GeometryFactory is a set of pure functions that create BufferGeometry instances from a GeometryConfig. It supports six primitives plus extrusion from SVG paths. Every mesh it creates has castShadow and receiveShadow set to true.

Box

Parameter	Default	Range	Description
width	1	> 0	Width along X
height	1	> 0	Height along Y
depth	1	> 0	Depth along Z
widthSegments	1	1-10	Subdivisions along width
heightSegments	1	1-10	Subdivisions along height
depthSegments	1	1-10	Subdivisions along depth

Sphere

Parameter	Default	Range	Description
radius	0.5	> 0	Sphere radius
widthSegments / segments	32	3-64	Horizontal segments. Higher is smoother
heightSegments	half of widthSegments	2-32	Vertical segments

Height segments default to Math.max(2, Math.round(widthSegments / 2)) when not specified.

Cylinder

Parameter	Default	Range	Description
radiusTop	0.5	>= 0	Top circle radius. Set to 0 for a cone shape
radiusBottom	0.5	>= 0	Bottom circle radius
height	1	> 0	Height along Y
radialSegments / segments	16	3-64	Faces around the circumference

Cone

Parameter	Default	Range	Description
radius	0.5	> 0	Base circle radius
height	1	> 0	Height from base to apex
radialSegments / segments	16	3-64	Faces around the circumference

Torus

Parameter	Default	Range	Description
radius	0.5	> 0	Distance from torus center to tube center
tubeRadius	0.2	> 0	Radius of the tube cross-section
radialSegments	16	3-32	Segments around the tube cross-section
tubularSegments / segments	100	3-200	Segments around the ring

Capsule

Parameter	Default	Range	Description
radius	0.5	> 0	Radius of the capsule
height	1	> 0	Length of the middle cylindrical section
radialSegments / segments	16	3-64	Segments around the circumference

Cap segments are hardcoded to 8.

Extrusion from SVG Shapes

extrudeFromShapes() takes an array of THREE.Shape objects parsed from SVG paths and creates an ExtrudeGeometry, centered after creation.

Parameter	Default	Range	Description
extrudeDepth	0.5	0.01-5	How far the shape is extruded along Z
bevelEnabled	true	—	Whether to add beveled edges
bevelThickness	0.05	0-0.5	How deep the bevel cuts into the shape
bevelSize	0.03	0-0.5	How far the bevel extends outward
bevelSegments	3	1-8	Smoothness of the bevel curve

At bevelSegments: 1 the bevel is a simple chamfer; at higher values it becomes a smooth curve.