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
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 9 | 12 | 4.0 (2.0) | 11 | 12 | 5.1 |
Feature | Android | Chrome for Android | Edge | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|---|
Basic support | ? | 25 | (Yes) | 4.0 (2.0) | 1.0 | ? | 12 | 8.0 |