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
Diffused reflection
Allows us to see everything
Allows us to see ourselves
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
Single light ray
Block of Wood
One point of interaction with
object.
Block of Wood
All resulting rays begin at same point
Block of Wood
Diffused Reflection
Tin
ted W
ind
ow
Single light ray.
Tin
ted W
ind
ow
One point of interaction with
object.
Tin
ted W
ind
ow
The resulting ray begins at same point.
Tin
ted W
ind
ow
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