Graphics/3D/nehe/lesson01/source/nehe1.cpp

/****************************************
 *      NDS NeHe Lesson 01              *
 *      Author: Dovoto                  *
 ****************************************/

// include your ndslib
#include <nds.h>


int DrawGLScene();

int main() {
        
    // Setup the Main screen for 3D 
    videoSetMode(MODE_0_3D);
        
    // initialize the geometry engine
    glInit();
    
    // enable antialiasing
    glEnable(GL_ANTIALIAS);
    
    // setup the rear plane
    glClearColor(0,0,0,31); // BG must be opaque for AA to work
    glClearPolyID(63); // BG must have a unique polygon ID for AA to work
    glClearDepth(0x7FFF);
    
    // Set our viewport to be the same size as the screen
    glViewport(0,0,255,191);
    
    // setup the view
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    gluPerspective(70, 256.0 / 192.0, 0.1, 100);
    
    
    //ds specific, several attributes can be set here   
    glPolyFmt(POLY_ALPHA(31) | POLY_CULL_NONE);
    
    while (1) 
    {
        // Set the current matrix to be the model matrix
        glMatrixMode(GL_MODELVIEW);
        
        glColor3f(1, 1, 1);                                 // Set the color..not in nehe source...ds gl default will be black
        
        //Push our original Matrix onto the stack (save state)
        glPushMatrix(); 

        DrawGLScene();
        
        // Pop our Matrix from the stack (restore state)
        glPopMatrix(1);

        //a handy little built in function to wait for a screen refresh
        swiWaitForVBlank();

        // flush to screen  
        glFlush(0);
    
    }
    
    return 0;
}

int DrawGLScene(void)
{
    //we are going to use floating point for the tutorial...keep in mind the DS has no
    //floating point hardware.  For real life use the built in fixed point types.
    //this is where the magic happens
    glLoadIdentity();
    return TRUE;
}