Premixing

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Mixing Color Strings

  • Color string: group of prepared blobs of a given hue mixed in a set of steps from light to dark
    • saves time when painting observationally
  • Free mixing
    • where you use the brush to mix each new stroke from the tube colors
  • Premixing
    • batches of colors prepared in advance
  • Colors should be carefully mixed from observation
  • Advantages:
    • uses less palette surface
    • you can premix generous batches with a palette knife rather than a brush
    • saves time
  • The Reilly Method
    • mix several color strings and use 10 tonal steps for each hue
      • (10 value steps are more than you really need for most paintings)
      • 4 or 5 is a good place to start
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Gamut Mapping
Gamut Mapping
  • the entire group of possible colors for a given painting
    • shown as a polygon superimposed over the color wheel
  • good color comes not just from what you include in a composition, but what you leave out of it
  • Subjective primaries
    • the cleanest mixtures between any two of the starting colors
  • Subjective neutral
    • the color note that appears  in the geometric center of the gamut
  • Saturation cost
    • the secondaries of any triadic gamut will be lower in chroma than the primaries
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Creating Gamut Masks
  • the mask is a valuable tool not just for describing existing color schemes, but also for inventing new ones
  • Advantages:
    • you're not limited to the choices of pigment based limited palettes
    • by rotating the gamut mask around the color wheel, you can invent and preview new schemes
    • when taken as a whole, the colors feel sufficient for a complete color scheme
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Complementary gamut
Shapes of Color Schemes
  • each of the gamut masks described so far uses a polygonal shape
    • most common shape is the triangle
  • atmospheric triads
    • an equilateral triangle shifted over to one side of the color wheel without overlapping the center
    • moody and subjective; ideal for color scripting
  • complementary gamut
    • looks like a long diamond stretching across the color wheel
    • pits opposites against each other but it is still fairly stable
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Mixing a controlled gamut
  • once you have chosen a gamut, mix the strings of color defined by it
    • these strings become the source colors for the whole painting
    • ensures that you stay within the color scheme
  • extend each color into 4 different values
    • try to keep the hue and chroma consistent for each color
  • before you start painting, remove all the tube colors that were squeezed onto the palette (except for white)
    • these colors are out of your gamut
  • harmony and unity are given because they are built into the process
  • Tip
    • disable the white balance on your camera or it will cancel out the color cast you created
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Color Scripting
Color Scripting
  • in a sequential art form, no color scheme stands alone
    • every frame must be seen in relation to the one that follows and proceeds it
  • consider the changing moods
  • shows in semi abstract form, a series of consecutive page spreads
    • each unit is held within a given gamut 

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