IK Stretch Deformation Issue on Legs

GVis

Hi, I'm trying to set up the bone system for my character. I applied an IK system to the legs and enabled the "stretch" option. However, when I move the character from the center of gravity, the legs stretch in a strange and unnatural way. I don't really like how it looks. Could I have made a mistake somewhere? How can I prevent this? Thank you.

Misaki

GVis Based solely on those screenshots, it's difficult to make an accurate judgment, but as Spinebot suggests, it would be a good idea to look at the Stretchyman example and try to

When the Stretch option is enabled, it's normal for constrained bones to stretch when they move away from the target bone. However, if the weights aren't set correctly, it may look strange. In your case, I think it looks strange because the tips of the shoes are stretching too far, even though they should not be affected by stretching. Therefore, it may be a good idea to review not only the IK settings but also the weights.

Spinebot

When using the "stretch" option in IK constraints, the constrained bones will scale to reach the target, which can sometimes result in unnatural stretching if not set up correctly. To address this, ensure that the parent bone does not have a nonuniform scale, as this can affect how the child bone stretches. You might also want to check the IK constraint setup to ensure the target bone is positioned correctly at the tip of the child bone before creating the constraint. Additionally, consider adjusting the influence of the IK constraint during specific parts of the animation to reduce the stretching effect. Reviewing the Stretchyman example might provide insights into setting up a more natural-looking stretch.