RingGeometry

RingGeometry ⟵ BufferGeometry

A geometry class for a two dimensional ring with given inner and outer radii.
RingGeometry creates a ring geometry that is centered on the origin, lying in the XZ plane (Y = 0). The ring is constructed from segments and can be used to create donut shapes.

Methods

RingGeometry(f32 innerRadius, f32 outerRadius, u32 thetaSegments, u32 phiSegments, f32 thetaStart, f32 thetaLength, const Color& color)

Universal constructor - covers all cases with smart defaults

innerRadius	Inner radius of the ring	0.5f
outerRadius	Outer radius of the ring	1.0f
thetaSegments	Number of segments around circumference	32
phiSegments	Number of segments per ring segment	1
thetaStart	Start angle for first segment in radians	0.0f
thetaLength	Central angle of circular sector in radians	2π
color	RGBA color for all vertices	0xFFFFFFFF

RingGeometry* clone(bool recursive = false) const

Creates a copy of this geometry

recursive

Whether to clone descendants as well

void copy(const RingGeometry& geometry)

Copies properties from another geometry

geometry

Source geometry to copy from

void buildRing()

Builds the ring geometry with vertices, indices, and colors

Properties

color	Color	RGBA color for all vertices
innerRadius	f32	Inner radius of the ring
outerRadius	f32	Outer radius of the ring
phiSegments	u32	Number of segments per ring segment
thetaLength	f32	Central angle in radians
thetaSegments	u32	Number of segments around circumference
thetaStart	f32	Start angle in radians