See Marvelous Designer[1] and CLO[2]. These are CAD programs for designing clothes. They make both a 3D model for viewing and patterns for cutting and sewing. When design moves to CAD, the designer already has a 3D model before the clothing is made. So, for catalog photos, there's no need for human models.
Mostly. Those two companies need better hair shaders.
See Marvelous Designer[1] and CLO[2]. These are CAD programs for designing clothes. They make both a 3D model for viewing and patterns for cutting and sewing. When design moves to CAD, the designer already has a 3D model before the clothing is made. So, for catalog photos, there's no need for human models.
Mostly. Those two companies need better hair shaders.
[1] https://marvelousdesigner.com/
[2] https://www.clo3d.com