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To draw a sphere, I'm gonna
begin with my Ellipse tool.
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Hold the Shift key as I draw a circle.
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If the last thing you had selected
was filled with a gradient,
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this will already be filled
with a gradient.
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Over on the Toolbox, I can hit
the Gradient Fill.
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That should make the gradient
panel pop open.
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If it doesn't, you'll find it in the Window
menu with all of the other panels.
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Make sure your focus is on the fill;
it's possible to stroke with gradients,
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but we don't want to do that.
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There are three kinds of gradients
you can have in Illustrator:
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Linear, radial, and freeform gradients.
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We're gonna use the radial gradient
to make this circle look like a sphere.
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If I wanted it to look like a green sphere,
I might select the first color stop,
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and over on the Color panel, I want
to choose a very light green color.
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Since my color sliders aren't showing,
I go to the fly-out menu to RGB or CMYK.
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And I can pick a very light green color.
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If that doesn't change your shape,
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double-check to make sure
the shape is selected.
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You have to select things
before you change them.
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If you ever see an alert on a color,
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that just means that the
brightness of the color
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does not show that way
in the CMYK color model;
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it'll offer you the nearest CMYK
equivalent that's within the gamut.
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Since I'm working in RGB,
I can ignore that.
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I can click on this other color stop,
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and as a shortcut to
converting the color model,
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you can Shift-click on the greyscale
ramp to cycle right into RGB.
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Another shift-click changes to HSB;
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another Shift-click gets you to CMYK;
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and it just cycles between
all of them by Shift-clicking.
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So I'll choose a nice
dark-green color there.
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The Gradient tool over on the Toolbox,
as soon as I click on that,
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that shows a line; that's called
the gradient annotator;
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and I can pick up and move that line
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to relocate where the center
and the edge of the gradient is.
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Those circles are actually the same as the
color stops over on the gradient panel,
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so I can actually work on
the gradient over here.
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The diamond up top,
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both on the Gradient Annotator
and the Gradient Panel;
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that's the color midpoint.
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That's where it's halfway light green,
to halfway dark green.
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So you can further change
the rate of fade
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from one color to
the next in a gradient.
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You can expand the gradient
by dragging that last handle.
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Or you can ignore the Gradient Annotator,
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and simply use the Gradient tool to
draw across the shape to reposition it.
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I find spheres look a whole lot better
if you have a couple extra colors.
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In addition to the lightest green—
I'm gonna slide that over.
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Notice my shape is still selected,
so I'm making changes directly to it;
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anywhere you want another colorstop,
just click right beneath the color ramp
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and use the Color panel
to choose the color.
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This is pure white right here.
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That creates a nice, bright highlight.
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I'm gonna add a medium dark green;
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and then I'm gonna transpose
the positions of these guys.
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And that creates the illusion
of some ambient light
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bouncing off something behind the
sphere, and hitting the back side.
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And I can further use the
Gradient tool to position that.
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If I wanted it to look like the sphere
was casting a soft shadow,
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I could start with an ellipse.
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Since this is the second thing I drew,
it's laying on top of the circle,
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so I'll send it to the back.
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I'll remove the stroke
by setting it to None.
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And back on the fill, I just need
a gray-to-white gradient.
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I'll take away two of these stops
by pulling them off the panel.
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I've already got the white one.
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I'll just turn this one to gray;
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again, by starting with black,
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and holding the Shift key
as I drag any slider.
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Radial gradients fill from the center at
the left end of the gradient ramp
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outward in all directions,
to whatever your second color is.
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So I need these two reversed.
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And with the gradient tool,
not only can I scale;
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I can rotate to the gradient,
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and squeeze the gradient
with that top handle.
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So I'll pick up the bar; try to get
it centered within that... ellipse.
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Doesn't have to go all
the way to the edge.
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And I can put a third color stop
that is a very dark grey.
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To make it look like the sphere is
actually contacting the surface
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directly beneath it.
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And I can nudge this ellipse
around with my arrow keys.