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<refentry id="ftmorf">
<indexterm id="IndexFtmorf"><primary>ftmorf</primary></indexterm>
<refentryinfo><title>Signal Modifiers:Convolution and Morphing</title></refentryinfo>
<refmeta>
<refentrytitle>ftmorf</refentrytitle>
</refmeta>
<refnamediv>
<refname>ftmorf</refname>
<refpurpose>
Morphs between multiple ftables as specified in a list.
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>
Uses an index into a table of ftable numbers to morph between adjacent tables in the list.This morphed function is written into the table referenced by <emphasis>iresfn</emphasis> on every k-cycle.
</para>
</refsect1>
<refsect1>
<title>Syntax</title>
<synopsis><command>ftmorf</command> kftndx, iftfn, iresfn</synopsis>
</refsect1>
<refsect1>
<title>Initialization</title>
<para>
<emphasis>iftfn</emphasis> -- The table containing the numbers of any existing tables which are used for the morphing.
</para>
<para>
<emphasis>iresfn</emphasis> -- Table number of the morphed function
</para>
<para>
The length of all the tables in <emphasis>iftfn</emphasis> must equal the length of <emphasis>iresfn</emphasis>.
</para>
</refsect1>
<refsect1>
<title>Performance</title>
<para>
<emphasis>kftndx</emphasis> -- the index into the <emphasis>iftfn</emphasis> table.
</para>
<para>
If <emphasis>iftfn</emphasis> contains (6, 4, 6, 8, 7, 4):
<itemizedlist>
<listitem>
<para>
<emphasis>kftndx=4</emphasis> will write the contents of f7 into <emphasis>iresfn</emphasis>.
</para>
</listitem>
<listitem>
<para>
<emphasis>kftndx=4.5</emphasis> will write the average of the contents of f7 and f4 into <emphasis>iresfn</emphasis>.
</para>
</listitem>
</itemizedlist>
</para>
<note>
<para>
<emphasis>iresfn</emphasis> is only updated if the morfing index changes it's value,
if <emphasis>kftindx</emphasis> is static, no writing to <emphasis>iresfn</emphasis> will occur.
</para>
</note>
</refsect1>
<refsect1>
<title>Examples</title>
<para>
Here is an example of the ftmorf opcode. It uses the file <ulink url="examples/ftmorf.csd"><citetitle>ftmorf.csd</citetitle></ulink>.
<example>
<title>Example of the ftmorf opcode.</title>
<para>See the sections <link linkend="UsingRealTime"><citetitle>Real-time Audio</citetitle></link> and <link linkend="CommandFlags"><citetitle>Command Line Flags</citetitle></link> for more information on using command line flags.</para>
<xi:include href="examples-xml/ftmorf.csd.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
</example>
</para>
</refsect1>
<refsect1>
<title>Credits</title>
<para>
<simplelist>
<member>Author: William <quote>Pete</quote> Moss</member>
<member>University of Texas at Austin</member>
<member>Austin, Texas USA</member>
<member>Jan. 2002</member>
</simplelist>
</para>
<para>New in version 4.18</para>
</refsect1>
</refentry>
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