swf_perspective — Define a perspective projection transformation
The swf_perspective() function defines a
perspective projection transformation. The
fovy parameter is field-of-view angle in
the y direction. The
should be set to the aspect ratio of the viewport that is being
drawn onto. The
near parameter is the
near clipping plane and the
is the far clipping plane.
Various distortion artifacts may appear when performing a perspective projection, this is because Flash players only have a two dimensional matrix. Some are not to pretty.