WebGLRenderingContext: isFramebuffer() method

{{APIRef("WebGL")}}{{AvailableInWorkers}}

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

Syntax

isFramebuffer(framebuffer)

Parameters

• framebuffer
  • : A {{domxref("WebGLFramebuffer")}} to check.

Return value

A {{domxref("WebGL_API/Types", "GLboolean")}} indicating whether or not the frame buffer is valid.

Examples

Checking a frame buffer

const canvas = document.getElementById("canvas");
const gl = canvas.getContext("webgl");
const framebuffer = gl.createFramebuffer();

gl.isFramebuffer(framebuffer);

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• {{domxref("WebGLRenderingContext.bindFramebuffer()")}}
• {{domxref("WebGLRenderingContext.createFramebuffer()")}}
• {{domxref("WebGLRenderingContext.deleteFramebuffer()")}}
• Other buffers: {{domxref("WebGLBuffer")}}, {{domxref("WebGLRenderbuffer")}}