This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
GLenum gl.clientWaitSync(sync, flags, timeout);
WebGLSyncobject on which to wait on.
GLbitfieldspecifying a bitwise combination of flags controlling the flushing behavior. May be
GLint64specifying a timeout (in nanoseconds) for which to wait for the sync object to become signaled. Must not be larger than
GLenum indicating the sync object's status.
gl.ALREADY_SIGNALED: Indicates that the sync object was signaled when this method was called.
gl.TIMEOUT_EXPIRED: Indicates that the
timeouttime passed and that the sync object did not become signaled.
gl.CONDITION_SATISFIED: Indicates that the sync object was signaled before the
gl.WAIT_FAILED: Indicates that an error occurred during the execution.
var sync = gl.fenceSync(gl.SYNC_GPU_COMMANDS_COMPLETE, 0); var status = gl.clientWaitSync(sync, 0, 0);
The definition of 'clientWaitSync' in that specification.
|Editor's Draft||Initial definition for WebGL.|
|OpenGL ES 3.0
The definition of 'glClientWaitSync' in that specification.
|Standard||Man page of the (similar) OpenGL API.|
|Feature||Chrome||Firefox (Gecko)||Internet Explorer||Opera||Safari|
|Basic support||No support ||Nightly build ||No support||No support||No support|
|Feature||Android||Chrome for Android||Firefox Mobile (Gecko)||IE Mobile||Opera Mobile||Safari Mobile|
|Basic support||No support||No support||No support||No support||No support||No support|
 WebGL 2 is enabled by default in Firefox Nightly. To enable it in a release version of Firefox, set the preference
true in about:config.
 To use an experimental implementation of WebGL 2 in Chrome, you have to start Chrome with the runtime flag