Shaders and Texturing - An Introduction to Computer Graphics for Artists - page 198

Fig. 11.18 The nine hand painted maps in this image were used as textures for the character in
Fig. 7.6 (Maps courtesy of Arno Schmitz)

Fig. 11.19 Palette on left based on photo reference

wall that has been painted white will not usually be white in the photograph, but
darker, because of the lighting in the environment. When designing swatches,
the artist should be aware of this and do their best to create a color that matches the
color of paint used on the wall rather than its appearance after lighting it.
If the wall is painted with one color and has no dirt or other marks, there should
be only one color assigned to that part of the map. The importance of the palette is
that artists can use it to better control the colors in the map.
Tip : When designing a palette, avoid making any color brighter than 230 or
darker than 30 in the luminosity channel. Values outside the range of 30-230 on the
luminosity scale are almost impossible to fi nd in the natural world or in any man-
made materials. Values outside this range will be diffi cult to light convincingly
because they are unnaturally bright or dark.