[7504] | 1 | /* |
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| 2 | orxonox - the future of 3D-vertical-scrollers |
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| 3 | |
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| 4 | Copyright (C) 2004 orx |
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| 5 | |
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| 6 | This program is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 2, or (at your option) |
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| 9 | any later version. |
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| 10 | |
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| 11 | ### File Specific: |
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| 12 | main-programmer: hdavid, amaechler |
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| 13 | */ |
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| 14 | |
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| 15 | #include "volfog_effect.h" |
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| 16 | |
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| 17 | #include "util/loading/load_param.h" |
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| 18 | #include "util/loading/factory.h" |
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| 19 | |
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| 20 | #include "glincl.h" |
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| 21 | #include "shell_command.h" |
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| 22 | |
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| 23 | using namespace std; |
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| 24 | |
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| 25 | CREATE_FACTORY(VolFogEffect, CL_VOLFOG_EFFECT); |
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| 26 | |
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| 27 | VolFogEffect::VolFogEffect(const TiXmlElement* root) |
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| 28 | { |
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| 29 | this->setClassID(CL_VOLFOG_EFFECT, "VolFogEffect"); |
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| 30 | |
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| 31 | if (root != NULL) |
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| 32 | this->loadParams(root); |
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[7532] | 33 | |
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[7557] | 34 | // Initialize Effect |
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[7546] | 35 | this->init(); |
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| 36 | |
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[7557] | 37 | // Activate Effect |
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[7504] | 38 | this->activate(); |
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| 39 | } |
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| 40 | |
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| 41 | |
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[7516] | 42 | VolFogEffect::~VolFogEffect() |
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[7504] | 43 | { |
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| 44 | this->deactivate(); |
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| 45 | } |
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| 46 | |
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| 47 | void VolFogEffect::loadParams(const TiXmlElement* root) |
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| 48 | { |
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| 49 | WeatherEffect::loadParams(root); |
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| 50 | } |
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| 51 | |
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| 52 | bool VolFogEffect::init() |
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[7520] | 53 | { |
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[7523] | 54 | PRINTF(0)("Initalize VolFogEffect\n"); |
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[7568] | 55 | |
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| 56 | if (glewInit() == GLEW_OK) |
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| 57 | PRINTF(0)("glewInit OK\n"); |
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| 58 | else |
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| 59 | PRINTF(0)("glewInit failed\n"); |
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[7504] | 60 | |
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[7557] | 61 | // Set fog color |
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[7558] | 62 | float fogColor[4] = {0.2, 0.2, 0.2, 1.0}; |
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[7504] | 63 | |
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[7557] | 64 | /* set up fog params */ |
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| 65 | glEnable(GL_FOG); // Enable Fog |
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| 66 | glFogi(GL_FOG_MODE, GL_LINEAR); // Fog Fade Is Linear |
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| 67 | glFogfv(GL_FOG_COLOR, fogColor); // Set The Fog Color |
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| 68 | glFogf(GL_FOG_START, 0.0f); // Set The Fog Start |
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[7561] | 69 | glFogf(GL_FOG_END, 10.0f); // Set The Fog End |
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| 70 | glFogi(GL_FOG_COORDINATE_SOURCE_EXT, GL_FOG_COORDINATE_EXT); // Set The Fog based on vertice coordinates |
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[7557] | 71 | // glHint(GL_FOG_HINT, GL_NICEST); // Per-Pixel Fog Calculation |
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| 72 | |
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[7561] | 73 | // glClearColor(0.0, 0.0, 0.0, 1.0); //sets bg color?! |
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| 74 | |
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[7557] | 75 | /* enable texturing & set texturing function */ |
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[7558] | 76 | // glEnable(GL_TEXTURE_2D); |
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| 77 | // glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); |
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[7557] | 78 | |
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[7568] | 79 | if (glewGetExtension("GL_EXT_fog_coord")) |
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[7546] | 80 | { |
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[7568] | 81 | PRINTF(0)("GL_EXT_fog_coord extension found\n"); |
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| 82 | return true; |
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[7546] | 83 | } |
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[7568] | 84 | else |
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| 85 | { |
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| 86 | PRINTF(0)("GL_EXT_fog_coord extension NOT found\n"); |
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| 87 | return false; |
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| 88 | } |
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[7546] | 89 | } |
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| 90 | |
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| 91 | |
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[7504] | 92 | bool VolFogEffect::activate() |
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| 93 | { |
