This article is also pretty good, although a bit more advanced. http://freespace.virgin.net/hugo.elias/models/m_ik2.htm
The thing to realise is that IK is not an exact science - there are lots of different approaches and formulas. One of the reasons for this is that the mathematical problems it's trying to solve sometimes do not have solutions. For example, if I'm trying to control a robot arm, and trying to reach for something which is further away than the maximum reach of the arm, then I'm trying to do something impossible, which naturally has no mathematical solution. One thing that really messes up computers is impossible problems - (see "divide by zero"). HTH, Alias 2010/1/28 MastroBardo <[email protected]>: > tnx man , i started my project after see a roxik demo :). > > i googlng around , but i found till now ik engines demos , but no > source...everyway , if i have to reinvent the wheel , anybody know some > tutorial (math or what else) , readable by a math ignorant , on IK ? > I found something around , but only formulas without a clear explanation ... > tnx again > > > 2010/1/28 Pine Du <[email protected]> >> >> Hi Bardo, >> >> There is one from Roxik: http://temp.roxik.com/ >> >> It's amazing, but not released yet. >> >> That's all I know. But I believe you will get help if you ask guys of pv3d >> mailing list. >> >> Regards. >> >> 2010/1/25 MastroBardo <[email protected]> >>> >>> hi all , im starting to develop a new project , in the intentions there >>> will be a 3d model animated , i dont want to use md2 , but animate it only >>> via code. >>> So my questions are : >>> 1 - is there any IK free engine ? >>> 2- can i move bones in some 3d engine ( it doesnt matter which), via >>> tween? >>> tnx >>> -- >>> BardOo. >>> >>> _______________________________________________ >>> osflash mailing list >>> [email protected] >>> http://osflash.org/mailman/listinfo/osflash_osflash.org >>> >> >> >> >> -- >> 祝愉快 >> >> 杜彬 >> Sent from Beijing, 11, China >> _______________________________________________ >> osflash mailing list >> [email protected] >> http://osflash.org/mailman/listinfo/osflash_osflash.org >> > > > > -- > BardOo. > > _______________________________________________ > osflash mailing list > [email protected] > http://osflash.org/mailman/listinfo/osflash_osflash.org > > _______________________________________________ osflash mailing list [email protected] http://osflash.org/mailman/listinfo/osflash_osflash.org
