So I'm making a c++ and opengl app, with bone transformations, and it is spazzing out for no reason. And I really mean no reason. I spent weeks on this app without any problems. Character walked etc, looked nice. Today I added shadows to the shader, no problem. Later on it started going crazy. like the matrices were totally distorted and the screen is raped with random triangles going crazy. Seizure inspiring.

Luckilly I had backed up this program about 8 times. Every single other previous version is doing the exact same thing. No other project is acting this way.

What the hell is going on? I can't find any problem in the code. This happened right after nvidia update, so not sure how to go about fixing this...

EDIT: If i Freeze the animation (as in only render same animtime constantly), it still spazzes out. What the hell is going on?? Doesn't happen when I negate the bone transformations from the shader though.

The thing is this exact code worked perfectly earlier. I even went through my backups, and they all have the same problem, despite all working perfectly fine when I copied them.

I rebooted yes.

This is what I don't understand:

It's the bone transformations giving the error. I take them out, it all works fine.

if I set the bone transforms only once in the beginning and don't touch them at all, it still spazzes. If they are unchanged, the entire scene should just be the exact same image throughout, but for some reason the poly's go spastic. Makes absolutely no sense.

I can only agree with BitMaster. You are probably seeing undefined behavior either in OpenGL or C++. You are lucky though, since you can clearly see the error with 100% reproduction rate no less.

Perhaps first start with trying the project out on a different computer.

I dont have another computer available to me right now.

Another thing I did was test another app with bone transformations and it worked fine.

The difference between these two apps is the one with the problems is initialized with sdl, the working app with glut.

void GRAPHICSMANAGER::InitializeGraphics(int width, int height, const std::string& title, bool fullscreen)
{
	SDL_Init(SDL_INIT_EVERYTHING);

	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_ALPHA_SIZE, 8);
	SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE, 32);
	SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
	SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);

	m_fullscreen = fullscreen;

	if (m_fullscreen)
	{
		m_screenWidth	= GetSystemMetrics(SM_CXSCREEN);
		m_screenHeight	= GetSystemMetrics(SM_CYSCREEN);

		m_window = SDL_CreateWindow(title.c_str(), SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, m_screenWidth, m_screenHeight, SDL_WINDOW_FULLSCREEN | SDL_WINDOW_OPENGL);
	}
	else
	{
		m_screenWidth = width;
		m_screenHeight = height;

		m_window = SDL_CreateWindow(title.c_str(), SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, m_screenWidth, m_screenHeight, SDL_WINDOW_OPENGL);
	}
	
	m_glContext = SDL_GL_CreateContext(m_window);

	GLenum status = glewInit();

	if (status != GLEW_OK)
		std::cerr << "Glew failed to initialize!\n";

	glEnable(GL_DEPTH_TEST);

	//glEnable(GL_BLEND);
	//glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

	glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
}

Maybe it's this? I don't know

Texture ID = 3452816845.

I'm starting to think more and more that the driver fucked up SDL applications that dare use bone transforms

EDIT: Ok, to add to the confusion - When i run debug mode, the application looks different than running from the .exe.

Debug mode, model is normal, walking, poly's spazzing out.

Run from exe, model is completely distorted, bones are way off, and poly's are spazzing out as well. Also no texture?????

What in the actual fuck is going on?

Well I'm happy to report that I was right all along.

After downloading and installing the driver, turns out i needed to go into my system, and tell the gpu to update its driver (again?). I don't understand this driver business, but all I know now is that it works.

I appreciate all your help. I actually found and tweaked a few little things in my code because you guys made me look.

:)

Hello everyone, I'm appropriately bumping this thread because once again, opengl is spazzing out just as it did before, only this time if i manually go into system and tell it to update it says I have the latest version, so I can't do what I did last time. Please help, as I cannot do anything productive with this happening