application fonctionnant sur le simulateur mais pas dans l'ipad ..!

Question

A'm coincé avec un problème très étrange ..... vraiment je ne sais pas comment sortir avec ça .. !!

Je développe une application iPad dans laquelle je dessine un cube 3d avec programmation openGL pour ipad .... Tout va bien .... J'ai dessiné le cube et l'ai aussi colorié avec des couleurs différentes .... Tout cela choses que j'ai testées sur simulateur, tout est génial. Mais quand j'ai essayé de tester sur iPad, mon cube est en train d'être dessiné mais la partie colorante ne fonctionne pas ... !!!

Merci d'avance pour votre aide .. !!

Answer 1

MISE À JOUR: Mon exemple de code

MyViewController.h

CubeView *cubeView; 

---

MyViewController.m

cubeView = [[CubeView alloc] initWithFrame:CGRectMake(250, 60, 450, 600)]; 
    cubeView.multipleTouchEnabled = YES; 
    cubeView.backgroundColor = [UIColor clearColor]; 

    [self.view addSubview:cubeView]; 

---

CubeView.m

- (id)initWithCoder:(NSCoder*)coder 
{  
    if ((self = [super initWithCoder:coder])) 
    { 

     // Get the layer 
     CAEAGLLayer *eaglLayer = (CAEAGLLayer *)self.layer; 

     eaglLayer.opaque = TRUE; 
     eaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys: 
             [NSNumber numberWithBool:FALSE], kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGBA8, kEAGLDrawablePropertyColorFormat, nil]; 

     [self setMultipleTouchEnabled:YES]; 
//  self.frame = CGRectMake(20, 30, 500, 500); 
     renderer = nil; 
     if (!renderer) 
     { 
      renderer = [[CubeRenderer alloc] init]; 

      if (!renderer) 
      { 
       [self release]; 
       return nil; 
      } 
     } 

    } 

    return self; 
} 

- (id)initWithFrame:(CGRect)frame { 
    if ((self = [super initWithFrame:frame])) { 
     // Get the layer 
     CAEAGLLayer *eaglLayer = (CAEAGLLayer *)self.layer; 

     eaglLayer.opaque = TRUE; 
     eaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys: 
             [NSNumber numberWithBool:FALSE], kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGBA8, kEAGLDrawablePropertyColorFormat, nil]; 
     [self setMultipleTouchEnabled:YES]; 
     renderer = nil; 
     if (!renderer) 
     { 
      renderer = [[CubeRenderer alloc] init]; 

      if (!renderer) 
      { 
       [self release]; 
       return nil; 
      } 
     } 

    } 
    return self; 
} 

---

CubeRenderer.m

- (id)init 
{ 
    if ((self = [super init])) 
    { 
     context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES1]; 

     if (!context || ![EAGLContext setCurrentContext:context]) 
     { 
      [self release]; 
      return nil; 
     } 

     currentCalculatedMatrix = CATransform3DIdentity; 

     // Create default framebuffer object. The backing will be allocated for the current layer in -resizeFromLayer 
     glGenFramebuffersOES(1, &defaultFramebuffer); 
     glGenRenderbuffersOES(1, &colorRenderbuffer); 
     glBindFramebufferOES(GL_FRAMEBUFFER_OES, defaultFramebuffer); 
     glBindRenderbufferOES(GL_RENDERBUFFER_OES, colorRenderbuffer); 
     glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, colorRenderbuffer); 

    } 

    return self; 
} 

    static const GLfloat cubeVertices[] = { 

     -1.0, -1.0, 1.0, 
     1.0, -1.0, 1.0, 
     1.0, 1.0, 1.0, 
     -1.0, 1.0, 1.0, 

