3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 #include <ISceneNode.h>
23 #include "irrlichttypes_extrabloated.h"
25 #include "skyparams.h"
29 #define SKY_MATERIAL_COUNT 12
33 // Skybox, rendered with zbuffer turned off, before all other nodes.
34 class Sky : public scene::ISceneNode
38 Sky(s32 id, ITextureSource *tsrc);
40 virtual void OnRegisterSceneNode();
43 virtual void render();
45 virtual const aabb3f &getBoundingBox() const { return m_box; }
47 // Used by Irrlicht for optimizing rendering
48 virtual video::SMaterial &getMaterial(u32 i) { return m_materials[i]; }
49 virtual u32 getMaterialCount() const { return SKY_MATERIAL_COUNT; }
51 void update(float m_time_of_day, float time_brightness, float direct_brightness,
52 bool sunlight_seen, CameraMode cam_mode, float yaw, float pitch);
54 float getBrightness() { return m_brightness; }
56 const video::SColor &getBgColor() const
58 return m_visible ? m_bgcolor : m_fallback_bg_color;
61 const video::SColor &getSkyColor() const
63 return m_visible ? m_skycolor : m_fallback_bg_color;
66 void setSunVisible(bool sun_visible) { m_sun_params.visible = sun_visible; }
67 void setSunTexture(std::string sun_texture,
68 std::string sun_tonemap, ITextureSource *tsrc);
69 void setSunScale(f32 sun_scale) { m_sun_params.scale = sun_scale; }
70 void setSunriseVisible(bool glow_visible) { m_sun_params.sunrise_visible = glow_visible; }
71 void setSunriseTexture(std::string sunglow_texture, ITextureSource* tsrc);
73 void setMoonVisible(bool moon_visible) { m_moon_params.visible = moon_visible; }
74 void setMoonTexture(std::string moon_texture,
75 std::string moon_tonemap, ITextureSource *tsrc);
76 void setMoonScale(f32 moon_scale) { m_moon_params.scale = moon_scale; }
78 void setStarsVisible(bool stars_visible) { m_star_params.visible = stars_visible; }
79 void setStarCount(u16 star_count, bool force_update);
80 void setStarColor(video::SColor star_color) { m_star_params.starcolor = star_color; }
81 void setStarScale(f32 star_scale) { m_star_params.scale = star_scale; updateStars(); }
83 bool getCloudsVisible() const { return m_clouds_visible && m_clouds_enabled; }
84 const video::SColorf &getCloudColor() const { return m_cloudcolor_f; }
86 void setVisible(bool visible) { m_visible = visible; }
87 // Set only from set_sky API
88 void setCloudsEnabled(bool clouds_enabled) { m_clouds_enabled = clouds_enabled; }
89 void setFallbackBgColor(const video::SColor &fallback_bg_color)
91 m_fallback_bg_color = fallback_bg_color;
93 void overrideColors(const video::SColor &bgcolor, const video::SColor &skycolor)
96 m_skycolor = skycolor;
98 void setSkyColors(const SkyColor &sky_color);
99 void setHorizonTint(video::SColor sun_tint, video::SColor moon_tint,
100 std::string use_sun_tint);
101 void setInClouds(bool clouds) { m_in_clouds = clouds; }
102 void clearSkyboxTextures() { m_sky_params.textures.clear(); }
103 void addTextureToSkybox(std::string texture, int material_id,
104 ITextureSource *tsrc);
107 video::SMaterial m_materials[SKY_MATERIAL_COUNT];
108 // How much sun & moon transition should affect horizon color
109 float m_horizon_blend()
111 if (!m_sunlight_seen)
113 float x = m_time_of_day >= 0.5 ? (1 - m_time_of_day) * 2
118 if (x <= 0.4) // when the sun and moon are aligned
119 return (x - 0.3) * 10;
121 return (0.5 - x) * 10;
125 // Mix two colors by a given amount
126 video::SColor m_mix_scolor(video::SColor col1, video::SColor col2, f32 factor)
128 video::SColor result = video::SColor(
129 col1.getAlpha() * (1 - factor) + col2.getAlpha() * factor,
130 col1.getRed() * (1 - factor) + col2.getRed() * factor,
131 col1.getGreen() * (1 - factor) + col2.getGreen() * factor,
132 col1.getBlue() * (1 - factor) + col2.getBlue() * factor);
135 video::SColorf m_mix_scolorf(video::SColorf col1, video::SColorf col2, f32 factor)
137 video::SColorf result =
138 video::SColorf(col1.r * (1 - factor) + col2.r * factor,
139 col1.g * (1 - factor) + col2.g * factor,
140 col1.b * (1 - factor) + col2.b * factor,
141 col1.a * (1 - factor) + col2.a * factor);
145 bool m_visible = true;
146 // Used when m_visible=false
147 video::SColor m_fallback_bg_color = video::SColor(255, 255, 255, 255);
148 bool m_first_update = true;
150 float m_time_brightness;
151 bool m_sunlight_seen;
152 float m_brightness = 0.5f;
153 float m_cloud_brightness = 0.5f;
154 bool m_clouds_visible; // Whether clouds are disabled due to player underground
155 bool m_clouds_enabled = true; // Initialised to true, reset only by set_sky API
156 bool m_directional_colored_fog;
157 bool m_in_clouds = true; // Prevent duplicating bools to remember old values
159 video::SColorf m_bgcolor_bright_f = video::SColorf(1.0f, 1.0f, 1.0f, 1.0f);
160 video::SColorf m_skycolor_bright_f = video::SColorf(1.0f, 1.0f, 1.0f, 1.0f);
161 video::SColorf m_cloudcolor_bright_f = video::SColorf(1.0f, 1.0f, 1.0f, 1.0f);
162 video::SColor m_bgcolor;
163 video::SColor m_skycolor;
164 video::SColorf m_cloudcolor_f;
166 // pure white: becomes "diffuse light component" for clouds
167 video::SColorf m_cloudcolor_day_f = video::SColorf(1, 1, 1, 1);
168 // dawn-factoring version of pure white (note: R is above 1.0)
169 video::SColorf m_cloudcolor_dawn_f = video::SColorf(
175 SkyboxParams m_sky_params;
176 SunParams m_sun_params;
177 MoonParams m_moon_params;
178 StarParams m_star_params;
180 bool m_default_tint = true;
182 irr_ptr<scene::SMeshBuffer> m_stars;
184 video::ITexture *m_sun_texture;
185 video::ITexture *m_moon_texture;
186 video::ITexture *m_sun_tonemap;
187 video::ITexture *m_moon_tonemap;
190 void updateStarsColor(video::SColor color);
192 void draw_sun(video::IVideoDriver *driver, float sunsize, const video::SColor &suncolor,
193 const video::SColor &suncolor2, float wicked_time_of_day);
194 void draw_moon(video::IVideoDriver *driver, float moonsize, const video::SColor &mooncolor,
195 const video::SColor &mooncolor2, float wicked_time_of_day);
196 void draw_sky_body(std::array<video::S3DVertex, 4> &vertices,
197 float pos_1, float pos_2, const video::SColor &c);
198 void draw_stars(video::IVideoDriver *driver, float wicked_time_of_day);
199 void place_sky_body(std::array<video::S3DVertex, 4> &vertices,
200 float horizon_position, float day_position);
201 void setSkyDefaults();