Defines the brightness, contrast, mid tones, and exterior daylight for the current viewport when rendering.
Adjusts the render exposure settings for the current viewport using the most recent rendered output as a reference, without the need to wait for a new rendering.
The following options are displayed.
(LOGEXPBRIGHTNESS system variable)
(LOGEXPCONTRAST system variable)
(LOGEXPMIDTONES system variable)
(LOGEXPDAYLIGHT system variable)
Specifies if the background should be processed by exposure control at render time.