review and merge working version from the forum http://forum.mgear-framework.com/t/mgear-springnode-gravity/796/32

This has been reported by a LinkedIn contact.

But i just found a small bug i think and was wondering if you know a solution. Cause we are working in maya 2019 in the animation. And on the characters we use a bit of these dynamic chains. But when we use it in combination with the timeline caching of maya 2019 the chains dont work anymore. We have to switch the timeline chaching off and on, and then it works again till i move one of the controllers again...

Need to check this one to see if we can solve this by adding the caching API requirements

• The offset should be applied before calculating the rest matrix.
• change the name of the attribute to driver orientation offset
  - [ ] ty set the joint orient from the matrixConstraint node. This will allow the user to change the joint orientation while keeping the joint rotation neutral [0, 0, 0] . -->> Expose the output rotation of the driven rest matrix to connect with joint orient attrs

From @miquelcampos on December 18, 2017 9:21

In order to connect the joint in Shifter rigs, we have to use 2 multiply matrix and 2 decompose matrix

This is not very "expensive". But... since we use this connection combination in many places, this can be optimized to 1 single node

The new node description

• Input: the world matrix of the driver transform
• Input: Static offset matrix value. This is the identity matrix for the rest pose
• Input: the driven parent inverse matrix
• Output: Translate
• Output: Rotate
• Output: Scale
• Output: Shear

Copied from original issue: mgear-dev/mgear_legacy#121

Hello @JaschaW I will add some extra functionality to the node

rotation offset
negate scaling (or scaler multiplier)

but first I will create the method to use it in apply op module mgear-dev/mgear_core#68

So we never have 0 scale.

reported in the forum
http://forum.mgear-framework.com/t/does-anyone-have-any-issues-with-softness-control/2041/4
https://youtu.be/N0DYFcZFmQI