Autolimb tutorial genesis pushups
Understanding autolimb
Example, you select a figure's left foot and you start Autolimb
since only one node is selected, autolimb creates a null node at the position of the left foot
this null node will be called the target
the left foot is deemed "the targeter"
Autolimb measures the distance between the left Thigh joint and the target
Faster than the eye can see, Autolimb bends and unbends the left Shin joint until the distance between the thigh joint and the foot joint matches that distance
if the target is too far from the thigh joint, Autolimb wont be able to find a knee angle that satisfies the goal
if the knee limits are set to -10 to 165 degrees, then two bend angles may satisfy the leg-length requirement
for example -5 degrees and 5 degrees, this must situation must be avoided, so set the limits to 0 to 165 degrees
if the knee or elbow bend limits are -165 to 10 degrees, set them to -165 to 0 degrees
then Autolimb twists and turns the thigh joint so that the line from the thigh joint and the foot joint points (and reaches) the target
if the limits on the thigh joint(s) dont allow this rotation the target wont be met
so it's better to set Limits Off on the thigh and shldr joints
Setting the Pose at frames 0 and 30
important points:
- elbow and knee bend limits were adjusted to range between 0 to 155 or -155 to 0
- the knees and elbows were left slightly bent ( to facilitate leg and arm length computes )
- limits were turned off on shldr and thigh joints
- limits on the wrist, feet and toes were set to off
- i do a Memorize-Figure-Pose at frame 0
- i do a Restore-figure-Pose at frame 0
- i do a Restore Figure Pose at frame 30
Setting the pose at frame 15
at frame 15, we xRotate the hip joint at 90 degrees ( horizontal body )
we lower the hips until the toes touch the ground
we do a Memorize Figure Pose
we do a Restore Figure Pose
Lets dance the Autolimb
at frame 0 we select the right foot
we start AutoLimb
we specify we want to process the whole PlayRange
we press the [Do It] button
we repeat this for the left foot and for the hands
if all go well the positions of the hand and feet joints are fixed for the whole duration of the playrange
if it didn't go well it probably means AutoLimb could not find a knee/elbow bend angle to meet your targets
you may need to adjust the pose where the knees/elbows are the most extended and give them a little bend angle
but the orientations of the hands and feet are not stable, we will fix that with mcjKeepOrientation
fixed orientations for ankles and wrists using mcjKeepOrient
important point: the Limits on the Hands and Feet and toes were set to Off
else mcjKeepOrient wont be allowed to set the extreme bend angles required
go at frame 0
select a foot
start mcjKeepOrient
specify you want to process the whole playrange
press the [Go] button
repeat for the other foot and hands