I’ve tried quite a bit of googling, and I can’t seem to find any information on how exactly weight painting actually works and how weights influence vertices.
I’ve been trying to figure it out with a basic plane. If I create a plane and 1 bone, parent it to the plane (with automatic weights), when I move the bone in pose mode it brings all 4 vertices along with it in a 1:1 fashion (as I’d expect). Right now, all vertices are in the bone’s group and all weights are 1.
Now, if I assign all the vertices to only have a weight of .5, this has no impact at all on how the vertices move with the bone. they still move with the bone 1:1.
Now if I create ANOTHER bone and another bone group, and assign all my bones a weight of .5 on that one, now everything moves in a .5:1 ratio (if I move the bone 1 unit to the right, the vertices move .5 units to the right).
This effect is the same if I have both weights for both groups be 1. They still move at a .5:1 ratio.
What exactly does a weight of .5 MEAN? The only explanations I can find is that weight is “influence” but they don’t go into what that means at all.
I also can’t find ANY documentation on how curved bones actually work as well. I search “Blender Curved Bones” in Google and there’s literally no information that comes up on the first page. When I say “curved bones” I mean the option in the “Bones” dialog under “Deform”.
On an unrelated note, why when I search for anything Blender related on Google do I get docs that refer to 2.4 instead of 2.5 or 2.6? Do most people still use 2.4? I used to use Blender several years ago (but stopped around the time that 2.5 released) and trying to learn anything with the new interface is a huge headache. Is there a place that can tell me of all the name and interface changes between 2.4 and 2.6?