     -1.0, -1.0, -1.0, 
     1.0, -1.0, -1.0, 
     1.0, 1.0, -1.0, 
     -1.0, 1.0, -1.0, 
    }; 

    static const GLushort cubeIndicesFaceFront[] = { 
     0, 1, 2, 3, 0 
    }; 

    static const GLushort cubeIndicesFaceBack[] = { 
     4, 5, 6, 7, 4 
    }; 

    static const GLushort cubeIndicesFaceLeft[] = { 
     0, 4, 7, 3, 0 
    }; 

    static const GLushort cubeIndicesFaceRight[] = { 
     1, 5, 6, 2, 1 
    }; 

    static const GLushort cubeIndicesFaceTop[] = { 
     3, 2, 6, 7, 3 
    }; 

    static const GLushort cubeIndicesFaceBottom[] = { 
     0, 1, 5, 4, 0 
    }; 


    [EAGLContext setCurrentContext:context]; 


    glMatrixMode(GL_PROJECTION); 
    glLoadIdentity(); 
     glOrthof(-2.0, 2.0, -2.0 * 480.0/320.0, 2.0 * 480.0/320.0, -3.0, 3.0); 


     glMatrixMode(GL_MODELVIEW); 

    glClear(GL_COLOR_BUFFER_BIT); 

    glVertexPointer(3, GL_FLOAT, 0, cubeVertices); 
    glEnableClientState(GL_VERTEX_ARRAY); 


     glColorPointer(4, GL_UNSIGNED_BYTE, 0, cubeColorsBlueFace); 
    glEnableClientState(GL_COLOR_ARRAY); 
     glDrawElements(GL_TRIANGLE_FAN, 5, GL_UNSIGNED_SHORT, cubeIndicesFaceFront); 
     //glDrawElements(GL_TRIANGLE_STRIP, 5, GL_UNSIGNED_SHORT, cubeIndicesFaceFront); 

     glColorPointer(4, GL_UNSIGNED_BYTE, 0, cubeFillColorsFaceBack); 
    glEnableClientState(GL_COLOR_ARRAY); 
     glDrawElements(GL_TRIANGLE_FAN, 5, GL_UNSIGNED_SHORT, cubeIndicesFaceBack); 
     //glDrawElements(GL_TRIANGLE_STRIP, 5, GL_UNSIGNED_SHORT, cubeIndicesFaceBack); 

     glColorPointer(4, GL_UNSIGNED_BYTE, 0, cubeFillColorsFaceLeft); 
    glEnableClientState(GL_COLOR_ARRAY); 
     glDrawElements(GL_TRIANGLE_FAN, 5, GL_UNSIGNED_SHORT, cubeIndicesFaceLeft); 
     //glDrawElements(GL_TRIANGLE_STRIP, 5, GL_UNSIGNED_SHORT, cubeIndicesFaceLeft); 

     glColorPointer(4, GL_UNSIGNED_BYTE, 0, cubeFillColorsFaceRight); 
    glEnableClientState(GL_COLOR_ARRAY); 
     glDrawElements(GL_TRIANGLE_FAN, 5, GL_UNSIGNED_SHORT, cubeIndicesFaceRight); 
     //glDrawElements(GL_TRIANGLE_STRIP, 5, GL_UNSIGNED_SHORT, cubeIndicesFaceRight); 

     glColorPointer(4, GL_UNSIGNED_BYTE, 0, cubeFillColorsFaceTop); 
    glEnableClientState(GL_COLOR_ARRAY); 
     glDrawElements(GL_TRIANGLE_FAN, 5, GL_UNSIGNED_SHORT, cubeIndicesFaceTop); 
     //glDrawElements(GL_TRIANGLE_STRIP, 5, GL_UNSIGNED_SHORT, cubeIndicesFaceTop); 

     glColorPointer(4, GL_UNSIGNED_BYTE, 0, cubeFillColorsFaceBottom); 
    glEnableClientState(GL_COLOR_ARRAY); 
     glDrawElements(GL_TRIANGLE_FAN, 5, GL_UNSIGNED_SHORT, cubeIndicesFaceBottom); 
     //glDrawElements(GL_TRIANGLE_STRIP, 5, GL_UNSIGNED_SHORT, cubeIndicesFaceBottom); 

     glBindRenderbufferOES(GL_RENDERBUFFER_OES, colorRenderbuffer); 
     [context presentRenderbuffer:GL_RENDERBUFFER_OES];