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 How to use Auto Exposure

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Auto Exposure is on by default.

 

macAutoExposureSettings

 

Controlling Auto Exposure

Increase the Exposure +/- value to control how Shaderlight exposes the image and ensure your materials are accurately represented.

 

exposureLampAdjustDown

exposureLampAuto

exposureLampAdjustUp

Exposure +/- set to -0.5

Auto Exposed

Exposure +/- set to +0.5

 

Tip: Don't try to make a scene brighter or darker just by increasing or decreasing the lighting intensity because Auto Exposure will automatically compensate

 

Use Exposure not Light Intensity

Shaderlight Auto Exposure continually adjusts the exposure of a scene to try and create the best image.  Shaderlight alters the exposure as light levels and materials are changed in your scene. For this reason, as you make changes, you may find the image doesn't update as you would expect. For example:

 

If you increase the brightness of a Preset Lighting Image in SketchUp (using the Dark slider), the Shaderlight image doesn't seem to change.

 

macExposureAutoIBLdark45

 

macExposureAutoIBLdark90

 

This is because as the light increases, Shaderlight automatically decreases the exposure to compensate. If you want a brighter image, adjust the   Exposure +/- control upwards.

 

macExposureAutoIBLadjust

 

If you have a mid-tone material in your scene and you increase the brightness of the color, it never seems to get any brighter in the Shaderlight image.

 

macExposureAutoMaterial50

 

macExposureAutoMaterial100

 

This is because the exposure adjusts the image to prevent extremes of color.

 

Increase the Exposure +/- value to control how Shaderlight exposes the image and ensure your materials are accurately represented.

 

macExposureAutoMaterialAdjust

 

The Auto Exposure works best when the scene has a range of colors and intensities in the image. With more variety, the dark colors stay dark and the light colors stay light.

 

SUexposureVariety

Auto Exposure performs best with a wide range of colors and intensities

 


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