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FBO problem on nvidia cards?

Started by Schinizer Sep 6, 2010 at 4:34 PM 4 replies 1.1k views

Original Post

Sep 6, 2010 at 4:34 PM

Hi all,

I've met some problems with FBOs.

When I go through some intensive testing for my program, sometimes I couldn't initialize the FBO (Error returned was GL_FRAMEBUFFER_UNSUPPORTED_EXT) when I start my program.

It auto fixes sometimes when I leave the com for awhile (Yes I know it sound stupid)
Or sometimes I couldn't initialize again until I restart my computer.

My drivers are the latest.

I've met this problem on a 9300m GS, 9600m GS and a GTX285m. I've tried my code on a ATI HD5870 and I have never meet this problem.

Anyone met the same problem as me? Or its just me?

Yann L

Sep 6, 2010 at 8:03 PM

Sounds like you have an uninitialized variable somewhere in your code.

Schinizer

Sep 6, 2010 at 10:15 PM

Hmm. Any idea where that might be? What I did was something like this

        glGenFramebuffersEXT(1, &m_fbo);	glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_fbo);	m_offScreenTextures["ColorBuffer"] = CreateTexture(m_fboTarget, m_fboInternalFormat, m_fboFormat, m_fboType, GL_COLOR_ATTACHMENT0_EXT);	AttachTextureToFBO("ColorBuffer", GL_COLOR_ATTACHMENT0_EXT);	glGenRenderbuffersEXT(1, &m_fboDepthBuffer);	glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, m_fboDepthBuffer);	glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT, m_fboWidth, m_fboHeight);	glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, m_fboDepthBuffer);	CheckFramebufferStatus();	int actualWidth = 0;	int actualHeight = 0;	glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_WIDTH_EXT, &actualWidth);	glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_HEIGHT_EXT, &actualHeight);	assert(actualWidth == m_fboWidth);	assert(actualHeight == m_fboHeight);	glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);