Chemistry · interface

AppearanceModel

§17's three numbers: what a material looks like before it burns, after it burns, and how dirty its smoke is on the way.

Explained in Chemistry.

interface AppearanceModel

import type { AppearanceModel } from '@driftengine/chemistry';

In depth

Soot yield belongs on the substance and §8.4 says why: polystyrene sooting heavily and methanol burning invisibly are the two ends of a scale, and which end a fuel sits at is a property of the fuel. It is the one number that decides whether a fire is seen at all in daylight.

Properties

Name	Type	Description
`albedo`readonly	`readonly [number, number, number]`	Linear RGB before anything happens to it.
`charAlbedo`readonly	`readonly [number, number, number]`	Linear RGB when it is entirely char. Near-black for anything that chars at all.
`sootYield`readonly	`number`	kg of soot per kg of volatiles burnt. Wood is about 0.015; polystyrene is 0.16.