Methods and apparatus for perspective transforming a plurality of objects
in a three-dimensional space into a two-dimensional space, each object having a
plurality of vertexes, the methods and apparatus determining whether the plurality
of vertexes for each of the objects are localized within the three-dimensional
space; performing a first perspective transformation process on the respective
plurality of vertexes of the objects when the plurality of vertexes for each of
the objects are not localized within the three-dimensional space; and performing
a second perspective transformation process on the respective plurality of vertexes
of the objects when the plurality of vertexes for each of the objects are localized
within the three-dimensional space, wherein the second perspective transformation
process requires less calculating power than the first perspective transformation process.
