2 Copyright (C) 2003, 2010 - Wolfire Games
3 Copyright (C) 2010-2016 - Lugaru contributors (see AUTHORS file)
5 This file is part of Lugaru.
7 Lugaru is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 Lugaru is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with Lugaru. If not, see <http://www.gnu.org/licenses/>.
21 #include "Environment/Skybox.hpp"
25 extern float viewdistance;
26 extern float blurness;
27 extern int environment;
28 extern bool skyboxtexture;
33 void SkyBox::load(const std::string& ffront, const std::string& fleft, const std::string& fback,
34 const std::string& fright, const std::string& fup, const std::string& fdown)
36 front.load(ffront, true);
37 left.load(fleft, true);
38 back.load(fback, true);
39 right.load(fright, true);
41 down.load(fdown, true);
46 static float size = viewdistance / 4;
49 glGetFloatv(GL_MODELVIEW_MATRIX, M);
54 if (environment == desertenvironment) {
55 glScalef(1 + blurness / 1000, 1, 1 + blurness / 1000);
56 glColor3f(1 * skyboxr, .95 * skyboxg, .95 * skyboxb);
58 glColor3f(.85 * skyboxr, .85 * skyboxg, .95 * skyboxb);
62 glDisable(GL_TEXTURE_2D);
63 glColor3f(skyboxr * .8, skyboxg * .8, skyboxb * .8);
66 glDisable(GL_CULL_FACE);
68 glDisable(GL_LIGHTING);
70 glEnable(GL_TEXTURE_2D);
72 glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
74 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
75 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
77 glNormal3f(0.0f, 0.0f, -1);
79 glVertex3f(-size, -size, size);
81 glVertex3f(size, -size, size);
83 glVertex3f(size, size, size);
85 glVertex3f(-size, size, size);
88 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
89 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
91 glNormal3f(0.0f, 0.0f, 1);
93 glVertex3f(-size, -size, -size);
95 glVertex3f(-size, size, -size);
97 glVertex3f(size, size, -size);
99 glVertex3f(size, -size, -size);
102 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
103 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
105 glNormal3f(0.0f, -1.0f, 0);
107 glVertex3f(-size, size, -size);
109 glVertex3f(-size, size, size);
111 glVertex3f(size, size, size);
113 glVertex3f(size, size, -size);
116 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
117 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
119 glNormal3f(0.0f, 1.0f, 0);
122 glVertex3f(-size, -size, -size);
124 glVertex3f(size, -size, -size);
126 glVertex3f(size, -size, size);
128 glVertex3f(-size, -size, size);
131 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
132 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
134 glNormal3f(-1.0f, 0.0f, 0);
136 glVertex3f(size, -size, -size);
138 glVertex3f(size, size, -size);
140 glVertex3f(size, size, size);
142 glVertex3f(size, -size, size);
145 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
146 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
148 glNormal3f(1.0f, 0.0f, 0);
150 glVertex3f(-size, -size, -size);
152 glVertex3f(-size, -size, size);
154 glVertex3f(-size, size, size);
156 glVertex3f(-size, size, -size);
158 glEnable(GL_CULL_FACE);