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Three Steam Audio Docs

Materials

Three Steam Audio ships with a small set of frozen acoustic material presets. All absorption and transmission values are three-band [low, mid, high] arrays, and scattering is a single value in [0, 1].

Materials.concrete

Section titled “Materials.concrete”
{
  absorption: [0.10, 0.05, 0.02],
  scattering: 0.05,
}

Materials.generic

Section titled “Materials.generic”
{
  absorption: [0.10, 0.20, 0.30],
  scattering: 0.05,
}

Materials.glass

Section titled “Materials.glass”
{
  absorption: [0.13, 0.20, 0.24],
  scattering: 0.05,
  transmission: [0.06, 0.03, 0.02],
}

Materials.metal

Section titled “Materials.metal”
{
  absorption: [0.20, 0.07, 0.06],
  scattering: 0.05,
  transmission: [0.03, 0.02, 0.01],
}

Materials.wood

Section titled “Materials.wood”
{
  absorption: [0.11, 0.07, 0.06],
  scattering: 0.05,
}

Custom materials

Section titled “Custom materials”

You can define your own materials:

import { 
const Materials: Readonly<{
    concrete: AcousticMaterial;
    generic: AcousticMaterial;
    glass: AcousticMaterial;
    metal: AcousticMaterial;
    wood: AcousticMaterial;
}>
Materials } from 'three-steam-audio'


const 
const carpet: {
    readonly absorption: readonly [0.3, 0.45, 0.6];
    readonly scattering: 0.2;
    readonly transmission: readonly [0.1, 0.05, 0.02];
}
carpet = {
  
absorption: readonly [0.3, 0.45, 0.6]
absorption: [0.30, 0.45, 0.60],
  
scattering: 0.2
scattering: 0.20,
  
transmission: readonly [0.1, 0.05, 0.02]
transmission: [0.10, 0.05, 0.02],
} as 
type const = {
    readonly absorption: readonly [0.3, 0.45, 0.6];
    readonly scattering: 0.2;
    readonly transmission: readonly [0.1, 0.05, 0.02];
}
const


const 
const combined: (AcousticMaterial | {
    readonly absorption: readonly [0.3, 0.45, 0.6];
    readonly scattering: 0.2;
    readonly transmission: readonly [0.1, 0.05, 0.02];
})[]
combined = [
const Materials: Readonly<{
    concrete: AcousticMaterial;
    generic: AcousticMaterial;
    glass: AcousticMaterial;
    metal: AcousticMaterial;
    wood: AcousticMaterial;
}>
Materials.
concrete: AcousticMaterial
concrete, 
const carpet: {
    readonly absorption: readonly [0.3, 0.45, 0.6];
    readonly scattering: 0.2;
    readonly transmission: readonly [0.1, 0.05, 0.02];
}
carpet]

See AcousticMaterial for the full interface.