Perfect beautiful curly shapes


Spiros is a 3dsMax plugin for creating beautiful spirals, helices and torus knot splines, with mathematical precision.

Make ornaments, decorations, ironwork designs, jewelry, cloth accessories, symbols from ancient cultures, tentacles, paths for animation / distribution / deformation, and a lot more.

This tool is ideal for prop modelers, hard surface modelers, architects, designers, engineers, CG animators and Motion Graphics artists.

Spiros is a commercial script for 3dsMax 2012 and higher.


  • Precise custom algorithms to create parametric spirals, helices, torus knots and curls.
  • Intuitive user-friendly UI.
  • Spiral: arithmetic spiral, golden spiral, logarithmic, parabolic, hyperbolic.
    Control the no. of turns, width, amount of knots, growth factor, height, bias, CW/CCW, curve/linear segments. Symmetry option.
  • Helix: standard helix, spherical helix, loxodrome, toroidal helix.
    Control the no. of turns, start/end radius, amount of knots, height, bias, CW/CCW, curve/linear segments. Symmetry option.
  •  Torus Knot: thousands of variants, easy to visualize and modify.
    Control no. of foils, variant type, flower/ring shape, radius, amount of knots,  CW/CCW, curve/linear segments.
  •  Curl: create a simple curl that behaves like a hair or tentacle, always keeping its length, by parametrically bending and curling a straight line.
    Controls: spline lenght, bend, curl, amount of knots, height, bias, CW/CCW, curve/linear segments.
  • Create square spirals, triangular spirals and other special shapes with linear segments.
  • Axial symmetry control allows you to create gorgeous spiral and helical ornaments and decorations.
  • Spiros produces standard 3dsmax Editable Splines, easy to modify.
  • No plugin-dependency. Compatible with all render engines.

More Info

Check out the Image Gallery, Tutorials and Plugin’s Manual for examples and further information.

3dsMax version required: 2012 or higher.

Last update: June 15, 2021


Purchase a Spiros license
Spiros v1.08