View Full Version : IK popping problem

10 October 2004, 07:53 PM
hi all!

i have got some serious ik-popping problems with the legs of my humanlike- character, perhaps the screenshots can describe what i mean:

i can move the control-null until here before the "popping" begins:

here begins the disaster:

and here a shot to illustrate better how it should be:

the rig was done by completly following video tutorials of chris olsen. i compared my rig with his and i really, really couldn't find any differences after checking every single parameter again and again. but his one works, mine does not :(

do you have any advises for me?


-the bones perfectly line up with the nulls, i adjusted everything at the maximum zoom.

-only the under-leg has limits on its headings, but it doesn't make a difference if turn it on or off.

-goals strenghs are left at 1.0, changing that parameter doesn't do any effects.

thank you for any replys :)

10 October 2004, 12:16 AM
....oh please help guys, don't let this thread get on page 2... :shrug:

10 October 2004, 03:35 AM
Go to frame -1
turn off IK (global)
bend the knee

This should help

10 October 2004, 02:47 PM
man, that works!! thanks, castius! i already was quite desperated.

but i really don't get why this works...? is it a must to do it that way before ik-movement in lightwave?

again, thank you, you made my day :)

10 October 2004, 03:02 PM
It's called Ik prebend angle in other apps its a setting. In LW the IK and FK work on the same channel so it works by reading the first key. Using -1 allows you to have a bind pose one 0 but a prebend angle on -1. It basicly give IK a small brain telling it i want to bend this way more than the other.

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