Hi Ladislav, > These demos work perfectly under MS-DOS. I can't test it under EDR-DOS > In FreeDOS I get the message "Graphics driver wasn't loaded."
Well it worked for me, see the detailled explanations below. > > > ftp://ftp.scitechsoft.com/devel/demos/dos I got the "mglgears" thing, which shows that well known 3 gears 3d screensaver like thing, and first ran it in xdosemu 1.3.4, which provides VESA VBE 2.0 ... Worked fine (XMS, EMS present). Using kernel 2036 and FreeCom 0.84pre2, typical FreeDOS 1.0 :-). Then I tried in plain FreeDOS, on insanely oversized hardware (dual core energy efficient Athlon64 with recent silent GeForce and enough harddisk and RAM space). That was surprisingly slow at very high resolutions, so it seems to use no hardware 3d, but apart from that, it worked fine, again. I tested with and without himem and with and without jemm386, all worked :-). Talking about configuration: > mglgears -help Valid arguments are: -nosnap -nodirectdraw -nohwopengl -usemesa -usesgi -stereo [refresh] -mode [xres] [yres] [bits] The -nosnap probably affects framerate. The -nodirectdraw option is treated as if I had used -help. The -nohwopengl seems to have no effect. Maybe hardware 3d is supported on some specific graphics cards. The -usemesa and -usesgi options are treated like -help. Giving an option like "-stereo 100" makes mglgears abort when the first image is ready for display, with a message that GL_STEREO is not supported. The -mode option works, but you can also run mglgears with NO options whatsoever to get nice defaults. Using -mode 320 240 16 gives high framerate, while -mode 320 240 8 gives nonrandom dithered display. Using 32 bit per pixel works, too, while 24 bit per pixel just aborts with no further message. Using -mode 1024 768 16 is okay. In short, I have been unable to reproduce problems with the Scitech MGL graphics driver example "gears", but maybe people with other hardware or less RAM will see problems? Still odd that MS DOS 7 behaved different to FreeDOS for you. Maybe you used a DOS box in Windows, which affects the availability of VESA VBE functions? It also takes up to a few seconds until mglgears starts to show an image, probably a lot more on more DOS- typical hardware, also a notable "issue" with mglgears. Eric ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel
