/usr/include/simgear/scene/sky/newcloud.hxx is in libsimgear-dev 3.0.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 | // 3D cloud class
//
// Written by Harald JOHNSEN, started April 2005.
//
// Copyright (C) 2005 Harald JOHNSEN - hjohnsen@evc.net
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//
#ifndef _NEWCLOUD_HXX
#define _NEWCLOUD_HXX
#include <simgear/compiler.h>
#include <string>
#include <vector>
#include <osg/Fog>
#include <simgear/math/sg_random.h>
#include <simgear/scene/material/Effect.hxx>
#include <simgear/scene/material/EffectGeode.hxx>
using std::string;
using std::vector;
/**
* 3D cloud class.
*/
class SGNewCloud {
public:
SGNewCloud(const SGPath &texture_root, const SGPropertyNode *cld_def, mt* s);
~SGNewCloud();
// Generate a Cloud
osg::ref_ptr<simgear::EffectGeode> genCloud ();
static float getDensity(void)
{
return sprite_density;
}
// Set the sprite density
static void setDensity(double d)
{
sprite_density = d;
}
private:
float min_width;
float max_width;
float min_height;
float max_height;
float min_sprite_width;
float max_sprite_width;
float min_sprite_height;
float max_sprite_height;
// Minimum and maximum bottom, middle, top, sunny, shade lighting
// factors. For individual clouds we choose a bottom/middle/top
// shade from between each min/max value
float min_bottom_lighting_factor;
float max_bottom_lighting_factor;
float min_middle_lighting_factor;
float max_middle_lighting_factor;
float min_top_lighting_factor;
float max_top_lighting_factor;
float min_shade_lighting_factor;
float max_shade_lighting_factor;
// The density of the cloud is the shading applied
// to cloud sprites on the opposite side of the cloud
// from the sun. For an individual cloud instance a value
// between min_density and max_density is chosen.
float min_density;
float max_density;
// zscale indicates how sprites should be scaled vertically
// after billboarding.
float zscale;
bool height_map_texture;
int num_sprites;
int num_textures_x;
int num_textures_y;
string texture;
osg::Geometry* quad;
osg::ref_ptr<simgear::Effect> effect;
static float sprite_density;
// RNG seed for this cloud
mt* seed;
osg::Geometry* createOrthQuad(float w, float h, int varieties_x, int varieties_y);
};
#endif // _NEWCLOUD_HXX
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