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Débutant
Inscription: 11 Juil 2007 23:36
Messages: 4
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Bonjour à tous, nouveau sur nintendomax, nouveau dans la dev nds, bref je patoge un peu... En attendant de comprendre le fonctionnement de GL_FOG et POLY_FOG, j'ai voulu simuler mon ch'tit brouillard avec plusieurs plans transparents... Mon problème: -le .nds fonctionne sur l'émulateur iDeaS -il ne fonctionne pas sur ma DS (avec R4) voici le code librement adapté de l'exemples No8 de Nehe: (il faut juste récupérer le makefile et le répertoire /data de cet exemple et ca devrait le faire) Code: #include <nds.h>
#include <malloc.h>
//needed to load pcx files
#include <nds/arm9/image.h>
#include "drunkenlogo_pcx.h"
int DrawGLScene();
int atmo = 1;
GLfloat z=-5.0f; // Depth Into The Screen
GLfloat xrot;
GLfloat yrot;
GLfloat LightAmbient[]= { 0.5f, 0.5f, 0.5f, 1.0f };
GLfloat LightDiffuse[]= { 1.0f, 1.0f, 1.0f, 1.0f };
GLfloat LightPosition[]= { 0.0f, 0.0f, 2.0f, 1.0f };
int texture[3]; // Storage For 3 Textures (only going to use 1 on the DS for this demo)
int LoadGLTextures() // Load PCX files And Convert To Textures
{
sImage pcx;
//load our texture
loadPCX((u8*)drunkenlogo_pcx, &pcx);
image8to16(&pcx);
//DS supports no filtering of anykind so no need for more than one texture
glGenTextures(1, &texture[0]);
glBindTexture(0, texture[0]);
glTexImage2D(0, 0, GL_RGB, TEXTURE_SIZE_128 , TEXTURE_SIZE_128, 0, TEXGEN_TEXCOORD, pcx.image.data8);
imageDestroy(&pcx);
return TRUE;
}
int main()
{
// Turn on everything
powerON(POWER_ALL);
// Setup the Main screen for 3D
videoSetMode(MODE_0_3D);
vramSetBankA(VRAM_A_TEXTURE); //NEW must set up some memory for textures
// IRQ basic setup
irqInit();
irqSet(IRQ_VBLANK, 0);
// initialize the geometry engine
glInit();
// enable textures
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glEnable(GL_FOG);
// enable antialiasing
glEnable(GL_ANTIALIAS);
// setup the rear plane
glClearColor(21,22,31,31); // 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);
LoadGLTextures();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(35, 256.0 / 192.0, 0.1, 100);
//set up a directional ligth arguments are light number (0-3), light color,
//and an x,y,z vector that points in the direction of the light
glLight(0, RGB15(31,31,31) , 0, floattov10(-1.0), 0);
glColor3f(1,1,1);
glMatrixMode(GL_MODELVIEW);
//need to set up some material properties since DS does not have them set by default
glMaterialf(GL_AMBIENT, RGB15(16,16,16));
glMaterialf(GL_DIFFUSE, RGB15(16,16,16));
glMaterialf(GL_SPECULAR, BIT(15) | RGB15(8,8,8));
glMaterialf(GL_EMISSION, RGB15(16,16,16));
//ds uses a table for shinyness..this generates a half-ass one
glMaterialShinyness();
// Set the current matrix to be the model matrix
glMatrixMode(GL_MODELVIEW);
while (1)
{
//these little button functions are pretty handy
scanKeys();
if (keysHeld() & KEY_UP)
{
z-=0.1f;
}
if (keysHeld() & KEY_DOWN)
{
z+=0.1f;
}
if (keysHeld() & KEY_L) atmo = 0;
if (keysHeld() & KEY_R) atmo = 1;
DrawGLScene();
// flush to screen
glFlush(0);
// wait for the screen to refresh
swiWaitForVBlank();
}
return 0;
}
int DrawGLScene() // Here's Where We Do All The Drawing
{
glLoadIdentity(); // Reset The View
glTranslatef(0.0f,0.0f,z);
glRotatef(xrot,1.0f,0.0f,0.0f);
glRotatef(yrot,0.0f,1.0f,0.0f);
glPolyFmt(POLY_ALPHA(31) | POLY_CULL_NONE | POLY_FORMAT_LIGHT0 | POLY_FOG);
glBindTexture(GL_TEXTURE_2D, texture[0]); //no filters to swtich between
glBegin(GL_QUADS);
glColor3b(31,31,31);
// Front Face
glNormal3f( 0.0f, 0.0f, 1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
// Back Face
glNormal3f( 0.0f, 0.0f,-1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
// Top Face
glNormal3f( 0.0f, 1.0f, 0.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
// Bottom Face
glNormal3f( 0.0f,-1.0f, 0.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
// Right face
glNormal3f( 1.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
// Left Face
glNormal3f(-1.0f, 0.0f, 0.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
glEnd();
if(atmo==1) {
//draw atmosphere
glLoadIdentity();
glTranslatef(0.0f,0.0f,-5.0f);
glPolyFmt(POLY_ALPHA(5) | POLY_CULL_NONE | POLY_FORMAT_LIGHT0);
glBegin(GL_QUADS);
glNormal3f( 0.0f, 0.0f, 1.0f);
//glColor3b(31,31,31);
glTexCoord2f(0.5f, 0.6f); //have a white pixel
glVertex3f( -6.0f, -4.0f, -1.0f);
glVertex3f( -6.0f, 4.0f, -1.0f);
glVertex3f( 6.0f, 4.0f, -1.0f);
glVertex3f( 6.0f, -4.0f, -1.0f);
glVertex3f( -5.0f, -3.5f, -0.0f);
glVertex3f( -5.0f, 3.5f, -0.0f);
glVertex3f( 5.0f, 3.5f, -0.0f);
glVertex3f( 5.0f, -3.5f, -0.0f);
glVertex3f( -4.0f, -3.0f, 1.0f);
glVertex3f( -4.0f, 3.0f, 1.0f);
glVertex3f( 4.0f, 3.0f, 1.0f);
glVertex3f( 4.0f, -3.0f, 1.0f);
glVertex3f( -3.0f, -2.2f, 2.0f);
glVertex3f( -3.0f, 2.2f, 2.0f);
glVertex3f( 3.0f, 2.2f, 2.0f);
glVertex3f( 3.0f, -2.2f, 2.0f);
glEnd();
}
xrot +=1.0f;
yrot +=2.0f;
return TRUE;
}
Voilou... Je n'arrive pas comprendre ce qui va de travers... le code? le R4? la DS? Si quelqu'un pouvait éclairer ma lanterne, ca me sortirait du brouillard dans lequel je suis  Merci d'avance!
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