From dfb4e0f8076528d3668a910f0456628d923a1381 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Fri, 7 Sep 2012 02:43:00 +0200
Subject: [PATCH] Mesh: ability to specify which polygons are front facing.

---
 src/Mesh.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/src/Mesh.h b/src/Mesh.h
index d4bd94987..dd7972adf 100644
--- a/src/Mesh.h
+++ b/src/Mesh.h
@@ -52,6 +52,28 @@ class MAGNUM_EXPORT Mesh {
     public:
         /** @name Polygon drawing settings */
 
+        /**
+         * @brief Front facing polygon winding
+         *
+         * @see setFrontFace()
+         */
+        enum FrontFace: GLenum {
+            /** @brief Counterclockwise polygons are front facing (default). */
+            CounterClockWise = GL_CCW,
+
+            /** @brief Clockwise polygons are front facing. */
+            ClockWise = GL_CW
+        };
+
+        /**
+         * @brief Set front-facing polygon winding
+         *
+         * Initial value is `FrontFace::%CounterClockWise`.
+         */
+        void setFrontFace(FrontFace mode) {
+            glFrontFace(static_cast<GLenum>(mode));
+        }
+
         /**
          * @brief Provoking vertex
          *