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tirengarfio

OpenGL I cant see object converted with Deep Explorer from .3ds to .cpp

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tirengarfio    133
Hello, im trying to convert a cube from .3ds to .cpp with Deep Exploration but i cant get it... The compiler doesnt give errors but then i cant see the cube anywhere... I put the cube and the "camera" at the center of the scene, so i should see it. Anyway you can move the scene with the keys a, s, d, w, q, z, i, j, k, l. This is the code:
#include <stdafx.h>
#include <glut.h>
#include <math.h>
#include <windows.h>


#include <iostream>
using namespace std;

GLint oo=0; 
double m=5;
double n=6;
double o=10;
double b=m/n;
double c=2*b;
double f=3*b;
int i=0;
double p=2;
double q=12;
double d1=(m*sqrt(p))/q;


double array[12][3]={   0,   0,       0, //posicion 0
						0,   0,       0, //1
						0,   0,       b, //2
				        0,   0,       c, //3
					    0,   0,       c, //4
				      -d1,   0,    c+d1, //5
					-2*d1,   0,  c+d1*2, //6
			        -2*d1,   0,  c+d1*2, //7 -> THIS IS THE STEP I CANT UNDERSTAND 
					  -d1,   0,  c+d1*3, //8 
						0,   0,  c+d1*4, //9
                        0,   0,  c+d1*4, //10
						0,   0,  f+d1*4}; //11



float xpos = 0, ypos = 0, zpos = 0, xrot = 0, yrot = 0, angle=0.0;


double array2[12]={    0,  //posicion inicial
					0,   //1
					0,
					0,
				  -45,   //4
				  -45,
				  -45,
				   45,   //7 -> THIS IS THE STEP I CANT NOT UNDERSTAND
				   45,   //8
				   45,
					0,
					0,   //11
};



struct sample_MATERIAL{
 GLfloat ambient[3];
 GLfloat diffuse[3];
 GLfloat specular[3];
 GLfloat emission[3];
 GLfloat alpha;
 GLfloat phExp;
 int   texture;
};

static sample_MATERIAL materials [1] = {
 {{0.117647f,0.117647f,0.117647f},	{0.752941f,0.752941f,0.752941f},	{0.301177f,0.301177f,0.301177f},	{0.0f,0.0f,0.0f},	1.0f,8.0f,-1} //Explorer Default
};

// 8 Verticies
// 4 Texture Coordinates
// 6 Normals
// 12 Triangles

static BYTE face_indicies[12][9] = {
// Box01
	{0,2,3 ,0,0,0 ,0,1,2 }, {3,1,0 ,0,0,0 ,2,3,0 }, {4,5,7 ,1,1,1 ,3,0,1 },
	{7,6,4 ,1,1,1 ,1,2,3 }, {0,1,5 ,2,2,2 ,3,0,1 }, {5,4,0 ,2,2,2 ,1,2,3 },
	{1,3,7 ,3,3,3 ,3,0,1 }, {7,5,1 ,3,3,3 ,1,2,3 }, {3,2,6 ,4,4,4 ,3,0,1 },
	{6,7,3 ,4,4,4 ,1,2,3 }, {2,0,4 ,5,5,5 ,3,0,1 }, {4,6,2 ,5,5,5 ,1,2,3 }
};
static GLfloat vertices [8][3] = {
{-0.5f,0.5f,-0.5f},{0.5f,0.5f,-0.5f},{-0.5f,0.5f,0.5f},
{0.5f,0.5f,0.5f},{-0.5f,-0.5f,-0.5f},{0.5f,-0.5f,-0.5f},
{-0.5f,-0.5f,0.5f},{0.5f,-0.5f,0.5f}
};
static GLfloat normals [6][3] = {
{0.0f,1.0f,3.17891e-008f},{0.0f,-1.0f,6.35783e-008f},{0.0f,6.35783e-008f,-1.0f},
{1.0f,0.0f,0.0f},{0.0f,-6.35783e-008f,1.0f},{-1.0f,0.0f,0.0f}
};
static GLfloat textures [4][2] = {
{1.0f,0.0f},{1.0f,1.0f},{0.0f,1.0f},
{0.0f,0.0f}
};
/*Material indicies*/
/*{material index,face count}*/
static int material_ref [1][2] = {
{0,12}
};
void MyMaterial(GLenum mode,GLfloat *f,GLfloat alpha)
{
 GLfloat d[4];
 d[0]=f[0];
 d[1]=f[1];
 d[2]=f[2];
 d[3]=alpha;
 glMaterialfv (GL_FRONT_AND_BACK,mode,d);
}
/*
 *  SelectMaterial uses OpenGL commands to define facet colors.
 *
 *  Returns:
 *    Nothing
 */

