Geometry · function

shellFillMatrix

A uniform scale about a height, for drawing a skin just inside the model it came from.

Explained in Hello world, Meshes and geometry.

function shellFillMatrix(scale: number, centreY: number, out: Float32Array): Float32Array

import { shellFillMatrix } from '@driftengine/core';

Parameters

Parameter	Type	Description
`scale`	`number`
`centreY`	`number`
`out`	`Float32Array`

In depth

The translation column is what keeps the shrink centred on the model rather than on the world origin: scaling about zero would drop it through whatever it stands on by a fraction of its own height, which is small enough to look like a shadow fault rather than like this.