Patches item #1413599, was opened at 2006-01-24 10:58 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=304041&aid=1413599&group_id=4041
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: Torsten Blank (bruceblank) Assigned to: Nobody/Anonymous (nobody) Summary: Calculation of quaternionic tangents (dd, ds) Initial Comment: I have found a bug in calculation of quaternionic tangents in function lib3ds_quat_key_setup, by comparing the lib3ds source with the document "How To Calculate KXP Spline Derivatives" found on the net. There the calculation of ksm, ksp, kdm, kdp coefficients for quaternions are different to the linear case. So, if you dont want add an additional funcion to tcb.c, you can replace the lines, where qa and qb were calculated. Additionally the order of arguments in one of the Log-Dif calculations (lib3ds_quat_ln_dif) have to be changed (also according to the HowTo found). I have tested the fix with some animations. greetings, Torsten Blank ([EMAIL PROTECTED]) ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=304041&aid=1413599&group_id=4041 ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 _______________________________________________ lib3ds-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/lib3ds-devel
