The archive includes:
Fits perfectly into the interior. Also, the material of this curtain can be used with other curtain models from my profile.
The color of the gradient can be easily changed.
The curtain in this state is 955 and 970 cm wide.
Polygons 60 505, Vertices 61 073.
Bathtub from preview: https://www.cgtrader.com/3d-models/interior/bathroom/acrylic-bathtub-pool-spa-windsor-180x85-cm
Used as references:Bath screen IKEA NYCKELN 180x200 cm
Who works in V-Ray version lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR (GGX), if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - which is preferable for you