void SelectMaterial(int i)
{
  //
  // Define the reflective properties of the 3D Object faces.
  //
  glEnd();
  GLfloat alpha=materials[i].alpha;
  MyMaterial (GL_AMBIENT, materials[i].ambient,alpha);
  MyMaterial (GL_DIFFUSE, materials[i].diffuse,alpha);
  MyMaterial (GL_SPECULAR, materials[i].specular,alpha);
  MyMaterial (GL_EMISSION, materials[i].emission,alpha);
  glMaterialf (GL_FRONT_AND_BACK,GL_SHININESS,materials[i].phExp);
  glBegin(GL_TRIANGLES);

};

GLint Gen3DObjectList()
{
 int i;
 int j;

 GLint lid=glGenLists(1);
	int mcount=0;
	int mindex=0;
   glNewList(lid, GL_COMPILE);

    glBegin (GL_TRIANGLES);
      for(i=0;i<sizeof(face_indicies)/sizeof(face_indicies[0]);i++)
       {
      if(!mcount)
       {
        SelectMaterial(material_ref[mindex][0]);
        mcount=material_ref[mindex][1];
        mindex++;
       }
       mcount--;
       for(j=0;j<3;j++)
        {
          int vi=face_indicies[i][j];
          int ni=face_indicies[i][j+3];//Normal index
          int ti=face_indicies[i][j+6];//Texture index
           glNormal3f (normals[ni][0],normals[ni][1],normals[ni][2]);
           glTexCoord2f(textures[ti][0],textures[ti][1]);
           glVertex3f (vertices[vi][0],vertices[vi][1],vertices[vi][2]);
        }
       }
    glEnd ();

   glEndList();
   return lid;
};


void init (void) {

}

void enable (void) {
	glEnable (GL_DEPTH_TEST); //enable the depth testing
	//dglEnable (GL_LIGHTING); //enable the lighting
	glEnable (GL_LIGHT0); //enable LIGHT0, our Diffuse Light
	glShadeModel (GL_SMOOTH); //set the shader to smooth shader
}

void camera (void) {
		
	glTranslated(-array[i][0],-array[i][1],-array[i][2]);
	
	glRotatef(array2[i], 0.0, 1.0, 0.0);


	//translate the screen to the position of our camera
	glRotatef(xrot,1.0,0.0,0.0);  //rotate our camera on teh x-axis (left and right)
	glRotatef(yrot,0.0,1.0,0.0);  //rotate our camera on the y-axis (up and down)
	//glRotatef(zrot,0.0,0.0,1.0);  //rotate our camera on the y-axis (up and down)
	
	glTranslated(-xpos,-ypos,-zpos); //translate the screen to the position of our camera
}

void display (void) {

	glClearColor (0.0,0.0,0.0,1.0); //clear the screen to black
    glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //clear the color buffer and the depth buffer
    glLoadIdentity();  
	gluLookAt (0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 1.0, 0.0); //camera position, x,y,z, looking at x,y,z, Up Positions of the camera
	camera();
	enable();
		
	//glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
    
	oo=Gen3DObjectList();
		
