Reflection of
light.
Specular and diffused
reflection
Smooth or gloss
surface. (Mirror,
glass or still body of
water)
Rough or matt
surface. (bricks,
wood, wall paint or
skin)
Specular
reflection
Diffused
reflection
Specular
reflection
Allows us to see
ourselves
Diffused
reflection
Allows us to see
everything
How do we represent
this is diagrams.
First of all, we do NOT
consider the whole
building or object all at
once.
It’s just far too complex.
We represent one light ray by
drawing a single straight line
towards the object. Then represent
what happens to that one ray at a
single point on the object
Block of Wood
Block of Wood
Single light
ray
Block of Wood
One point of
interaction with
object.
Block of Wood
Block of Wood
Block of Wood
All resulting rays
begin at same point
Block of Wood
Diffused Reflection
Tinted Window
Tinted Window
Single light
ray.
One point of
interaction with
object.
Tinted Window
Tinted Window
Tinted Window
The resulting ray begins
at same point.
Tinted Window
Specular Reflection
Single light
ray.
One point of
interaction with
object.
The resulting rays begin at
the same point.
Specular and Diffused Reflection
Now it is your turn to draw some
diffused and specular reflected rays