TIME:
Allow 40 min

Aim:
To learn how to plot shadows on differing surfaces. Here we shall plot and draw the shadow of a ladder leaning against a wall.

Materials:
The sketch pad,
HB pencil, ruler.

To Begin revise: Method of introducing light source and estimating its ground position. Ask which way the shadow should be directed, forward or back.

Construct margin and title box on a new page then:

b) Construct the simple corner of a room using a CVP.

c) This 'oblique' line will represent one runner of the ladder. Call it 'ab'

d) 'cd' is parallel to 'ab'. Construct as shown with lines to VP.

e) Add the ladder 'rungs' and firm them in.

f) Establish the light source - drop to floor and construct shadow lines as demonstrated above.

g) This diagram shows the method of constructing a shadow cast by one of the 'rungs.'

h) Shade in the shadow 'freehand' as shown.

i) Complete the shadow and add other appropiate details

Home study :
Experiment, add other objects ... a bucket on the floor and its shadow.

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