an extension of the Import-Images-As-Planes workflow. It helps you perform In-Scene Photobashing within the Blender 3D Viewport.

It simplifies and improves the compositing pipeline by allowing you to create simple Matte Paintings directly inside the 3D Viewport, without needing to export the scene to a third-party app like Nuke or Photoshop.

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Tested in Blender versions 3.0 - 4.1.