+/* -*- c -*- */
+#ifndef INCLUDED_LIB3DS_ATMOSPHERE_H
+#define INCLUDED_LIB3DS_ATMOSPHERE_H
+/*
+ * The 3D Studio File Format Library
+ * Copyright (C) 1996-2001 by J.E. Hoffmann <je-h@gmx.net>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id: atmosphere.h,v 1.6 2004/12/31 16:17:15 reed Exp $
+ */
+
+#ifndef INCLUDED_LIB3DS_TYPES_H
+#include <lib3ds/types.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*!
+ * Fog atmosphere settings
+ * \ingroup atmosphere
+ */
+typedef struct _Lib3dsFog {
+ Lib3dsBool use;
+ Lib3dsRgb col;
+ Lib3dsBool fog_background;
+ Lib3dsFloat near_plane;
+ Lib3dsFloat near_density;
+ Lib3dsFloat far_plane;
+ Lib3dsFloat far_density;
+} Lib3dsFog;
+
+/*!
+ * Layer fog atmosphere flags
+ * \ingroup atmosphere
+ */
+typedef enum _Lib3dsLayerFogFlags {
+ LIB3DS_BOTTOM_FALL_OFF =0x00000001,
+ LIB3DS_TOP_FALL_OFF =0x00000002,
+ LIB3DS_FOG_BACKGROUND =0x00100000
+} Lib3dsLayerFogFlags;
+
+/*!
+ * Layer fog atmosphere settings
+ * \ingroup atmosphere
+ */
+typedef struct _Lib3dsLayerFog {
+ Lib3dsBool use;
+ Lib3dsDword flags;
+ Lib3dsRgb col;
+ Lib3dsFloat near_y;
+ Lib3dsFloat far_y;
+ Lib3dsFloat density;
+} Lib3dsLayerFog;
+
+/*!
+ * Distance cue atmosphere settings
+ * \ingroup atmosphere
+ */
+typedef struct _Lib3dsDistanceCue {
+ Lib3dsBool use;
+ Lib3dsBool cue_background;
+ Lib3dsFloat near_plane;
+ Lib3dsFloat near_dimming;
+ Lib3dsFloat far_plane;
+ Lib3dsFloat far_dimming;
+} Lib3dsDistanceCue;
+
+/*!
+ * Atmosphere settings
+ * \ingroup atmosphere
+ */
+struct _Lib3dsAtmosphere {
+ Lib3dsFog fog;
+ Lib3dsLayerFog layer_fog;
+ Lib3dsDistanceCue dist_cue;
+};
+
+extern LIB3DSAPI Lib3dsBool lib3ds_atmosphere_read(Lib3dsAtmosphere *atmosphere, Lib3dsIo *io);
+extern LIB3DSAPI Lib3dsBool lib3ds_atmosphere_write(Lib3dsAtmosphere *atmosphere, Lib3dsIo *io);
+
+#ifdef __cplusplus
+}
+#endif
+#endif