preparing for fragment rendering

1 files changed, 51 insertions, 0 deletions

diff --git a/src/model/fragment.h b/src/model/fragment.h
new file mode 100644
index 0000000..ba4eaf9
--- /dev/null
+++ b/src/model/fragment.h
@@ -0,0 +1,51 @@
+/*
+   model/fragment.h
+   This file is part of the Osirion project and is distributed under
+   the terms of the GNU General Public License version 2
+*/
+
+#ifndef __INCLUDED_MODEL_FRAGMENT_H__
+#define __INCLUDED_MODEL_FRAGMENT_H__
+
+#include "math/vector3f.h"
+#include "math/color.h"
+
+namespace model
+{
+
+/// a fragment of a model, a pointer into a continuues part of the VertexArray containt Tris or Quad data
+class Fragment
+{
+public:
+	/// fragment primitive type: triangles or quads
+	enum Type {Triangles, Quads};
+
+	/// create a new fragment
+	Fragment (Type type, unsigned int material);
+
+	/// add a vertex to the fragment
+	size_t add_vertex(math::Vector3f const & vertex, math::Vector3f const &normal, math::Color const & color, bool detail);
+
+	/// VertexArray index of the start of the fragment
+	inline size_t start() const { return fragment_start; }
+
+	/// number of structural vertices in the fragment
+	inline size_t structural_size() const { return fragment_structural_size; }
+
+	/// number of detail vertices in the fragment
+	inline size_t detail_size() const { return fragment_detail_size; }
+
+	/// material flags
+	inline unsigned int material() { return fragment_material; }
+
+private:
+	Type			fragment_type;
+	size_t			fragment_start;
+	size_t			fragment_structural_size;
+	size_t			fragment_detail_size;
+	unsigned int		fragment_material;
+};
+
+}
+
+#endif // __INCLUDED_MODEL_FRAGMENT_H__