rns the current 4x4 projection matrix.
</DD>
</DL>
<BR>
<BR>

<A NAME="36382"></A>
<B>:project</B> <EM>vec </EM>[method]

<DL COMPACT>
<DT> 
<DD> 
<EM>Vec</EM> is a three-dimensional homogeneous float-vector of four elements.
<EM>Vec</EM> is transformed by projection-matrix,
and the resulted homogeneous representation is returned.
</DD>
</DL>
<BR>
<BR>

<A NAME="36394"></A>
<B>:project3</B> <EM>vec </EM>[method]

<DL COMPACT>
<DT> 
<DD> 
<EM>Vec</EM> is a normal 3D float-vector.
<EM>Vec</EM> is homogenized 