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[7546] | 94 | PRINTF(0)("Activating VolFogEffect\n"); |
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[7504] | 95 | } |
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| 96 | |
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| 97 | bool VolFogEffect::deactivate() |
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| 98 | { |
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[7546] | 99 | PRINTF(0)("Deactivating VolFogEffect\n"); |
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[7504] | 100 | } |
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| 101 | |
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[7520] | 102 | |
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[7516] | 103 | /** |
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| 104 | * draws the effect, if needed |
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| 105 | */ |
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| 106 | void VolFogEffect::draw() const |
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[7519] | 107 | { |
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[7557] | 108 | //glPushAttrib(GL_ENABLE_BIT); |
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| 109 | |
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| 110 | /* clear all pixels in colour buffer */ |
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| 111 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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[7530] | 112 | |
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[7568] | 113 | //glEnable(GL_BLEND); |
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| 114 | //glBlendFunc(GL_SRC_ALPHA, GL_DST_ALPHA); |
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[7558] | 115 | |
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[7557] | 116 | //glLoadIdentity (); // Reset The Modelview Matrix |
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[7520] | 117 | |
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[7557] | 118 | // glBindTexture(GL_TEXTURE_2D, 0); |
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| 119 | /* draw the panels */ |
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| 120 | glBegin(GL_QUADS); // Floor |
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| 121 | glFogCoordfEXT(0.0f); glVertex3f(0.0f,0.0f,0.0f); |
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| 122 | glFogCoordfEXT(0.0f); glVertex3f(100.0f,0.0f,0.0f); |
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| 123 | glFogCoordfEXT(0.0f); glVertex3f(100.0f,0.0f, 100.0f); |
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| 124 | glFogCoordfEXT(0.0f); glVertex3f(0.0f,0.0f, 100.0f); |
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| 125 | glEnd(); |
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[7520] | 126 | |
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[7557] | 127 | glBegin(GL_QUADS); // Roof |
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[7558] | 128 | glFogCoordfEXT(5.0f); glVertex3f(0.0f, 100.0f,0.0f); |
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| 129 | glFogCoordfEXT(5.0f); glVertex3f( 100.0f, 100.0f,0.0f); |
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| 130 | glFogCoordfEXT(5.0f); glVertex3f( 100.0f, 100.0f, 100.0f); |
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| 131 | glFogCoordfEXT(5.0f); glVertex3f(0.0f, 100.0f, 100.0f); |
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[7557] | 132 | glEnd(); |
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[7520] | 133 | |
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[7557] | 134 | glBegin(GL_QUADS); // Back Wall |
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| 135 | glFogCoordfEXT(0.0f); glVertex3f(0.0f,0.0f,0.0f); |
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| 136 | glFogCoordfEXT(0.0f); glVertex3f( 100.0f,0.0f,0.0f); |
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[7558] | 137 | glFogCoordfEXT(5.0f); glVertex3f( 100.0f, 100.0f,0.0f); |
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| 138 | glFogCoordfEXT(5.0f); glVertex3f(0.0f, 100.0f,0.0f); |
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[7557] | 139 | glEnd(); |
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[7520] | 140 | |
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[7557] | 141 | glBegin(GL_QUADS); // Front Wall |
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[7558] | 142 | glFogCoordfEXT(0.0f); glVertex3f(0.0f,0.0f,100.0f); |
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[7557] | 143 | glFogCoordfEXT(0.0f); glVertex3f( 100.0f,0.0f,100.0f); |
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[7561] | 144 | glFogCoordfEXT(50.0f); glVertex3f( 100.0f, 100.0f,100.0f); |
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| 145 | glFogCoordfEXT(50.0f); glVertex3f(0.0f, 100.0f,100.0f); |
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[7557] | 146 | glEnd(); |
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[7546] | 147 | |
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[7557] | 148 | glBegin(GL_QUADS); // Right Wall |
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| 149 | glFogCoordfEXT(0.0f); glVertex3f( 100.0f,0.0f, 100.0f); |
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[7558] | 150 | glFogCoordfEXT(5.0f); glVertex3f( 100.0f, 100.0f, 100.0f); |
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| 151 | glFogCoordfEXT(5.0f); glVertex3f( 100.0f, 100.0f,0.0f); |
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[7557] | 152 | glFogCoordfEXT(0.0f); glVertex3f( 100.0f,0.0f,0.0f); |
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| 153 | glEnd(); |
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[7546] | 154 | |
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[7557] | 155 | glBegin(GL_QUADS); // Left Wall |
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| 156 | glFogCoordfEXT(0.0f); glVertex3f(0.0f,0.0f, 100.0f); |
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| 157 | glFogCoordfEXT(5.0f); glVertex3f(0.0f, 100.0f, 100.0f); |
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| 158 | glFogCoordfEXT(5.0f); glVertex3f(0.0f, 100.0f,0.0f); |
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| 159 | glFogCoordfEXT(0.0f); glVertex3f(0.0f,0.0f,0.0f); |
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| 160 | glEnd(); |
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| 161 | |
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| 162 | /* process all buffered OpenGL commands */ |
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| 163 | glFlush(); |
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[7546] | 164 | |
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[7557] | 165 | // glPopAttrib(); |
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| 166 | } |
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[7546] | 167 | |
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| 168 | |
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[7516] | 169 | /** |
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| 170 | * ticks the effect if there is any time dependancy |
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| 171 | */ |
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[7519] | 172 | void VolFogEffect::tick(float dt) |
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| 173 | { |
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| 174 | } |
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