Product Comparison

Feature	Small Stella	Great Stella	Stella4D
Polyhedra included
Platonic solids
Archimedean solids
Kepler-Poinsot
Prisms/antiprisms	Convex only
All other uniform polyhedra
Johnson solids
"Near misses" (almost Johnson solids)
Stewart toroids
Compounds	A few	Over 100	Over 100, plus some 4D compounds
Geodesic domes
Pyramids, cupolae, cuploids, cupolaic-blends
Brückner's 1906 polyhedra
Waterman polyhedra
All 1849 known uniform polychora
Uniform duoprisms and antiduoprisms
Various 4D uniform fissaries and scaliforms
Polyhedral nets (for making paper models)
Print nets
Scale nets by setting model radius/edge length/etc
Multiple nets arranged on each page
Group nets by color (optional)
Manual tweaking of nets
Design additional internal parts for increased robustness
View nets folding/unfolding in real-time
Export net measurements for alternative construction (e.g. wood)
3D nets of 4D polytopes (1, 2)
Polyhedral tools
Duality (spherical reciprocation)			Yes, 3D and 4D
Compound with dual	Yes, but no nets		Yes, 3D and 4D
Morph between duals in real-time (6 methods) (1, 2, 3, 4)	Yes, but no nets
Animated 2D slices of 3D polyhedra (1, 2, 3, 4, 5, 6)
Step through slice depths that hit vertices
Measure distance between vertices			Yes, 3D and 4D
Faceting (examples, description)
Augmentation/excavation/drilling (glue polyhedra together)
Blend two polyhedra
Convex hulls and cores			Yes, 3D and 4D
Zonohedrify (create zonohedron from other polyhedron)
Geodesic spheres based on any other polyhedron
Choose subsymmetry (affects coloring, stellation etc)
Delete/keep one part of compound			Yes, 3D and 4D
Multi-level undo/redo
Stellation
Stellation of polyhedra (examples, description)
Various stellation criteria (Miller's rules, fully supported, mainline etc)
Step through stellations, or choose cells manually
2D stellation diagrams
Stellation diagrams attached to 3D polyhedron
Cell diagrams (tree structure of stellation cells)
Stellation of arbitrary set of planes
4D-specific tools
View 3D projections of 4D polytopes (orthogonal or perspective) (1, 2)
Rotate polytopes in 4D
Animated 3D slices of 4D polytopes (both convex and nonconvex)
View 3D nets of polychora (1, 2)
Manually rearrange cells in nets
View 3D vertex figures of polychora
View 3D cells of polychora
Truncate, rectify, and expand polychora
Convex hulls and cores of polychora
Build 4D prisms from 3D polyhedra
Decorative tools
Comprehensive choices for face coloring
Put images/photos on faces
Interactive control of image position/rotation/scale
Images included in printed nets (1, 2, 3)
Display tools
Stereoscopic 3D display (with red/blue glasses or cross-eyed/wall-eyed pair)
Spheres at vertices/cylinders along edges
Hide some faces
Display rotational symmeties
Display reflective symmeties
Display vertex figures
Merge colors of overlapping coplanar faces
Information window
Shows alternative names
Shows Wenninger index & page number
Shows Wythoff symbol
Shows number of faces/edges/vertices
Shows number of parts in compound
Shows genus, density, volume
Number of parts in nets
Number of edges to cut/fold/glue in nets
Stellation info
Input/Output
Export anti-aliased 2D images in various formats
Import 3D polyhedra from OFF format
Import 4D polytopes from OFF format
Export 3D polyhedra to DXF format
Export 3D polyhedra to POV-Ray format
Export 3D polyhedra to VRML format
Export 3D polyhedra to OBJ format
Export 3D polyhedra to OFF format
Prices
Free demo
Single user license	$22	$65	$99
School license	$75	$219	$329
University license	$125	$359	$545

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