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exposure control of 32bit exr in unity

Discussion in 'Shaders' started by joyceanblue, Jan 30, 2013.

  1. joyceanblue

    joyceanblue

    Joined:
    Jul 26, 2010
    Posts:
    43
    hi mates, i have been asking myself this question from last few days. what is the use of bringing 32 bit exr to unity? specially when using them for external lightmaps. is there a way we can control their exposure in unity? or utilize some other plugin such as SSE or Substance Designer. what are your thoughts?
     
    joyceanblue, Jan 30, 2013
    #1

  2. Daniel_Brauer

    Daniel_Brauer

    Unity Technologies

    Joined:
    Aug 11, 2006
    Posts:
    3,355
    On desktop, EXR files are imported as R8G8B8M8, where M is a multiplier with range [0..8]. Usually, you don't change the "exposure" of a single texture. Instead, you render to a float target by enabling HDR, and then adjust your camera exposure using the Tonemapping effect.
     
    Daniel_Brauer, Jan 31, 2013
    #2

  3. joyceanblue

    joyceanblue

    Joined:
    Jul 26, 2010
    Posts:
    43
    thanks for the info Daniel, I wish there was a way to adjust exposure for single texture.
     
    joyceanblue, Feb 2, 2013
    #3