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Rendering - Exposure Values

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    #1

    Rendering - Exposure Values

    If you are tired of washed out daytime renderings here is a little tip to try:
    Just change the Exposure values in the adjust exposure dialog.

    For a Daytime Render:

    Exposure Value: 12.5
    Highlights: 1
    Midtones: 0.5
    Shadows: 0.2
    White Point: 7500
    Saturation: 1.7

    These may not be perfect for every single rendering but just adjust these values in little increments to suit your style ( best approach is to change one value a time and see if you like the result) After you get a nice image remember to write down the settings used.)

    I'm sure most might still want to touch up the image in another program like photoshop. But this will give you a nice "base image to work on".

    For a Sunset Rendering:

    Exposure Value: 16
    Highlights: 1
    Midtones: 0.7
    Shadows: 2
    White Point: 10000
    Saturation: 1.4

    This one I'm still experimenting with but its getting there..

    Please post your setting if you have found any to be good for other times of the day such as dawn or night time

    Hope this helps!

    EDIT: What is a rendering gallery without the renderings? Here is a before and after to show the effect of the daytime adjustments.

    Bank before.jpg Bank After.jpg
    Last edited by JCM; February 4, 2011, 02:25 PM. Reason: Added Samples
    Juan Carlos Moreno
    Store Designer & Merchandising Manager
    Sisley Cosmetics
    Tags: exposure values, rendering
    #2
    This actually reminded me of a similar post on the HOK BIM blog:

    http://hokbimsolutions.blogspot.com/...-in-revit.html

    Lots of good stuff there...
    Chad Koscinski | Architect

    Comment

      #3
      Awesome link! Thanks, I think I will give those settings a try later tonight
      Juan Carlos Moreno
      Store Designer & Merchandising Manager
      Sisley Cosmetics

      Comment

        #4
        The Exposure settings are one of the single most important things to tweak to make an OK rendering into a great one. Never take the default & always play with the settings to see what you can get.

        Make small changes however on the main Exposure slider; the difference between 9 and 15 is sometimes night and day. ;-)

        Also: try doing a rendering at 2AM, then turn the exposure up into the 2-3 range. You'll get those 'soft' shadow-less renderings that Zack Kron is so fond of. This is because it's just using the nighttime ambient sky-dome to light the scene. Great way to get a nice more abstract rendering.
        Jeffrey McGrew
        Architect & Founder
        Because We Can, a Design-Build Studio
        Check out our new sister company Model No. making sustainable 3D printed furniture!

        Comment

          #5
          thanks for the tips!

          posting "before" and "after" photos. still playing with it but from the first run-through, i'm liking the way things come out
          Last edited by darryl; February 23, 2011, 10:36 PM.

          Comment

            #6
            Nice work Darryl!
            I would reduce the saturation just a bit and perhaps play a little with the white balance to reduce the blues just a bit
            but that's just me
            Juan Carlos Moreno
            Store Designer & Merchandising Manager
            Sisley Cosmetics

            Comment

              #7
              Just a word of caution, I tried these values in RAC 2012 and the results are not consistent any more. the same values gave me a completely different rendering. I'll keep testing some more
              Juan Carlos Moreno
              Store Designer & Merchandising Manager
              Sisley Cosmetics

              Comment

                #8
                Originally posted by JCM View Post
                Just a word of caution, I tried these values in RAC 2012 and the results are not consistent any more. the same values gave me a completely different rendering. I'll keep testing some more
                Apparently they weren't consistent in 2011 either

                Recommended Settings
                Capture.jpg Eeewwww!

                Reseting the Highlights to 0.1 instead of 1
                Capture2.jpg

                Sunset view
                Capture3.jpg

                Wonder why such a drastic difference.

                Comment

                  #9
                  And why no documentation of this from Autodesk? Rolling out 2012 to a team and not telling them all their render views are now jacked could lead to some real pain when a deadline approaches. So thanks for the heads up!

                  Gordon
                  Pragmatic Praxis

                  Comment

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