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Matt Gough Blog [closed]: walking 102

Tuesday, Jul 20 2004, 05:36

"walking 101" Previous | Main | Next "impulse to notation"

because xdsn maps both bones and limbs it will not fit all avatar configuration. for ease of use and mapping two walk scripts have been created: the joint script and the limb script. Unlike xstep the two scripts exclude the upper torso, this allows for freedom of the upper body whilst in motion. if a natural arm movement is needed an script can be used along side the walk script to achieve the desired effect.

rather than putting up both scripts I will present the joint script alone. the limb script is a development of the joint scripts bust should be considered separately.


foot_l





foot_l:foot_r


foot_r


the above code is given only as a basic structure. you will notice that there are no impulse elements etc etc. if you examine the actions whilst walking you should be able to work out both potential values for the impulse elements and how the script works in principle.

as you can see from the code the element is used to describe the transitions and generate more life like scripts. as yet I have been unable to find a human markup language that has a) human accurate scripts and b) a weight transfer or element.

this is a list of the xml markup languages that could be used for dance notation I have found to date:

I do not believe that any of these notations currently fulfil the needs of the dance community for the purposes of notation. further I consider that xdsn offers a more accurate, flexible method of avatar animation than the notations previously developed.

note: the xdsn script is a single step cycle that ends to an open position. to bring the legs together a close step 'cycle' or script is needed. to continue walking the left side step scripts is used and alternates or cycles with the right hand script.

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