QueryTimeSwapped /

Begins the time elapsed query.

Ends the time elapsed query and swaps the currently active query buffer.

Returns the elapsed nano seconds from the previous frame query. This is the native data type of the underlying query object. Throws logic_error if not stopped.

Returns the elapsed Milliseconds from the previous frame query. Converts from what gl returns, which is nano seconds. Throws logic_error if not stopped.

Returns the elapsed seconds from the previous frame query. Converts from what gl returns, which is nano seconds. Throws logic_error if not stopped.

Constructs a swap buffer of GL_TIME_ELAPSED queries.