OpenGL Depth Problems

It draws only black. I'm almost completely sure that it's a depth problem. So this would be the code.

Code:

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GLvoid ReSizeGLScene(GLsizei width, GLsizei height)       
{
        if (height==0)                                                                       
        {
                height=1;                                                                       
        }

        glViewport(0,0,width,height);                                               

        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();                                                       
       
        glFrustum(-1.0, 1.0, -1.0, 1.0, 0.0, 1.0);
        glTranslatef(-2.5,2.5,3.0);

        glMatrixMode(GL_MODELVIEW);                                       
        glLoadIdentity();                                                       
}

int InitGL(GLvoid)                                                       
{
        loadtexture();
        glEnable(GL_TEXTURE_2D);
        glShadeModel(GL_SMOOTH);                                               
        glClearColor(0.0f, 0.0f, 0.0f, 0.0f);                       
        glClearDepth(1.0);                                                               
        glEnable(GL_DEPTH_TEST);                                                                                                               
        return TRUE;                                                                       
}

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you could try using gluPerspective...

Code:

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void gluPerspective(GLdouble fovy,
                                GLdouble aspect,
                                GLdouble zNear,
                                GLdouble zFar)

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gluperspective doesn't perform frustum clipping

Quote:

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Originally posted by Silvercord
gluperspective doesn't perform frustum clipping

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zNear and zFar specify the distance to the near and far clipping planes. so if its a depth problem (as droid thinks it is) the near/far clipping planes could be part of it.

I thought he had glfrustum in there because he wanted frustum clipping

Quote:

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Originally posted by Silvercord
I thought he had glfrustum in there because he wanted frustum clipping

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he can still have it..

http://www.cevis.uni-bremen.de/~uwe/...rspective.html

Quote:

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DESCRIPTION
gluPerspective specifies a viewing frustum into the world coordinate system.

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I tried changing it to perspective... it didn't change anything.

Could you post your drawing code? It could be that you aren't swapping your buffers, or if you are using single buffered mode are you calling glFlush() at the end of your drawing routine?

Also, make sure you are in RGBA mode, texture mapping only works in RGBA mode, and check that your texture size is a power of 2.

he got it fixed :) I gave him some help over IM.........it was just a matter of using perspective view over orthographic.....

Ah cool. :)