primitive-icosphere

1.0.2 • Public • Published

primitive-icosphere

stable

demo

(demo)

A minimal icosphere geometry for 3D rendering, including normals, UVs and cell indices.

This uses icosphere under the hood, but includes some routines to reduce texture seams. However, at certain angles and subdivisions, the seams will still be visible.

The UV seam fixes have been adapted from UV Mapping a Sphere.

Example

var radius = 1
var mesh = require('primitive-icosphere')(radius, {
  subdivisions: 3
})
 
// the simplicial complex
console.log(mesh.positions, mesh.cells)
 
// rendering attributes
console.log(mesh.uvs)
console.log(mesh.normals)

Usage

NPM

mesh = sphere(radius, [opt])

Creates a new icosphere mesh with the given radius (default 1) and options:

  • subdivisions number of subdivisions, defaults to 2. Determines the mesh quality (recommended between 0 and 5)

The returned mesh is an object with the following data:

{
  positions: [ [x, y, z], [x, y, z], ... ],
  cells: [ [a, b, c], [a, b, c], ... ],
  uvs: [ [u, v], [u, v], ... ],
  normals: [ [x, y, z], [x, y, z], ... ]
}

License

MIT, see LICENSE.md for details.

/primitive-icosphere/

    Package Sidebar

    Install

    npm i primitive-icosphere

    Weekly Downloads

    6

    Version

    1.0.2

    License

    MIT

    Last publish

    Collaborators

    • mattdesl