🧵 Fabric Presets#

The add-on includes a set of ready-to-use fabric presets for Shell groups, each calibrated against real textile measurements so it drapes, bends, and stretches like the named fabric:

  • Silk and Flag (lightweight banner cloth): light and very drapey.

  • Cotton and Wool: medium stiffness and drape.

  • Denim: stiff and the least drapey of the set, so it holds its shape.

  • Leather: heavy and barely stretchy, but it drapes with the medium fabrics and droops further than either of them.

Solid presets#

Solid groups get their own list in the same Preset dropdown — the menu is filtered by the group’s Type, so a Solid group never sees the fabrics and a Shell group never sees these:

  • Rubber: vulcanized rubber (real E ~3 MPa), near-incompressible and grippy (friction 0.85).

  • Silicone: silicone elastomer / PDMS (~2 MPa), very soft and near-incompressible.

  • Foam: flexible polyurethane foam (~50 kPa), light and springy.

  • Sponge: dry cellulose sponge (~0.3 MPa), soft and porous.

  • Jelly: gelatin / ballistic gel (~150 kPa), very soft, wobbly and slippery (friction 0.10).

Unlike the fabrics, these are not calibrated by simulation: each carries the real material’s Young’s modulus, entered density-normalized (the real E divided by the real density), which is the form the solver consumes. Their Density ships at a uniform 100 kg/m³, deliberately — density only affects inertia and contact, not the static deformed shape, so a uniform value avoids the mass-ratio conditioning problems that real volumetric densities cause in mixed-material scenes. Change it freely.

Applying a preset never changes the group’s Type, and a row with its padlock engaged keeps its current value.

Calibration report#

The report linked below shows, for every fabric, how it behaves in standard fabric tests, rendered from simulations:

  • a drape over a disc (how far it collapses into folds),

  • a cantilever bend (how far a held strip droops under its own weight), and

  • its stretch parameters (how easily it pulls in its plane: Silk and Wool stretch more easily than Denim and Leather).

Open the fabric calibration report »

Note

The report opens as a standalone page. Each fabric is shown with a top-down and an angled view of its drape, a side view of its cantilever bend, and a summary table of its parameters. The drape values follow the standard Cusick drape test; the bending follows the ASTM D1388 cantilever test.