openGL + lib3ds

[revaldo666]

Hello all. I have simple code for load and display .3ds model, but he dont load 2 or more models.
Help how load more models in scene.
this my code

#include <windows.h>
#include <gl/gl.h>
#include <gl/glu.h>
#include <gl/glut.h>
#include "lib3ds.h"
#include <iostream>
typedef float Lib3dsVector[3];
typedef float Lib3dsTexel[2];
using namespace std;
Lib3dsFile* model;
Lib3dsMesh** mesh;
Lib3dsCamera** camera;
Lib3dsFace* face;
Lib3dsLight** light;
Lib3dsMaterial** material;
float rotat=0;
GLuint vertexVBO,normalVBO,textureVBO;
unsigned long total_face;
void lightup()
{
    glShadeModel(GL_SMOOTH);
    glEnable(GL_DEPTH_TEST);
    glEnable(GL_CULL_FACE);
    glFrontFace(GL_CCW);
    float gambient[]={0.2,0.2,0.2,1.0};
    float lightpos[]={1.0,1.0,1.0,0.0};
    float lambient[]={1.0,1.0,1.0,1.0};
    float ldiffuse[]={0.8,0.8,0.8,1.0};
    float lspecular[]={0.3,0.3,0.3,1.0};
    glLightfv(GL_LIGHT0,GL_DIFFUSE,ldiffuse);
    glLightfv(GL_LIGHT0,GL_AMBIENT,lambient);
    glLightfv(GL_LIGHT0,GL_SPECULAR,lspecular);
    glLightfv(GL_LIGHT0,GL_POSITION,lightpos);
    glLightModelfv(GL_LIGHT_MODEL_AMBIENT,gambient);
    glEnable(GL_LIGHTING);
    glEnable(GL_LIGHT0);
}
void getfaces()
{
    total_face=0;
    for(long meshcount=0;meshcount<model->nmeshes;meshcount++)
        total_face+=mesh[meshcount]->nfaces;
}
 
void display()
{
    glEnable(GL_DEPTH_TEST);
    glDepthFunc(GL_LEQUAL);
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BITS);
    glLoadIdentity();
    glPushMatrix();
    lightup();
    glScalef(0.5,0.5,0.5);
    glTranslatef(0.0,-1000.0,-2500.0);
	glRotatef(280, 1, 0, 0);
	glRotatef(rotat, 0, 0, 1);
    long meshcount;
    for(meshcount=0;meshcount<model->nmeshes;meshcount++)
    {
        face=mesh[meshcount]->faces;
        for(long i=0;i<mesh[meshcount]->nfaces;i++)
        {
            glMaterialfv(GL_FRONT,GL_DIFFUSE,material[face[i].material]->diffuse);
            glMaterialfv(GL_FRONT,GL_AMBIENT,material[face[i].material]->ambient);
            glMaterialfv(GL_FRONT,GL_SPECULAR,material[face[i].material]->specular);
            glBegin(GL_TRIANGLES);
			glColor3f(50.0,100.0,0.0);
            glVertex3fv(mesh[meshcount]->vertices[face[i].index[0]]);
            glVertex3fv(mesh[meshcount]->vertices[face[i].index[1]]);
            glVertex3fv(mesh[meshcount]->vertices[face[i].index[2]]);
            glEnd();
        }
    }
    glPopMatrix();
    glutSwapBuffers();
}
static void Timer(int value)
{
    rotat+=1.0f;
	if(rotat>=360)
		rotat=0;
    glutPostRedisplay();
    glutTimerFunc(30, Timer, 0);
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	glLoadIdentity();
}
 
void keypress(unsigned char key,int x,int y)
{
    switch(key)
    {
    case 27:
        exit(0);
        break;
    }
}
void reshape(int w,int h)
{
    if(h==0) h=1;
    glViewport(0,0,w,h);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    gluPerspective(45.0,w/h,0.0,1000.0);
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();
}
int main(int argc,char* argv[])
{
    glutInit(&argc,argv);
    model=lib3ds_file_open("torce.3DS");
    if(model==NULL) cout<<"Error"<<endl; else cout<<model->nmaterials<<endl;
    mesh=model->meshes;
    material=model->materials;
    camera=model->cameras;
    light=model->lights;
    cout<<"Light Num:"<<model->nlights<<endl;
    glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE|GLUT_DEPTH);
    glutInitWindowSize(800,800);
    glutInitWindowPosition(100,100);
    glutCreateWindow("VC 2008 Glut");
	glClearColor(0.0, 0.0, 0.0, 0.0);
    glClearDepth(1.0);
    glShadeModel(GL_FLAT);
    glutKeyboardFunc(keypress);
    glutDisplayFunc(display);
    glutReshapeFunc(reshape);
	Timer(0);
    glutMainLoop();
    return 0;
}

[V-man]

Make an array of Lib3dsFile.

Lib3dsFile** model;
*model=new Lib3dsFile*[5];
model[0]=lib3ds_file_open("thing0.3DS");
model[1]=lib3ds_file_open("thing1.3DS");
model[2]=lib3ds_file_open("thing2.3DS");
model[3]=lib3ds_file_open("thing3.3DS");
model[4]=lib3ds_file_open("thing4.3DS");

or if you don't like using "new", use the vector class from std.

[revaldo666]

thx, its work.

but i have any question.
I loaded many models on scene, how save this models in one .3ds file.
Function lib3ds_file_save taked one parametr type Lib3dsFile, if i saved model that saved only one object becouse file owerwrited every time wen i called function.