A little tutorial and other stuff (Patreon)

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I made this modification to Izumi just to make some animations, like the one in the previous video, a bit easier to animate, and now most of the animations I make, require this modification, moving the Groove bone up and center it, this may or may not require re-centering the Mother and Center bones, in this case it did, if in your case it doesn't then the last part of the videos is not necessary, I re-center the entire model using transform view just to make it quicker, I also disabled all the IK chains the model has just in case, but once again if your model didn't require re-centering then you can just save the changes, I also created a bone morph to move the Groove bone back to it's original height, in this case the only affected bones are the Groove and Waist bones, the groove bone moves down and the Waist bone moves up, this cancels each other's movement as you can see in the video but the Groove bone returns to it's original position, if your model doesn't have a Waist bone, then the morphs must include 3 bones instead of 2, the Groove bone moves down and the Upper body and Lower Body move Up, in either case, with or without the Waist bone, the movement should be the same amount up and down, like in the video, remember to add it to the display panel too.