coderef

SharedArrayBuffer in WebGLLimited availability

SharedArrayBuffer objects can be used in WebGL APIs that previously only worked with ArrayBuffer objects.

Not yet supported in all major browsers — check the table and provide a fallback.

How to use ↓Compare browsers

Browser support

DesktopChrome
1–59Not supported
60+Supportedsince Jul 25, 2017
Current: 155
Edge
12–18Not supported
79+Supportedsince Jan 15, 2020
Current: 154
Firefox
1–78Not supported
79+Supportedsince Jul 28, 2020
Current: 157
Safari
✕Not supportedup to 27
Current: 27
MobileChrome Android
18–59Not supported
60+Supportedsince Aug 1, 2017
Current: 155
Firefox Android
4–68Not supported
79+Supportedsince Jul 28, 2020
Current: 157
Safari iOS
✕Not supportedup to 27
Current: 27

How to use

Not supported in Safari, Safari iOS. Use feature detection below and provide a fallback (or a polyfill) for those browsers.

Example

Full syntax and examples are on MDN — see the links below.

Feature detection

JS · check before using
if ("WebGL2RenderingContext" in globalThis && "bufferData" in WebGL2RenderingContext.prototype) {
  // WebGL2RenderingContext.bufferData is available
}

Specification

Sub-features

Support for each part of the feature (32). The overall table above shows when the whole feature works.

Sub-featureChromeEdgeFirefoxSafariChrome AndroidFirefox AndroidSafari iOS
WebGL2RenderingContext.bufferData.srcData_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.bufferSubData.srcData_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.clearBufferfv.values_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.clearBufferiv.values_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.clearBufferuiv.values_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.compressedTexImage2D.pixels_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.compressedTexImage3D.pixels_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.compressedTexSubImage2D.srcData_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.getBufferSubData.dstData_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.readPixels.pixels_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.texImage3D.srcData_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.texSubImage3D.srcData_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.uniformMatrix2fv.value_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.uniformMatrix2x3fv.data_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.uniformMatrix2x4fv.data_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.uniformMatrix3fv.value_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.uniformMatrix3x2fv.data_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.uniformMatrix3x4fv.data_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.uniformMatrix4fv.value_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.uniformMatrix4x2fv.data_param_accepts_SharedArrayBuffer607979✕6079✕
Show 12 more
Sub-featureChromeEdgeFirefoxSafariChrome AndroidFirefox AndroidSafari iOS
WebGL2RenderingContext.uniformMatrix4x3fv.data_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.vertexAttrib1fv.value_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.vertexAttrib2fv.value_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.vertexAttrib3fv.value_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.vertexAttrib4fv.value_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.vertexAttribI4iv.value_param_accepts_SharedArrayBuffer607979✕6079✕
WebGL2RenderingContext.vertexAttribI4uiv.value_param_accepts_SharedArrayBuffer607979✕6079✕
WebGLRenderingContext.compressedTexImage2D.pixels_param_accepts_SharedArrayBuffer607979✕6079✕
WebGLRenderingContext.vertexAttrib1fv.value_param_accepts_SharedArrayBuffer607979✕6079✕
WebGLRenderingContext.vertexAttrib2fv.value_param_accepts_SharedArrayBuffer607979✕6079✕
WebGLRenderingContext.vertexAttrib3fv.value_param_accepts_SharedArrayBuffer607979✕6079✕
WebGLRenderingContext.vertexAttrib4fv.value_param_accepts_SharedArrayBuffer607979✕6079✕