EXT_disjoint_timer_query: endQueryEXT() 方法

endQueryEXT(target)

const ext = gl.getExtension("EXT_disjoint_timer_query");
const query = ext.createQueryEXT();
ext.beginQueryEXT(ext.TIME_ELAPSED_EXT, query);

// …

ext.endQueryEXT(ext.TIME_ELAPSED_EXT);