2. Ch 4: Painting
Understanding HSB Color
• Hue is what we think of as colors of
the rainbow
• Saturation refers to how much hue is
present
• Brightness refers to the light intensity
• Tints have full brightness but low
saturation
• Shades have full saturation but
decreased brightness
• Desaturated color is grayscale,
having only variation in brightness
3. Ch 4: Painting
Heads Up Color Wheel
• You can select the HUD Color Wheel in the
Preferences dialog box
• On the Mac, hold down Cmd+Opt+Control
and drag the left mouse button in the
document window.
• On Windows hold down Shift+Alt and drag
the right mouse button in the document
window.
• The HUD Color wheel is useful for
identifying complementary colors and
picking any combination of saturation
and brightness in the central color ramp
4. Ch 4: Painting
Rotating the View
• Press R to select the Rotate View
tool (under the Hand tool in the
Tools panel)
• It is helpful to rotate the view when
sketching with a pencil or
painting with any brush tool
• You can align the view to the arc of
your arm or wrist’s natural
swing when you are tracing a
photo or painting in fine detail
• Click Reset View on the options
bar to rotate back to the default
view
3D model courtesy of Google 3DWarehouse user Krzysio
5. Ch 4: Painting
Eraser Tool
• Use the Eraser to paint in the
background color
• The Eraser tool has three modes:
pencil, brush, and block
• Pencil mode is good for removing
one pixel at a time
• Brush mode supports partial erasure
when the brush has reduced
hardness
• Block mode is good for erasing rows
and/or columns while holding
Shift
6. Ch 4: Painting
Background Eraser Tool
• Erases pixels leaving only
transparency
• Sampling: Continuous erases
everything you paint over
• Sampling: Once can be used to
remove a single sampled color
where you start the brushstroke
• Sampling: Background Swatch
removes the color in the
background swatch no matter
where you start the brushstroke
7. Ch 4: Painting
Flow vs. Opacity
• The Brush tool has flow and opacity
percentages on the options bar
• Painting at 100% in both flow and
opacity doesn’t allow you to build
up paint
• Painting at decreased flow (top)
builds saturation where
brushstrokes overlap
• Painting at decreased opacity is like
painting with a wash (watered
down paint) where overlapping
paint has increased opacity
8. Ch 4: Painting
Understanding Brush Controls
• Brushstrokes are actually a series of
copies of a shape made in the
direction of the stroke
• By increasing the spacing in the
Brush panel you will perceive a
staccato repetition of the shape
along the brushstroke
• Use Scattering controls to randomly
reposition shapes along the
brushstroke
• You can randomize color with Color
Dynamics controls
9. Ch 4: Painting
Using a Tablet
• The mouse is not a good input device
for brush work (it’s like painting with
a bar of soap!)
• Pressure and tilt sensitive tablets are
highly recommended for painting in
Photoshop
• Bristle tip brushes take advantage of
tablets by allowing you to make a
wide variety of marks by varying tilt
and pressure, just like you might
use a real paintbrush
• The stylus is an absolute positioning
device which is more intuitive
