Catmull–Clark subdivision surface: Difference between revisions

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=={{header|Tcl}}==
=={{header|Tcl}}==
{{incorrect|Tcl|wrong output data, the border of the hole should be smooth}}
{{incorrect|Tcl|Wrong output data, the border of the hole should be smooth.}}
This code handles both holes and arbitrary polygons in the input data.
This code handles both holes and arbitrary polygons in the input data.
<lang tcl>package require Tcl 8.5
<lang tcl>package require Tcl 8.5