Squashed 'third_party/eigen/' content from commit 61d72f6
Change-Id: Iccc90fa0b55ab44037f018046d2fcffd90d9d025
git-subtree-dir: third_party/eigen
git-subtree-split: 61d72f6383cfa842868c53e30e087b0258177257
diff --git a/demos/opengl/icosphere.h b/demos/opengl/icosphere.h
new file mode 100644
index 0000000..b0210ed
--- /dev/null
+++ b/demos/opengl/icosphere.h
@@ -0,0 +1,30 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef EIGEN_ICOSPHERE_H
+#define EIGEN_ICOSPHERE_H
+
+#include <Eigen/Core>
+#include <vector>
+
+class IcoSphere
+{
+ public:
+ IcoSphere(unsigned int levels=1);
+ const std::vector<Eigen::Vector3f>& vertices() const { return mVertices; }
+ const std::vector<int>& indices(int level) const;
+ void draw(int level);
+ protected:
+ void _subdivide();
+ std::vector<Eigen::Vector3f> mVertices;
+ std::vector<std::vector<int>*> mIndices;
+ std::vector<int> mListIds;
+};
+
+#endif // EIGEN_ICOSPHERE_H