Examples/Tutorial/04Textures.cpp

   1 // all needed include files
   2 #ifdef OSG_BUILD_ACTIVE
   3 #include <OSGGLUT.h>
   4 #include <OSGConfig.h>
   5 #include <OSGSimpleGeometry.h>
   6 #include <OSGGLUTWindow.h>
   7 #include <OSGSimpleSceneManager.h>
   8
   9 // these headers are need for textures and images
  10 #include <OSGSimpleTexturedMaterial.h>
  11 #include <OSGImage.h>
  12 #else
  13 #include <OpenSG/OSGGLUT.h>
  14 #include <OpenSG/OSGConfig.h>
  15 #include <OpenSG/OSGSimpleGeometry.h>
  16 #include <OpenSG/OSGGLUTWindow.h>
  17 #include <OpenSG/OSGSimpleSceneManager.h>
  18
  19 // these headers are need for textures and images
  20 #include <OpenSG/OSGSimpleTexturedMaterial.h>
  21 #include <OpenSG/OSGImage.h>
  22 #endif
  23
  24 OSG::SimpleSceneManagerRefPtr mgr;
  25 OSG::NodeRecPtr               scene;
  26
  27 int setupGLUT( int *argc, char *argv[] );
  28
  29 OSG::NodeRecPtr createScenegraph(void)
  30 {
  31     // the scene must be created here
  32
  33     //create the geometry which we will assign a texture to
  34     OSG::GeometryRecPtr boxGeo = OSG::makeBoxGeo(10,10,10,1,1,1);
  35
  36     //Load the image we want to use as a texture
  37     OSG::ImageRecPtr image = OSG::Image::create();
  38     image->read("Data/bricks.jpg");
  39
  40     //now we create the texture that will hold the image
  41     OSG::SimpleTexturedMaterialRecPtr tex =
  42         OSG::SimpleTexturedMaterial::create();
  43
  44     tex->setImage(image);
  45
  46     //now assign the fresh texture to the geometry
  47     boxGeo->setMaterial(tex);
  48
  49     // Create the node that will hold our geometry
  50     OSG::NodeRecPtr n = OSG::Node::create();
  51     n->setCore(boxGeo);
  52
  53     return OSG::NodeTransitPtr(n);
  54 }
  55
  56 int main(int argc, char **argv)
  57 {
  58     OSG::osgInit(argc,argv);
  59
  60     {
  61         int winid = setupGLUT(&argc, argv);
  62         OSG::GLUTWindowRecPtr gwin = OSG::GLUTWindow::create();
  63         gwin->setGlutId(winid);
  64         gwin->init();
  65
  66         scene = createScenegraph();
  67
  68         mgr = OSG::SimpleSceneManager::create();
  69         mgr->setWindow(gwin );
  70         mgr->setRoot  (scene);
  71         mgr->showAll();
  72
  73         OSG::commitChanges();
  74     }
  75
  76     glutMainLoop();
  77
  78     return 0;
  79 }
  80
  81 void reshape(int w, int h)
  82 {
  83     mgr->resize(w, h);
  84     glutPostRedisplay();
  85 }
  86
  87 void display(void)
  88 {
  89     mgr->redraw();
  90 }
  91
  92 void mouse(int button, int state, int x, int y)
  93 {
  94     if (state)
  95         mgr->mouseButtonRelease(button, x, y);
  96     else
  97         mgr->mouseButtonPress(button, x, y);
  98
  99     glutPostRedisplay();
 100 }
 101
 102 void motion(int x, int y)
 103 {
 104     mgr->mouseMove(x, y);
 105     glutPostRedisplay();
 106 }
 107
 108 int setupGLUT(int *argc, char *argv[])
 109 {
 110     glutInit(argc, argv);
 111     glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
 112
 113     int winid = glutCreateWindow("OpenSG First Application");
 114
 115     glutDisplayFunc(display);
 116     glutMouseFunc(mouse);
 117     glutMotionFunc(motion);
 118     glutReshapeFunc(reshape);
 119     glutIdleFunc(display);
 120
 121     return winid;
 122 }