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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

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

// program is a linked WebGLProgram

gl.getFragDataLocation(program, "fragColor");

Specifications

Specification
WebGL 2.0 Specification> # 3.7.7>

Browser compatibility

	Desktop					Mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	WebView on iOS
`getFragDataLocation`	56	79	51	43	15	58	51	43	15	7.0	58	15