@monogrid/gainmap-js / decode / GainMapLoader

Class: GainMapLoader

Defined in: src/decode/loaders/GainMapLoader.ts:58

A Three.js Loader for the gain map format.

Example

import { GainMapLoader } from '@monogrid/gainmap-js'
import {
  EquirectangularReflectionMapping,
  LinearFilter,
  Mesh,
  MeshBasicMaterial,
  PerspectiveCamera,
  PlaneGeometry,
  Scene,
  WebGLRenderer
} from 'three'

const renderer = new WebGLRenderer()

const loader = new GainMapLoader(renderer)

const result = await loader.loadAsync(['sdr.jpeg', 'gainmap.jpeg', 'metadata.json'])
// `result` can be used to populate a Texture

const scene = new Scene()
const mesh = new Mesh(
  new PlaneGeometry(),
  new MeshBasicMaterial({ map: result.renderTarget.texture })
)
scene.add(mesh)
renderer.render(scene, new PerspectiveCamera())

// Starting from three.js r159
// `result.renderTarget.texture` can
// also be used as Equirectangular scene background
//
// it was previously needed to convert it
// to a DataTexture with `result.toDataTexture()`
scene.background = result.renderTarget.texture
scene.background.mapping = EquirectangularReflectionMapping

// result must be manually disposed
// when you are done using it
result.dispose()

Extends

• LoaderBase<[string, string, string]>

Constructors

Constructor

new GainMapLoader(renderer?, manager?): GainMapLoader

Defined in: src/decode/loaders/LoaderBase.ts:34

Parameters

renderer?

WebGLRenderer

manager?

LoadingManager

Returns

GainMapLoader

Inherited from

LoaderBase<[string, string, string]>.constructor

Methods

load()

load(urls, onLoad?, onProgress?, onError?): QuadRenderer<1016, GainMapDecoderMaterial>

Defined in: src/decode/loaders/GainMapLoader.ts:73

Loads a gainmap using separate data

• sdr image
• gain map image
• metadata json

useful for webp gain maps

Parameters

urls

[string, string, string]

An array in the form of [sdr.jpg, gainmap.jpg, metadata.json]

onLoad?

(data) => void

Load complete callback, will receive the result

onProgress?

(event) => void

Progress callback, will receive a ProgressEvent

onError?

(err) => void

Error callback

Returns

QuadRenderer<1016, GainMapDecoderMaterial>

Overrides

LoaderBase.load

---

setRenderer()

setRenderer(renderer): GainMapLoader

Defined in: src/decode/loaders/LoaderBase.ts:46

Specify the renderer to use when rendering the gain map

Parameters

renderer

WebGLRenderer

Returns

GainMapLoader

Inherited from

LoaderBase.setRenderer

---

setRenderTargetOptions()

setRenderTargetOptions(options): GainMapLoader

Defined in: src/decode/loaders/LoaderBase.ts:57

Specify the renderTarget options to use when rendering the gain map

Parameters

options

QuadRendererTextureOptions

Returns

GainMapLoader

Inherited from

LoaderBase.setRenderTargetOptions