shoulder, elbow, wrist - What am i doing wrong?

Introduction to Maya - Rendering in Arnold

This course will look at the fundamentals of rendering in Arnold. We'll go through the different light types available, cameras, shaders, Arnold's render settings and finally how to split an image into render passes (AOV's), before we then reassemble it i

Watch

# 1 04-09-2011 , 04:53 AM

Registered User
Join Date: Sep 2011

Posts: 2

shoulder, elbow, wrist - What am i doing wrong?

Maya 2012

Ok, so i have the shoulder joint -> elbow joint -> wrist joint, 5 fingers, skin, etc...

i set up an IK solver from the shoulder to the wrist.
works great.

i start animating and i get a problem -
i move the arm by the IKsolver on the wrist and place it from CHRIST pose to
down by his side.
set the key.
wait a sec, i need to adjust that shoulder a bit.
but, after setting the key for the IKsolver along the arm by moving it at the wrist -
i am no longer able to rotate the shoulder.
huh?

this happens with thigh->knee->foot, also.

what am i doing wrong that is causing my IK joints to freeze like this?
if i use an IKsolver to move the arm pose by the wrist, then do i have to
sacrifice the ability to modify the shoulder?
if so, then how can i move the arm into a location now with the fluid motion of the IKsolver and
still be able to animate him rolling his shoulders?

Quote

# 2 04-09-2011 , 03:28 PM

Technical Director
Join Date: Feb 2004

Posts: 2,988

That's because IK constrains both joints. If you want to do this, you'll need to create an FK-IK rig.

Take a look here to see how they're set up: https://www.jawa9000.com/Technical/fk.../fk-ik-arm.htm

Imagination is more important than knowledge.

Last edited by NextDesign; 05-09-2011 at 03:28 AM.

Quote