I am modeling (roughly) a human spine. I have created a stack of 28 bones (meshes) with an IK chain of 30 bones (28 bones + 1 null + 1 IK solver). When using Blender 2.36 on a Dell 2.1Ghz, Windows XP platform, there are unexplained pauses of up to 3-4 seconds at random moments when posing this armature.
First, is the chain simply too long? Other than the pauses it poses normally aside from being slower because of the length.
Second, why are the pauses at random moments? A pause at startup might be understandable, as it’s ploughing through the math necessary to deform a stack of twenty-eight bones. Why would a pause occur at other, random, moments? Perhaps I should stay on a Linux platform?
Finally, to avoid all this confusion should I reduce my spine model into three sections (cervical, thoracic, and lumbar) to reduce CPU demand and speed posing?