I have a crab object and when something gets close overhead the crab tries to bite it, I also want the crab move it’s body up while keeping it’s legs on the ground so it looks like it is stretching toward the incoming object. Here is what i tried I select the root bone located in the crab body then i select the first bone of the crab legs i move those up a bit and it looks good Here is the problem when i add keyframes of the crab in the new position then try the animation it does not work, Am i supposed to use fro a keyframe loc, rot , locrot. I have troed them all and does not work
No, I tired fooling with it and part of it worked I am just trying to move the root bone look at your spider the root bone on my crab is where your root bone on the body of the spider If your spider tries to grab something like a fly it will straighten his legs and body up. On my crab when something goes by it will try to grab it by moving it’s body and upper legs up. I don’t believe i need constraints by the way i could not open up your blend it is a different version I am using 2.49 and my crab will be used in game engine
To be clear, the spider model/rig is not mine. I was only providing advice in that thread. Give me a few hours (need to step away from the computer for some coffee :)) and I’ll recreate that .blend file in 2.49b.
If you move the body bone, you should notice that the foot stays still until it gets pulled off of the ground. If you move the legIK bone, the leg chain moves while the body remains stationary.
To do a walk, you animate the location of root bone and the legIK bone… which is certainly easier than animating the rotation of every bone between the root and the legIK bone.