Built-in Geometries

@luma.gl/engine exports several ready-made geometry classes. All of them extend Geometry and populate standard attributes such as POSITION, NORMAL, and TEXCOORD_0.

Overview

Class	Notes
ConeGeometry	Cone with optional caps.
CubeGeometry	Unit cube geometry.
CylinderGeometry	Cylinder built on top of TruncatedConeGeometry.
IcoSphereGeometry	Icosahedron-based sphere approximation.
PlaneGeometry	Grid plane in x,y, x,z, or y,z.
SphereGeometry	Latitude/longitude sphere.
TruncatedConeGeometry	Generalized cone or frustum primitive.

Common Pattern

import {SphereGeometry} from '@luma.gl/engine';

const geometry = new SphereGeometry({radius: 2});

Selected Constructor Props

ConeGeometry

• radius?
• cap?
• Inherits radial, vertical, height, and axis options from TruncatedConeGeometry

CylinderGeometry

• radius?
• Inherits cap, radial, vertical, height, and axis options from TruncatedConeGeometry

TruncatedConeGeometry

• topRadius?
• bottomRadius?
• topCap?
• bottomCap?
• height?
• nradial?
• nvertical?
• verticalAxis?

PlaneGeometry

• type?
• xlen?, ylen?, zlen?
• nx?, ny?, nz?
• offset?

SphereGeometry

• radius?
• nlat?
• nlong?

IcoSphereGeometry

• iterations?

Remarks

• These classes are convenience wrappers around typed-array geometry generation.
• When you need to upload those attributes into GPU buffers, use them directly with Model or convert them through GPUGeometry.