WebGL2RenderingContext.getFragDataLocation()

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

Syntax

GLint gl.getFragDataLocation(program, name);

Parameters

program
A WebGLProgram to query.
name
A DOMString 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 Status Comment
WebGL 2.0
The definition of 'getFragDataLocation' in that specification.
Editor's Draft Initial definition.
OpenGL ES 3.0
The definition of 'glGetFragDataLocation' in that specification.
Standard Man page of the (similar) OpenGL API.

Browser compatibility

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See also