Hello guys, i want to rig a dog in maya. But i don’t have any knowledge about the Dog’s skeleton structure and how they interact when a dog moves or run or jump. Can anyone suggest me a good refrence where i can get much knowledge about dog’s skeleton structure and how the skeleton interact when dog gets into action.
Start with reading up on the spine and the different types of vertebrae- the lumbar vertebrae and cervical are where most of the spine/neck bending comes from. Look at a few images of dogs in extreme poses- stretching, sleeping, galloping etc and draw a line over where their spine roughly is. This should give you a pretty good idea of its range of motion.
In terms of the spine in motion, just check out slow motion footage of a dog galloping. It’s a really good example of how the spine bends and stretches (notice the scapula sliding forward when the front legs are outstretched- the whole body tries to become as long as possible).
Here is a little website with a full list of the normal range of motion for each bone in a dog/cat (check out the table at the bottom for the actual values). Not sure how accurate it is but it should help.
I highly reccomend Stuart Sumida’s stuff too. Here’s one of his PDFs on animal locomotion. Scroll down a bit and there’s loads of stuff on dogs.
Rigging Dojo’s quadruped rigging tutorialwill be a great starting point in terms of making an animator friendly rig, but if you’re aiming for realism then you’d have to change it a bit.
You should definitely learn about the muscles. The latissimus dorsi is an interesting one- covers the entire side of the ribcage and attaches to the dog’s front leg. The braciocephalicus is a real pain in the ass- it comes from the back of the dogs head and attaches to the front of its foreleg.