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
WebGLProgramto 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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See also
WebGLRenderingContext.createProgram()WebGLRenderingContext.deleteProgram()WebGLRenderingContext.isProgram()WebGLRenderingContext.linkProgram()WebGLRenderingContext.useProgram()WebGLRenderingContext.validateProgram()WebGLRenderingContext.getProgramParameter()WebGLRenderingContext.getProgramInfoLog()