hoping someone here has some insight:
Simple FBO setup (to render a picture which is grabbed and placed on a GUI button):
GLuint fb, cb, db;
glGenFramebuffersEXT( 1, &fb );
glBindFramebufferEXT( GL_FRAMEBUFFER_EXT, fb );
glGenRenderbuffersEXT( 1, &cb );
glBindRenderbufferEXT( GL_RENDERBUFFER_EXT, cb );
glRenderbufferStorageEXT( GL_RENDERBUFFER_EXT, GL_RGB, BW, BH );
glFramebufferRenderbufferEXT( GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, cb );
glGenRenderbuffersEXT( 1, &db );
glBindRenderbufferEXT( GL_RENDERBUFFER_EXT, db );
glRenderbufferStorageEXT( GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT16, BW, BH );
glFramebufferRenderbufferEXT( GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, db );
I run this on 2 machines, one with a 6800 in single display mode 1280x1024, the other with a 6800 GT in dual-display mode 1280x1024, both with driver 91.47.
The 6800 works with GL_DEPTH_COMPONENT16, but not GL_DEPTH_COMPONENT32 or GL_DEPTH_COMPONENT.
The 6800 GT doesn’t work for any GL_DEPTH_COMPONENT.
When it fails, glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) returns GL_FRAMEBUFFER_UNSUPPORTED_EXT.
Is FBO not fully supported on the GT? Any other ideas!?
Thanks!