How hard can this be?
Two fat books hint that there may be a lot to this:
There are lots more here, use the link:
Or, check this out:
A nice intro to OpenGL
yum list | grep mesa mesa-libOSMesa.i386 7.0.2-3.fc8 updates mesa-libOSMesa.x86_64 7.0.2-3.fc8 updates mesa-libOSMesa-devel.i386 7.0.2-3.fc8 updates mesa-libOSMesa-devel.x86_64 7.0.2-3.fc8 updates yum list | grep glut freeglut.x86_64 2.4.0-11.fc8 installed freeglut.i386 2.4.0-11.fc8 fedora freeglut-devel.i386 2.4.0-11.fc8 fedora freeglut-devel.x86_64 2.4.0-11.fc8 fedora hugs98-glut.x86_64 2006.09-3.fc7 fedora
I have a strong suspicion that I may need the freeglut-devel package (since the devel package will probably have the headers, and I do:
yum install freeglut-devel.x86_64
(~/Mesa/bounce) cholla $ ./bounce freeglut (./bounce): ERROR: Internal error
in function fgOpenWindow X Error of failed request: BadWindow (invalid Window parameter) Major opcode of failed request: 4 (X_DestroyWindow) Resource id in failed request: 0x0 Serial number of failed request: 14 Current serial number in output stream: 17
GLUT stands for OpenGL Utility Toolkit. It claims to be (and no doubt is) a portable API that allows a person to write simple OpenGL applications. It is not open source! I guess that is what the freeglut packages are all about. Actually GLUT turns out to be a portable API for all the non-portable aspects of an OpenGL application, there is a sizeable OpenGL core API that is the same everywhere.
/* glutInitDisplayMode(GLUT_INDEX | GLUT_DOUBLE); */ glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH);And now it works, but much too fast to look like a bouncing ball on my machine (which is a dual core 3.2 Ghz amd64). We'll figure out how to throttle that later. Apparently "INDEX' mode is not supported on my graphics hardware, but "RGBA" mode is, hmmm. GLUT_DOUBLE says to do double buffering (nothing to do with floating point single/double).
Although the cube demo seems to work just fine, (even the keys to stop and change speed all work as advertised); when I run "top" to look at cpu activity, it shows the CPU running "cube" at 100 percent, which certainly doesn't sound like hardware acceleration.
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