Game Development Reference
In-Depth Information
FIGURE A.10
Both objects react the same to the light as it moves around the scene.
The only drawback to normal maps (as with bump maps) is that they don't physically alter
the geometry, so when the plane is viewed from the side, as in
Figure A.11
, the illusion is
shattered.
FIGURE A.11
When not viewed directly, the normal map does not work as well
