SimplyMaya Forums

Welcome to the forum, feel free to ask questions here.


SM Forums / Maya Questions / Programming / IK Leg stretching

Programming MEL Scripts, Expressions & Programming Related Topics

Join the conversation. Reply to post
 
Thread Tools
16-03-2018, 11:12 PM   #1
jesuss196
Registered User
 
Join Date: Jul 2010
Posts: 1
IK Leg stretching
Hi everyone, i'm working on a rig following the tutorial Creating a Comprehensive Character Rig from Maya Learning Channel. I made the left IK leg rig perfect, is stretching, but I'm doing the right leg and when i used the same Mel script, it doesn't work, I think maybe is because the Translation X in the left is positive and in the right is negative, I need help with that.

This is the script:

string $driver = "dist_l_length_IK0Shape1.distance";
float $leftThighLength = `getAttr jDrv_l_knee_IK01.translateX`;
float $leftKneeLength = `getAttr jDrv_l_ankle_IK01.translateX`;
float $sumLength = $leftThighLength + $leftKneeLength;

setDrivenKeyframe -currentDriver $driver -driverValue $sumLength -attribute "translateX" -value $leftThighLength jDrv_l_knee_IK01;

setDrivenKeyframe -currentDriver $driver -driverValue ($sumLength*2) -attribute "translateX" -value ($leftThighLength*2) jDrv_l_knee_IK01;

setDrivenKeyframe -currentDriver $driver -driverValue $sumLength -attribute "translateX" -value $leftKneeLength jDrv_l_ankle_IK01;

setDrivenKeyframe -currentDriver $driver -driverValue ($sumLength*2) -attribute "translateX" -value ($leftKneeLength*2) jDrv_l_ankle_IK01;

That's for left Leg, of course I substitute the left for the right and the "l" for the "r".

The answaer me an tell me that I need to multiply the various stretch equations by -1, but muy question is where exactly in the equation i have to multiply by -1.

Hope you can help me.
  Reply with quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
FK <=> IK Switch zzz7net Animation 0 10-12-2014 03:20 AM
ewbie help adding ik handles to legs, i cant do it sortedford Maya Basics & Newbie Lounge 2 03-04-2006 02:49 PM
dog back leg ik olivermagno Animation 1 20-06-2003 12:17 PM
IK DukerX Animation 2 20-04-2003 01:56 AM
Getting IK to work in reverse... dkouts Animation 9 02-12-2002 04:38 PM