Auto Exposure and Auto White Balance are only calculated during Production Rendering.
Auto Exposure– When – When enabled, automatically calculates an appropriate exposure value for the render. This option requires Light Cache in Single frame mode. This can be set in the GI tab of the Render Settings.
Disabled – Auto Exposure is not applied. Center-weighted Average – Calculates the exposure by evaluating the light in the center of the frame and its surroundings, ignoring the corners. Histogram – Calculates a histogram of the image, which allows very bright or very dark areas of the scene to be excluded from the exposure calculations, creating a more balanced result.
AutoWhite Balance – Automatically determines a suitable white balance value for the image. This option requires Light Cache in Single frame mode. This can be set in the GI tabof the Render Settings.
Transfer – This option, for both the Auto Exposure and the Auto White Balance, becomes available after the calculations are complete. When activated, this option transfers the automatically calculated values for either Film Speed (ISO) or White Balance, respectively, onto the camera's options.
