The photo frames provided for the project for this chapter are shown here:
The frames are 3D models, created in Blender. They default to 1 x 1 units square, and we rescale them in Unity for placement in the scene and to fit the images' aspect ratio.
Blender is an open source 3D creation tool for modelling, texturing, animation, and more. We recommend exporting Blender models to FBX format when importing them into Unity. See https://www.blender.org/ for more information.