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	Status	Comment
WebGL 1.0 The definition of 'isFramebuffer' in that specification.	Recommendation	Initial definition.
OpenGL ES 2.0 The definition of 'glIsFramebuffer' in that specification.	Standard	Man page of the OpenGL API.

Browser compatibility

See also

• WebGLRenderingContext.bindFramebuffer()
• WebGLRenderingContext.createFramebuffer()
• WebGLRenderingContext.deleteFramebuffer()
• Other buffers: WebGLBuffer, WebGLRenderbuffer