// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h

#ifndef IRR_E_PRIMITIVE_TYPES_H_INCLUDED
#define IRR_E_PRIMITIVE_TYPES_H_INCLUDED

namespace irr
{
namespace scene
{

	//! Enumeration for all primitive types there are.
	enum E_PRIMITIVE_TYPE
	{
		//! All vertices are non-connected points.
		EPT_POINTS=0,

		//! All vertices form a single connected line.
		EPT_LINE_STRIP,

		//! Just as LINE_STRIP, but the last and the first vertex is also connected.
		EPT_LINE_LOOP,

		//! Every two vertices are connected creating n/2 lines.
		EPT_LINES,

		//! After the first two vertices each vertex defines a new triangle.
		//! Always the two last and the new one form a new triangle.
		EPT_TRIANGLE_STRIP,

		//! After the first two vertices each vertex defines a new triangle.
		//! All around the common first vertex.
		EPT_TRIANGLE_FAN,

		//! Explicitly set all vertices for each triangle.
		EPT_TRIANGLES,

		//! After the first two vertices each further two vertices create a quad with the preceding two.
		//! Not supported by Direct3D
		EPT_QUAD_STRIP,

		//! Every four vertices create a quad.
		//! Not supported by Direct3D
		//! Deprecated with newer OpenGL drivers
		EPT_QUADS,

		//! Just as LINE_LOOP, but filled.
		//! Not supported by Direct3D
		//! Deprecated with newer OpenGL drivers
		EPT_POLYGON,

		//! The single vertices are expanded to quad billboards on the GPU.
		EPT_POINT_SPRITES
	};

} // end namespace scene
} // end namespace irr

#endif