JarCastingquad-indices
Creates the indices for a quad mesh (two triangles), ideal for sprites, 2D lines, font glyphs, billboards, and other features.
var createIndices = require('quad-indices')
//basic usage:
var quad = createIndices()
// --> new Uint16Array([0, 1, 2, 0, 2, 3])
//N quads, array type:
var quad = createIndices({ count: 2, type: 'array' })
// --> [0, 1, 2, 0, 2, 3, 4, 5, 6, 4, 6, 7]
//counter-clockwise
var quad = createIndices({ clockwise: false })
// --> new Uint16Array([0, 1, 2, 2, 1, 3])
//store in existing array
var array = new Uint16Array(12)
createIndices(array, { start: 6 })
// --> new Uint16Array([0, 0, 0, 0, 0, 0, 0, 1, 2, 0, 2, 3])
Usage
quad = createIndices([array], [opt])
Creates the indices for a quad mesh. Both parameters are optional.
If array is provided and is a Buffer or array-like object, it will be used as output instead of creating a new object.
Possible options:
countthe number of quads to index, default 1type(string) the dtype of the returned array, default '"uint16"'clockwise(boolean) the orientation of the indices, default truestartthe starting index to place the data into the array, default 0
License
MIT, see LICENSE.md for details.
