WebGL2RenderingContext: getFragDataLocation() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.

Note: This feature is available in Web Workers.

The WebGL2RenderingContext.getFragDataLocation() method of the WebGL 2 API returns the binding of color numbers to user-defined varying out variables.

Syntax

js
getFragDataLocation(program, name)

Parameters

program

A WebGLProgram to query.

name

A string specifying the name of the user-defined varying out variable.

Return value

A GLint indicating the assigned color number binding, or -1 otherwise.

Examples

js
// program is a linked WebGLProgram

gl.getFragDataLocation(program, "fragColor");

Specifications

Specification
WebGL 2.0 Specification
# 3.7.7

Browser compatibility

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desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
getFragDataLocation

Legend

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Full support
Full support

See also