First of all, they are both ways of positioning joints so the limb/body as a
whole is in the correct position, but their approaches to doing so are quite
different. In forward kinematics, you specify a rotation at each joint in,
say, an arm, to position the hand where you want it. In inverse kinematics,
you specify the location of the hand and the joint angles are mathematically
computed to place the had at that point.
Essentially, with forward kinematics:
Hip-moves-upper leg-moves-knee-moves-lower leg-moves-ankle-moves-foot.

With inverse kinematics:
Foot-moves-ankle-moves-lower leg-moves-etcetera.

--

//Mahalis
camera{location<0,0.25,-2> look_at 0.5*y} #declare T=texture{pigment{crackle
scale 0.5 rotate 90 turbulence 0.75 color_map{[0 rgb 1][0.05 rgb 1][0.1
rgb<1,0.25,1>][0.25 rgbf 1][1 rgbf 1]}} finish{ambient 1}} #declare
c=difference{torus{0.5,0.1 rotate -90*x}box{<0.7,0,0.2>,<-0.7,-0.7,-0.2>}}
merge{object{c translate<0.5,0.5,0>} object{c translate<-0.5,0.5,0>}
cylinder{<1,0.5,0>,<1,0,0>,0.1} cylinder{<-1,0.5,0>,<-1,0,0>,0.1}
cylinder{0.5*y,0,0.1} texture{T}}
--


"Arthur Flint" <mra### [at] chesapeakenet> wrote in message
news:Xns### [at] 204213191226...
> I have seen the term IK and FK used freely on this board. And though I
> understand that they mean Inverse Kinetics and Forward Kinetics, just what
> does that mean?

Post a reply to this message