Adds a node that create a 'CameraExposureSettings' from its members
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Method
EAutoExposureMethod Enum
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Luminance computation method |
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Low Percent
Float
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The eye adaptation will adapt to a value extracted from the luminance histogram of the scene color. The value is defined as having x percent below this brightness. Higher values give bright spots on the screen more priority but can lead to less stable results. Lower values give the medium and darker values more priority but might cause burn out of bright spots. >0, <100, good values are in the range 70 .. 80 |
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High Percent
Float
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The eye adaptation will adapt to a value extracted from the luminance histogram of the scene color. The value is defined as having x percent below this brightness. Higher values give bright spots on the screen more priority but can lead to less stable results. Lower values give the medium and darker values more priority but might cause burn out of bright spots. >0, <100, good values are in the range 80 .. 95 |
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Min Brightness
Float
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A good value should be positive near 0. This is the minimum brightness the auto exposure can adapt to. It should be tweaked in a dark lighting situation (too small: image appears too bright, too large: image appears too dark). Note: Tweaking emissive materials and lights or tweaking auto exposure can look the same. Tweaking auto exposure has global effect and defined the HDR range - you don't want to change that late in the project development. Eye Adaptation is disabled if MinBrightness = MaxBrightness |
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Max Brightness
Float
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A good value should be positive (2 is a good value). This is the maximum brightness the auto exposure can adapt to. It should be tweaked in a bright lighting situation (too small: image appears too bright, too large: image appears too dark). Note: Tweaking emissive materials and lights or tweaking auto exposure can look the same. Tweaking auto exposure has global effect and defined the HDR range - you don't want to change that late in the project development. Eye Adaptation is disabled if MinBrightness = MaxBrightness |
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Speed Up
Float
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In F-stops per second, should be >0 |
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Speed Down
Float
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In F-stops per second, should be >0 |
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Exposure Bias
Float
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Logarithmic adjustment for the exposure. Only used if a tonemapper is specified. 0: no adjustment, -1:2x darker, -2:4x darker, 1:2x brighter, 2:4x brighter, ... |
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Exposure Bias Curve
Curve Float Object Reference
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Exposure compensation based on the scene EV100. Used to calibrate the final exposure differently depending on the average scene luminance. 0: no adjustment, -1:2x darker, -2:4x darker, 1:2x brighter, 2:4x brighter, ... |
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Exposure Metering Mask
Texture Object Reference
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Exposure metering mask. Bright spots on the mask will have high influence on auto-exposure metering and dark spots will have low influence. |
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Histogram Log Min
Float
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temporary exposed until we found good values, -8: 1/256, -10: 1/1024 |
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Histogram Log Max
Float
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temporary exposed until we found good values 4: 16, 8: 256 |
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Calibration Constant
Float
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Calibration constant for 18% albedo. |
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Apply Physical Camera Exposure
Boolean
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Enables physical camera exposure using ShutterSpeed/ISO/Aperture. |
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Camera Exposure Settings
Camera Exposure Settings Structure
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