	/*glBegin(GL_QUADS);           // Draw The Cube Using quads
		glColor3f(0.0f,1.0f,0.0f);     // Color Blue
		glVertex3f( 2.5f, 2.5f, 0.0f);    // Top Right Of The Quad (Top)
		glVertex3f(-2.5f, 2.5f, 0.0f);    // Top Left Of The Quad (Top)
		glVertex3f(-2.5f, 2.5f, 5.0f);    // Bottom Left Of The Quad (Top)
		glVertex3f( 2.5f, 2.5f, 5.0f);    // Bottom Right Of The Quad (Top)

		glColor3f(1.0f,0.5f,0.0f);     // Color Orange
		glVertex3f( 2.5f,-2.5f, 5.0f);    // Top Right Of The Quad (Bottom)
		glVertex3f(-2.5f,-2.5f, 5.0f);    // Top Left Of The Quad (Bottom)
		glVertex3f(-2.5f,-2.5f, 0.0f);    // Bottom Left Of The Quad (Bottom)
		glVertex3f( 2.5f,-2.5f, 0.0f);    // Bottom Right Of The Quad (Bottom)

		glColor3f(1.0f,0.0f,0.0f);     // Color Red      
		glVertex3f( 2.5f, 2.5f, 5.0f);    // Top Right Of The Quad (Front)
		glVertex3f(-2.5f, 2.5f, 5.0f);    // Top Left Of The Quad (Front)
		glVertex3f(-2.5f,-2.5f, 5.0f);    // Bottom Left Of The Quad (Front)
		glVertex3f( 2.5f,-2.5f, 5.0f);    // Bottom Right Of The Quad (Front)

		glColor3f(1.0f,1.0f,0.0f);     // Color Yellow
		glVertex3f( 2.5f,-2.5f, 0.0f);    // Top Right Of The Quad (Back)
		glVertex3f(-2.5f,-2.5f, 0.0f);    // Top Left Of The Quad (Back)
		glVertex3f(-2.5f, 2.5f, 0.0f);    // Bottom Left Of The Quad (Back)
		glVertex3f( 2.5f, 2.5f, 0.0f);    // Bottom Right Of The Quad (Back)

		glColor3f(0.0f,0.0f,1.0f);     // Color Blue
		glVertex3f(-2.5f, 2.5f, 5.0f);    // Top Right Of The Quad (Left)
		glVertex3f(-2.5f, 2.5f, 0.0f);    // Top Left Of The Quad (Left)
		glVertex3f(-2.5f,-2.5f, 0.0f);    // Bottom Left Of The Quad (Left)
		glVertex3f(-2.5f,-2.5f, 5.0f);    // Bottom Right Of The Quad (Left)

		glColor3f(1.0f,0.0f,1.0f);     // Color Violet
		glVertex3f( 2.5f, 2.5f, 0.0f);    // Top Right Of The Quad (Right)
		glVertex3f( 2.5f, 2.5f, 5.0f);    // Top Left Of The Quad (Right)
		glVertex3f( 2.5f,-2.5f, 5.0f);    // Bottom Left Of The Quad (Right)
		glVertex3f( 2.5f,-2.5f, 0.0f);    // Bottom Right Of The Quad (Right)

    glEnd();
	*/
	


	//cube(); //call the cube drawing function
	glutSwapBuffers(); //swap the buffers
	angle++; //increase the angle
}

void reshape (int w, int h) {
	glViewport (0, 0, (GLsizei)w, (GLsizei)h); //set the viewport to the current window specifications
	glMatrixMode (GL_PROJECTION); //set the matrix to projection
	glLoadIdentity ();
	gluPerspective (60, (GLfloat)w / (GLfloat)h, 0.1, 1000.0); //set the perspective (angle of sight, width, height, , depth)
	glMatrixMode (GL_MODELVIEW); //set the matrix back to model
}

void keyboard (unsigned char key, int x, int y) {
	
	
	if (key=='b')
	{		
		 	
		cout << "Posicion" << i+1 << endl;
		cout << array[i+1][0] << endl << array[i+1][1] << endl << array[i+1][2] << endl;
		cout << array2[i+1] << endl << endl;
		i++;
	}


	if (key=='q')
	{
	xrot += 1;
	cout << xrot << endl;
	if (xrot >360) xrot -= 360;
	}

	if (key=='z')
	{
	xrot -= 1;
	if (xrot < -360) xrot += 360;
	}

	if (key=='w')
	{
	zpos += 0.1;
	cout << "Zpos:" << zpos << endl;
	
	}
	
	if (key=='s')
	{
	zpos -= 0.1;
	cout << "Zpos:" << zpos << endl;
	
