WebGLRenderingContext.isFramebuffer()

The WebGLRenderingContext.isFramebuffer() method of the WebGL API returns true if the passed WebGLFramebuffer is valid and false otherwise.

Syntax

GLboolean gl.isFramebuffer(framebuffer);

Parameters

framebuffer: A WebGLFramebuffer to check.

Return value

A GLboolean indicating whether or not the frame buffer is valid.

Examples

Checking a frame buffer

var canvas = document.getElementById('canvas');
var gl = canvas.getContext('webgl');
var framebuffer = gl.createFramebuffer();

gl.isFramebuffer(framebuffer);

Specifications

Specification
WebGL Specification (WebGL) # 5.14.6

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`isFramebuffer`	9	12	4	11	12	5.1	≤37	25	Yes	12	8	1.5