git.mutantstargoat.com Git - safbench/blob - skybox1.cpp

   1 // License information.
   2 // The Software "SAF BENCH" was written by Patrik.A, also known as Nitton Attiofyra
   3 // on YouTube. (https://www.youtube.com/@NittonAttiofyra)
   4
   5 // The software is released in to the Public Domain and comes with no warranty and is used
   6 // at your own risk!
   7
   8 #include <stdlib.h> // VS 2005 wont compile it if its noth placed here, need to investigate
   9 #ifdef macintosh
  10 #include <glut.h>
  11 #include <gl.h>
  12 #include <glu.h>
  13 #else
  14 #include <GL/glut.h>
  15 #include <GL/gl.h>
  16 #include <GL/glu.h>
  17 #endif
  18 #include <iostream>
  19 #include "bmp_alpha.h"
  20 #include "skybox1.h"
  21
  22 #define for if(0);else for      // C2374 VC6++ on Alpha bug
  23
  24 static GLuint texture_sky1;
  25
  26
  27 void textures_skybox1()
  28 {
  29 #ifdef macintosh
  30         texture_sky1 = LoadTexture(":textures:runway:sky1.bmp" , 256, 256);
  31 #else
  32         texture_sky1 = LoadTexture("textures/runway/sky1.bmp" , 256, 256);
  33 #endif
  34 }
  35
  36 void skybox1()
  37 {
  38         glDisable(GL_LIGHTING);
  39         glDisable(GL_LIGHT0);
  40
  41         // enable blending
  42         //      glEnable(GL_BLEND);
  43
  44         // Enable culling. Remove one side of the polygons, back or front.
  45         glEnable(GL_CULL_FACE);
  46         glCullFace(GL_BACK);
  47
  48         //draw texture
  49         glBindTexture( GL_TEXTURE_2D, texture_sky1 );
  50         glEnable(GL_TEXTURE_2D);
  51         //      glDepthMask(GL_FALSE);
  52         //      glDisable(GL_DEPTH_TEST);
  53
  54         // left side of skybox relative to start of demo
  55         glBegin(GL_QUADS);
  56         glTexCoord2f(.005,.995);glVertex3f(-800, 700, -800);
  57         glTexCoord2f(.995,.995);glVertex3f(-800, 700, 800);
  58         glTexCoord2f(.995,.005);glVertex3f(-800, -5, 800);
  59         glTexCoord2f(0,.005);glVertex3f(-800, -5, -800);
  60         glEnd();
  61
  62         //front side of skybox realtive to start of demo
  63         glBegin(GL_QUADS);
  64         glTexCoord2f(0,.005);glVertex3f(-800, -5, -800);
  65         glTexCoord2f(.995,.005);glVertex3f(800, -5, -800);
  66         glTexCoord2f(.995,.995);glVertex3f(800, 700, -800);
  67         glTexCoord2f(.005,.995);glVertex3f(-800, 700, -800);
  68         glEnd();
  69
  70         // right side of skybox relative to start of demo
  71         glBegin(GL_QUADS);
  72         glTexCoord2f(0,.005);glVertex3f(800, -5, -800);
  73         glTexCoord2f(.995,.005);glVertex3f(800, -5, 800);
  74         glTexCoord2f(.995,.995);glVertex3f(800, 700, 800);
  75         glTexCoord2f(.005,.995);glVertex3f(800, 700, -800);
  76         glEnd();
  77
  78         //rear side of skybox realtive to start of demo
  79         glBegin(GL_QUADS);
  80         glTexCoord2f(.005,.995);glVertex3f(-800, 700, 800);
  81         glTexCoord2f(.995,.995);glVertex3f(800, 700, 800);
  82         glTexCoord2f(.995,.005);glVertex3f(800, -5, 800);
  83         glTexCoord2f(0,.005);glVertex3f(-800, -5, 800);
  84         glEnd();
  85
  86         //      glDepthMask(GL_TRUE);
  87         //      glEnable(GL_DEPTH_TEST);
  88
  89         // disable texture
  90         glDisable(GL_TEXTURE_2D);
  91
  92         // disable culling
  93         glDisable(GL_CULL_FACE);
  94
  95         // disable blending
  96         //      glDisable (GL_BLEND);
  97
  98         glEnable(GL_LIGHTING);
  99         glEnable(GL_LIGHT0);
 100
 101 }