Depth buffer problem?

That looks bad, post some code.

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''I wish life was not so short,'' he thought. ''Languages take such a time, and so do all the things one wants to know about.'' - J.R.R Tolkien
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Also, what is the bit depth for your depth-buffer?

Some code would be most helpful. are loading that as a model? for example from 3D Studio Max? or is it a list of vertices? if its verticies maybe you have to tell your engine to not draw surfaces that are blocked by other faces (i.e. - not veiwable thru the present frustrum) just a guess, but without code its hard to say.

r3alityc0d3r
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"I am the Architect. I created the Matrix...Your life is the sum of a remainder of an unbalanced equation inherent to the programming of the Matrix. Which has led you, inexorably... here." Great Architect - Matrix Reloaded

Well I know its not in my rendering code because if I draw 2 simple quads 10 units away from eachother and rotate the scene so they overlap I get this:



Here is the code I use to setup the window:

CWindow::CWindow()
{
	if(SDL_Init(SDL_INIT_VIDEO) < 0 )
	{
		m_pLog->write("Video initialisation failed: %s", SDL_GetError()); // Write error to log


		SDL_Quit();

		exit(0);
    }

	m_pInfo = SDL_GetVideoInfo();

	if(!m_pInfo)
	{
		m_pLog->write("Video query failed: %s", SDL_GetError()); // Write error to log


		SDL_Quit();

		exit(0);
    }

	SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
    SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
    SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
    SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 32);
    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);

	m_iFlags = SDL_OPENGL | SDL_FULLSCREEN | SDL_HWSURFACE;

	resize(m_iScreenWidth, m_iScreenHeight, m_iScreenBPP);
}

void CWindow::resize(int width, int height, int bpp)
{
	m_iScreenWidth = width;
	m_iScreenHeight = height;
	m_iScreenBPP = bpp;

	if(SDL_SetVideoMode(m_iScreenWidth, m_iScreenHeight, m_iScreenBPP, m_iFlags) == 0)
	{
		m_pLog->write("Video mode change failed: %s", SDL_GetError());	// Write error to log.


        SDL_Quit();

		exit(0);
    }
}

And for setting up opengl I use:

CGLRenderer3D::CGLRenderer3D()
{
	glClearColor(0, 0, 0, 0);	// Set the clear colour!


	glEnable(GL_DEPTH_TEST);
}

void CGLRenderer3D::preRender()
{
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);	

	glMatrixMode(GL_PROJECTION);	
	glLoadIdentity();
	gluPerspective(60, 1.3, 0, 100);

	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();

	gluLookAt(30,30,30, 0,0,0, 0,1,0);
}

Ive got gluPerspective running each frame because I have 2D elements as well that are drawing to the screen. However I have stopped them drawing and the same thing happens anyway so its not that interfering. Any ideas now?

-wolfman

The "near" clipping plane should NOT be 0.

---

How appropriate. You fight like a cow.

THANKYOU SO MUCH Sneftel!

/me smacks forhead on the table

Such a timy little thing that I failed to notice and it all works now!

Cheers for the help

-wolfman