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>swf_perspective</H1
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><P
> (PHP 4 )</P
>swf_perspective --
Define a perspective projection transformation
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><H2
>Description</H2
>void <B
CLASS="methodname"
>swf_perspective</B
> ( double fovy, double aspect, double near, double far)<BR
></BR
><P
> The <B
CLASS="function"
>swf_perspective()</B
> function defines a
perspective projection transformation. The
<TT
CLASS="parameter"
><I
>fovy</I
></TT
> parameter is field-of-view angle in
the y direction. The <TT
CLASS="parameter"
><I
>aspect</I
></TT
> parameter
should be set to the aspect ratio of the viewport that is being
drawn onto. The <TT
CLASS="parameter"
><I
>near</I
></TT
> parameter is the
near clipping plane and the <TT
CLASS="parameter"
><I
>far</I
></TT
> parameter
is the far clipping plane.
</P
><DIV
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><BLOCKQUOTE
CLASS="note"
><P
><B
>Nota: </B
>
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.
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