I have a ceiling in my house I want to decorate. The goal is to place fabric on it and allow it to drape so that it falls nicely into a sort of organic shape.

I attached an image but in this case the space is MUCH smaller, triangular, and won't have a skylight in the center.

I am hoping that CAD can help me figure out what shape to cut out of the fabric so that it drapes how I like it or at least be able to sort of verify designs for that cut. Since its triangular I dont have a good sense of how much extra fabric I need to leave so it drapes nicely.

The basic question is do I cut a triangle? Do I cut some sort of irregular shape? Should my edges be curved or straight? I dont know what discipline of design/engineering this is so I have no idea how to figure this out other than experimentation.

I am fairly good at the basics of Fusion360 and 3D software. I just dont know if this is something I should expect to be able to use Fusion360 for.

https://preview.redd.it/4h5n8x67kt0d1.png?width=808&format=png&auto=webp&s=f27269882de1ca9bc703eec9d52fcd8fb9b663e0