	}
	

	if (key=='j')
	{
	xpos += 0.1;
	cout << "Xpos:" << xpos << endl;
	}
	

	if (key=='l')
	{
	xpos -= 0.1;
	cout << "Xpos:" << xpos << endl;
	}


	if (key=='i')
	{
	ypos += 0.1;
	cout << "Ypos:" << ypos << endl;
	}
	

	if (key=='k')
	{
	ypos -= 0.1;
	cout << "Ypos:" << ypos << endl;
	}

	/*
	if (key=='w')
	{
	float xrotrad, yrotrad;
	yrotrad = (yrot / 180 * 3.141592654f);
	xrotrad = (xrot / 180 * 3.141592654f); 
	xpos += float(sin(yrotrad)) ;
	zpos -= float(cos(yrotrad)) ;
	ypos -= float(sin(xrotrad)) ;
	}

	if (key=='s')
	{
	float xrotrad, yrotrad;
	yrotrad = (yrot / 180 * 3.141592654f);
	xrotrad = (xrot / 180 * 3.141592654f); 
	xpos -= float(sin(yrotrad));
	zpos += float(cos(yrotrad)) ;
	ypos += float(sin(xrotrad));
	}
*/
	/*
	if (key=='j')
	{
	float xrotrad, yrotrad;
	yrotrad = (yrot / 180 * 3.141592654f);
	xrotrad = (xrot / 180 * 3.141592654f); 
	xpos += float(sin(yrotrad)) ;
	zpos -= float(cos(yrotrad)) ;
	ypos -= float(sin(xrotrad)) ;
	}

	if (key=='l')
	{
	float xrotrad, yrotrad;
	yrotrad = (yrot / 180 * 3.141592654f);
	xrotrad = (xrot / 180 * 3.141592654f); 
	xpos -= float(sin(yrotrad));
	zpos += float(cos(yrotrad)) ;
	ypos += float(sin(xrotrad));
	}

*/
	if (key=='d')
	{
	yrot += 1;
	if (yrot >360) yrot -= 360;
	cout << "Yrot:" << yrot << endl;
	}

	if (key=='a')
	{
	yrot -= 1;
	if (yrot < -360)yrot += 360;
	cout << "Yrot:" << yrot << endl;
	}
	
	
	if (key==27)
	{
	exit(0);
	}
}

int main (int argc, char **argv) {
    glutInit (&argc, argv);
	glutInitDisplayMode (GLUT_DOUBLE | GLUT_DEPTH); //set the display to Double buffer, with depth
	glutInitWindowSize (500, 500); //set the window size
	glutInitWindowPosition (100, 100); //set the position of the window
    glutCreateWindow ("A basic OpenGL Window"); //the caption of the window
	init (); //call the init function
    glutDisplayFunc (display); //use the display function to draw everything
	glutIdleFunc (display); //update any variables in display, display can be changed to anyhing, as long as you move the variables to be updated, in this case, angle++;
	glutReshapeFunc (reshape); //reshape the window accordingly
	glutKeyboardFunc (keyboard); //check the keyboard
    glutMainLoop (); //call the main loop
    return 0;
}



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tirengarfio    133
Quote:
Original post by nemesisgeek


I dont have any problem to see other cube i made "by hand".

Quote:
Original post by nemesisgeek
Is your material color set to something besides black?


I have changed the value of glclearcolor but i cant still see anything...

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nemesisgeek    139
Try rendering it as GL_POINTS with GL_LIGHTING, GL_CULL_FACE, and GL_TEXTURE_2D set to off. Make sure to use glColor() to set the color to white or something else visible, not the default black.

You might also want to try setting glPolygonMode(GL_FRONT_AND_BACK,GL_LINE) in order to force wireframe display.

If that still doesn't work, e-mail your code to webmaster@t104.org and I'll see if I can see anything.

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tirengarfio    133
anyway, someone who show me a simple 3ds->opengl convertion sample (with a cube for example)?

Can say me also the app you use to convert and the opengl code with the object inserted?

[Edited by - tirengarfio on March 7, 2007 5:15:09 AM]

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