WebGLQuery
The WebGLQuery
interface is part of the WebGL 2 API and provides ways to asynchronously query for information. By default, occlusion queries and primitive queries are available.
Another kind of queries are disjoint timer queries, which allow you to measure performance and profiling of your GPU. Disjoint timer queries are available with the EXT_disjoint_timer_query
extension only.
When working with WebGLQuery
objects, the following methods of the WebGL2RenderingContext
are useful:
Examples
Creating a WebGLQuery
object
in this example, gl
must be a WebGL2RenderingContext
. WebGLQuery
objects are not available in WebGL 1.
js
const query = gl.createQuery();
Specifications
Specification |
---|
WebGL 2.0 Specification # 3.2 |
Browser compatibility
BCD tables only load in the browser