OffscreenCanvas (in supporting browsers)

E869119
HTML Canvas API feature Web API interface

OffscreenCanvas (in supporting browsers) is a web API that lets you create and render to canvas elements off the main UI thread, improving performance for graphics-intensive or background drawing tasks.

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Observed surface forms (2)

Surface form Occurrences
OffscreenCanvas API 1
OffscreenCanvas 0

Statements (48)

Predicate Object
instanceOf HTML Canvas API feature ⓘ
Web API interface ⓘ
allows parallel processing of drawing operations ⓘ
rendering without blocking main UI thread ⓘ
transfer of control from HTMLCanvasElement ⓘ
availableIn supporting browsers ⓘ
benefit enables heavy rendering in workers ⓘ
enables smoother animations ⓘ
reduces jank in main thread ⓘ
canBeCreatedBy new OffscreenCanvas(width, height) ⓘ
canBeObtainedFrom HTMLCanvasElement.transferControlToOffscreen() ⓘ
canBeUsedIn DedicatedWorker ⓘ
ServiceWorker (with limitations) ⓘ
SharedWorker ⓘ
Window context ⓘ
Worker context ⓘ
definedInSpecification HTML Living Standard NERFINISHED ⓘ
WHATWG HTML specification NERFINISHED ⓘ
executionContext JavaScript NERFINISHED ⓘ
hasMethod convertToBlob() ⓘ
getContext() ⓘ
transferToImageBitmap() ⓘ
hasProperty height ⓘ
oncontextlost ⓘ
oncontextrestored ⓘ
width ⓘ
improves UI responsiveness ⓘ
rendering performance ⓘ
introducedTo enable canvas rendering in Web Workers ⓘ
primaryUse background drawing tasks ⓘ
graphics-intensive drawing ⓘ
off-main-thread canvas rendering ⓘ
relatedTo CanvasRenderingContext2D NERFINISHED ⓘ
HTMLCanvasElement NERFINISHED ⓘ
ImageBitmap ⓘ
WebGL2RenderingContext NERFINISHED ⓘ
WebGLRenderingContext NERFINISHED ⓘ
requires browser support for OffscreenCanvas interface ⓘ
supports 2D rendering context ⓘ
ImageBitmapRenderingContext NERFINISHED ⓘ
WebGL rendering context ⓘ
WebGL2 rendering context ⓘ
supportsUseCase data visualization ⓘ
game rendering ⓘ
image processing ⓘ
offscreen compositing ⓘ
video frame processing ⓘ
threadModel multi-threaded via workers ⓘ

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

canvas 2D API → supportsOffscreen → OffscreenCanvas (in supporting browsers) ⓘ
subject surface form: Canvas 2D API
Chrome Web Platform features → includesAPI → OffscreenCanvas (in supporting browsers) ⓘ
this entity surface form: OffscreenCanvas API