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Thread: Blending blue and white oils results in turquoise

  1. #1
    Join Date
    Dec 2010
    Location
    West Sussex, UK
    Posts
    32

    Blending blue and white oils results in turquoise

    Hi, folks.

    I've been using both Artrage 2 and Artrage 3.08 Studio. In both, where I try and blend white into blue in order to lighten it, the blue is contaminated by a turquoise tinge. I'll attempt to attach an example. Does anyone else get this, and is there a way to fix it? It's ruining my skies! Any help much appreciated. Thanks in advance - Tom.
    Attached Images Attached Images  

  2. #2
    Join Date
    Mar 2006
    Location
    New Zealand
    Posts
    3,134
    The cyan shift is a side effect of the RGB colour blend as the blue shifts towards white. You may find that Real Color Blending mode in 3.0.8 reduces this in this particular case.

    Another thing that may also reduce it is to avoid over-blending - Basically, if there is any shift towards a color you don't want in the paint, continuing to blend will potentially continue to add more of that color due to the way the simulation works, so when you see the problem appear, stop the stroke and blend over it with some paint around and it may correct it.

    We're looking at revising color blending however and we hope to address some of the concerns regarding resulting colors in this kind of situation.
    Matt
    ArtRage UI
    Ambient Design.

  3. #3
    Join Date
    Dec 2010
    Location
    West Sussex, UK
    Posts
    32
    Thanks for your answer, Matt.

  4. #4
    Join Date
    Dec 2009
    Location
    Ireland
    Posts
    35
    matt i find that almost all blending with either real color mode on or off results in incorrect hues and much too high saturation. and although this can produce some nice accidents and effects it is too far from realistic to control without adding heaps more time into an image. in real paint all color mixes result in a color less saturated than the colors it is mixed from.

  5. #5
    Join Date
    Mar 2006
    Location
    New Zealand
    Posts
    3,134
    We're making some changes to our colour blending models and hope to continue improving them over time, we'll look in to this specific situation as we do that and see if we can wrap it in to the changes we're making. Thanks for letting us know!
    Matt
    ArtRage UI
    Ambient Design.

  6. #6
    Join Date
    Dec 2009
    Location
    Ireland
    Posts
    35
    it might be worth looking at david brigg´s website about color, here he explains how colors affect each other when mixed in a way that can be understood and possibly translated into artrage.

    http://www.huevaluechroma.com/index.php

  7. #7
    Join Date
    Jan 2014
    Posts
    1

    Still quite bad effect in 4

    This is still a serious defect: Blue and white paint, when blended on the same layer, generate green. It blends OK with a white canvas or other layers, no doubt because the algorithm does not engage the two paints. So a workaround is to separate it from layers as I did in a recent winter painting with a lot of this blending.
    I notice I labeled my demo in the reverse: It is a blend knife on the left and a blur on the right side of the white down stroke.
    Name:  Blue White blending.jpg
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Size:  78.8 KB
    Name:  snow blending demo.jpg
Views: 66
Size:  218.9 KB
    Last edited by Ted Phelps; 03-27-2014 at 09:28 AM.

  8. #8
    Join Date
    Mar 2012
    Posts
    3,791
    That 'white' crossover you've done is not a perfect white, which is dragging yellow into your blend.

    Sometimes, after the blending is done I get the Ink Pen set on 'Color', get the blue I want and paint over the offending area. Not perfect, but it helps.

    Also you can use layers more and blend the edges with the Airbrush.
    Last edited by copespeak; 03-27-2014 at 09:59 AM.

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