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# Built-in Geometry Types

Basic shapes—such as spheres, boxes, and planes—and features for generating 3D objects from 2D text and Bézier curves.

## Topics

### Parametric Geometry

[`SCNText`](/documentation/SceneKit/SCNText)

A geometry based on a string of text, optionally extruded to create a three-dimensional object.

[`SCNShape`](/documentation/SceneKit/SCNShape)

A geometry based on a two-dimensional path, optionally extruded to create a three-dimensional object.

### Basic Shapes

[`SCNFloor`](/documentation/SceneKit/SCNFloor)

A plane that can optionally display a reflection of the scene above it.

[`SCNBox`](/documentation/SceneKit/SCNBox)

A six-sided polyhedron geometry whose faces are all rectangles, optionally with rounded edges and corners.

[`SCNCapsule`](/documentation/SceneKit/SCNCapsule)

A right circular cylinder geometry whose ends are capped with hemispheres.

[`SCNCone`](/documentation/SceneKit/SCNCone)

A right circular cone or frustum geometry.

[`SCNCylinder`](/documentation/SceneKit/SCNCylinder)

A right circular cylinder geometry.

[`SCNPlane`](/documentation/SceneKit/SCNPlane)

A rectangular, one-sided plane geometry of specified width and height.

[`SCNPyramid`](/documentation/SceneKit/SCNPyramid)

A right rectangular pyramid geometry.

[`SCNSphere`](/documentation/SceneKit/SCNSphere)

A sphere (or ball or globe) geometry.

[`SCNTorus`](/documentation/SceneKit/SCNTorus)

A torus, or ring-shaped geometry.

[`SCNTube`](/documentation/SceneKit/SCNTube)

A tube or pipe geometry—a right circular cylinder with a circular hole along its central axis.


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