April 2005 - Fractdev - mailman.xmission.com

Athlon woes
by Tim Wegner 03 Sep '08

03 Sep '08

I built a computer last year using an Athlon with a Gigabyte motherboard. I had troubles with Fractint - with any SVGA mode the computer would hang after the completion of the image. I always assumed this was an Windows XP issue. Today I tried Fractint with freedos on the same computer, with the same results. So apparently it's an incompatability bgetween fractint and my compuiter. Truecolor, 320x200, diskvideo, and even tweaked modes work. SCGA modes fail, and only after the image completes. This behavior appears to have nothing to do with recent versions. Has anyone else had trouble with Athlon? Hmm, maybe I need to look at bios settings. Tim

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Bug in version 20.4.1 (new drawing modes for passes=orbits)
by Gerald K. Dobiasovsky 17 Jul '05

17 Jul '05

Jonathan, In rectangle orbitdraw mode, using "maintain screen coordinates": The <F6> image coordinates get munged when changing anything at the <F2> screen coordinates prompt, provided the <F6> image coordinates had a non-zero rotation and/or skew angle. The <F6> coordinates "lose" their original angle/skew data, and magnification and x-magnification are grossly different than before. Below I've included the part of the source where (I think) the mistake has been made (unaltered save the four additional comments pointing to the offending lines). Regards, Gerald -------------------------------- 8< ------------------------------------ File: prompts2.c Line: 2347 In: get_screen_corners() svxxmin = xxmin; /* save these for later since cvtcorners modifies them */ svxxmax = xxmax; /* and we need to set them for cvtcentermag to work */ svxx3rd = xxmin; /* <-- xx3rd instead of xxmin ? */ svyymin = yymin; svyymax = yymax; svyy3rd = yymin; /* <-- yy3rd instead of yymin ? */ if (!set_orbit_corners && !keep_scrn_coords) { oxmin = xxmin; oxmax = xxmax; ox3rd = xxmin; /* <-- xx3rd instead of xxmin ? */ oymin = yymin; oymax = yymax; oy3rd = yymin; /* <-- yy3rd instead of yymin ? */ } -------------------------------- 8< ------------------------------------

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Patch 6
by Jonathan Osuch 03 Jul '05

03 Jul '05

Tim, I'm going to try to wrap up patch 6 this week. So far, this is what I have: Fixed FPUcplxdiv and FPUcplxlog routines in fpu087.c to match assembler code. Fixed it so spaces are recognized in PAR entry names. Fixed evolver parameter entry. Fixed hypercomplex fractal type to turn off symmetry when a cj parameter is used. Fixed the plasma type to show the value of the parameter that is actually used in the image generation. Fixed the plasma type so that a parameter file uses the included colors instead of the default colors. Revised the plasma type prompt to reflect the values that could actually be used. Fixed inside=atan and outside=atan to use the full color palette instead of limiting to 180 colors. Modified the resume code to remove the Xfractint specific sections since they are no longer needed. I still need to move all this over to DOS and make sure nothing is broken. There are other fixes I would like to include, but haven't done them yet. Jonathan

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Progress towards version 20.04 patch 1
by Jonathan Osuch 22 Apr '05

22 Apr '05

Tim, Despite the silence, I have started once again to make progress towards getting the next patch ready. I was actually fairly close before I start working in Illinois again. It only took about two weeks to get an internet connection, then another week or two to figure out how to send email. It won't take nearly so long next time, since I've managed to find out how to make Evolution use sendmail. Very handy, sendmail. Hopefully, this list won't know the difference. Using mandy for a CVS repository is problematic occassionally because the ISP I use in Illinois has some server and/or DNS issues. However, it is working and I have managed to export a usable source tree from it. It's a bit of a pain to have to enter my password all the time, but it's now memorized so it isn't all that bad. It seems to me, though, that it might be getting sent across as clear text when I have to run a command from a terminal on my machine. This happens when I want to make a diff file. Jonathan

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