gluTessBeginContour
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## Name

gluTessBeginContour, gluTessEndContour — delimit a contour description

## C Specification

`void `gluTessBeginContour`` | `(` | `GLUtesselator* `tess`);`
`void `gluTessEndContour`` | `(` | `GLUtesselator* `tess`);`

## Python Specification

``gluTessBeginContour`` | `(` | ``tess`) → `None``
``gluTessEndContour`` | `(` | ``tess`) → `None``

## Parameters

`tess`
  Specifies the tessellation object (created with `gluNewTess`).

## Description

`gluTessBeginContour` and `gluTessEndContour` delimit the definition of a polygon contour. Within each `gluTessBeginContour`/`gluTessEndContour` pair, there can be zero or more calls to `gluTessVertex`. The vertices specify a closed contour (the last vertex of each contour is automatically linked to the first). See the `gluTessVertex` reference page for more details. `gluTessBeginContour` can only be called between `gluTessBeginPolygon` and `gluTessEndPolygon`.

## See Also

gluNewTess, gluTessBeginPolygon, gluTessVertex, gluTessCallback, gluTessProperty, gluTessNormal, gluTessEndPolygon

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