illustration and design

line

an identifiable path created by a point moving in space

defines the edges of a form

contour lines

the boundary edge of a shape

define the 3D form of an object through line

blind contour

when you look at only the object and not the paper

assisted contour

looking at your paper occasionally

cross contour

lines that travel across the form

line quality

the descriptive quality of the lines in a drawing

expressive lines

emotional qualities on lines

Value

the lightness/darkness of color

value drawing

layer mark making on a surface ground

mark making

drawing using different lines dots marks patterns and textures

highligh

brightest area hit by light source

midtone

near the highlight. level of light is subdued

core shadow

also form

turned away from rays of light

reflected light

weak light that bounces off a nearby surface onto the shadowed side of the form

cast shadow

shadow onto an adjacent or nearby surface away from the light source

h pencil

light lines, technical drawing

B pencils

regular sketching/blending

tortillion

for blending, light shading

kneaded eraser

soft eraser for adding highlights and softening dark areas

hatching

skading technique where value is built up through thin strokes

cross hatching

hatching but building tones through lines that cross over eachother

perspective

technique used to represent three dimensional world

horizon line

viewers eye level

vanishing point

point where parallel lines appear to converge on the horizon

orthogonal lines

lines that meet on the vanishing point

one pt persp

one vanishing point

two pt persp

two vanishing points

three pt persp

three vanishing points

foreshortening

creates illusion of an object receding into distance

diff between the perspectives

still life

artwork that features an arrangement of inanimate objects

vanitas

symbolism of worldy belongings and fragility of life

atmospheric perspective

clear details in front

colors and values fade as they go back in space

large objects in front

tromp l’oeil`

french phrase that means “deceives the eye”

describes drawings that create the illusion of a real object/scene