258 ◾ 3D Animation for the Raw Beginner Using Maya
Experimenting with Textures
Right now, we will look at a simple way to make those
seams between tiles less obvious. e goal is to get the
tiled texture to a point where the seams will not be
easily visible from whatever perspective and distance,
and under whatever lighting we plan to render it.
Adding Noise to the Tiling Lines
Remember our cactus texture? e tiled version of it is
shown in Figure9.1. We can clearly see the horizontal
lines in it, because they cut against the grain of the tex-
ture. What we want to do is soen those lines. One way
to do this is to use another texture to add some noise
to that tiled grain. We will do some experimentation to
see just what sort of texture, if added as a layer to our
tiled cactus texture, will get the job done.
Consider Figures9.2 and 9.3, these are the rust tex-
tures we looked at earlier. Now look at Figures9.4 and
9.5, these are organic textures, both of bushes. All four
of these textures oer a more irregular grain.
First, though, we need to decide just how to add this
layer to the tiled cactus texture. What we will use is a
“saturation” layer. Saturation refers to the brightness of
colors. Another way to look at it is that low saturation
tends to wash out a color. High saturation means the
color is more vibrant. Our goal will be to use the colors
of the new texture layer to inuence the colors of the
FIGURE 9.1 Original cactus patches.
FIGURE 9.2 Rusty metal 1. FIGURE 9.3 Rusty metal 2.