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Bug HDR color picker >1 intensity drops the rgb

Discussion in 'Editor & General Support' started by andyz, Sep 22, 2020.

  1. andyz

    andyz

    Joined:
    Jan 5, 2010
    Posts:
    2,276
    Why does the HDR color picker do odd things when you increase the intensity after you close it.
    e.g. set intensity to 2 with a white (255,255,255) color and close the picker, then when you open it your color is 191,191,192, intensity is 2.4169 which is a lot less 'logical'

    Bug or some odd feature?
     
    andyz, Sep 22, 2020
    #1

  2. andyz

    andyz

    Joined:
    Jan 5, 2010
    Posts:
    2,276
    Bug / feature?!
     
    andyz, Sep 29, 2020
    #2

  3. PraetorBlue

    PraetorBlue

    Joined:
    Dec 13, 2012
    Posts:
    7,909
    It's a feature. HDR does something like simulating a larger color space than is available in the normal RGB 0-255 color space. It does this by essentially scaling colors relative to one another to achieve desired relative brightness/darkness (I might be making this up. I'm not 100% sure how it works).

    Read the sentence at the bottom of this page about the behavior you're seeing: https://docs.unity3d.com/Manual/HDRColorPicker.html
     
    PraetorBlue, Sep 29, 2020
    #3
    andyz likes this.