Ati initialization problem

[Claudio]

HI,
i have a source, tha on the my old 3dfx worked, now on my new g4 don't work.
The problem was the agl apy that allocate the glcontext.
Anyone as an idea?

Claudio

[BANE]

Can you post your initialisation code please ??

Dan.

[Claudio]

Thanks for he answer, this is the code....:

GLint attrib[64];
GLint i = 0;
AGLPixelFormat glPixForm = 0L;
OSStatus err = noErr;

try {

LightAmbient[0] = 0.5f;
LightAmbient[1] = 0.5f;
LightAmbient[2] = 0.5f;
LightAmbient[3] = 1.0f;

LightDiffuse[0] = 1.0f;
LightDiffuse[1] = 1.0f;
LightDiffuse[2] = 1.0f;
LightDiffuse[3] = 1.0f;

LightPosition[0] = 0.0f;
LightPosition[1] = 0.0f;
LightPosition[2] = 2.0f;
LightPosition[3] = 1.0f;

// Controllo se devo andare in fullscreen
if(isFullScreen) {
attrib[i++] = AGL_RGBA;
attrib[i++] = AGL_DOUBLEBUFFER;
attrib[i++] = AGL_NO_RECOVERY;
attrib[i++] = AGL_ACCELERATED;
attrib[i++] = AGL_FULLSCREEN;
attrib[i++] = AGL_NONE;
} else {
attrib[i++] = AGL_RGBA;
attrib[i++] = AGL_DOUBLEBUFFER;
attrib[i++] = AGL_NO_RECOVERY;
attrib[i++] = AGL_ACCELERATED;
attrib[i++] = AGL_NONE;
}

/* Choose an rgb pixel format */
/* the first element is gdhandle*/
glPixForm = aglChoosePixelFormat(0L, 0, attrib);
if(glPixForm == NULL) {return NULL;}

/* Creo il context per le OpenGL */
glContext = aglCreateContext(glPixForm, NULL);
if(glContext == NULL) throw (OSErr) 1;

/* Attacco il context delle openGL alla finestra Mac */
//getWindowRef(); called from videomanage class
if(!aglSetDrawable(glContext, (AGLDrawable)_3DWindow)) throw (OSErr) 1;

/* Setto il context come corrente */
if(!aglSetCurrentContext(glContext)) throw (OSErr) 1;

/* rimuovo il pixel format */
aglDestroyPixelFormat(glPixForm);

[BANE]

Is fullscreen set to 1 one 0 ?? And have you tried taking the AGL_NO_RECOVERY off the attib list ??

Dan.

[Claudio]

the error is given by
glContext = aglCreateContext(glPixForm, NULL);
i have tried to taking of the AGL_NO_RECOVERY param...
This error occure also in fullscreen mode.
The aglCreateContext return null.
This on the 3dfx work perfectly

[BANE]

Maybe you should try specifying a pixel size like 16 bits or 32 bits. I have no problem myself with the ATI Rage 128. I 'll post my init code if you cannot make it work.

Dan.

[Claudio]

I have made it work i have reòoved the ACCELERATION tag by init parameter

[BANE]

You probaly lost all acceleration though. What graphics card have you got ??

Dan.