identifying space of bone matrices
Posted: Sat Mar 02, 2019 6:19 pm
I am trying to analyze bone information. Weirdly this format stores 5 matrices for each bone. I know that the 1st matrix is the inverse modelspace bind pose. I also know that the 2nd matrix is the modelspace bind pose. Now I'm stuck trying to identify the last 3 matrices. My guess is one of it is the localspace and inverse localspace bind pose. I have no idea on what the 5th one could be.
Here are some of the data: (taken through Noesis)
Once I do find out what those last 3 matrices are I'll also need to find out how to convert my modelspace bones to that space.
Thank you.
Here are some of the data: (taken through Noesis)
Code: Select all
root_bone | parent: -1
((0.0, -0.0, -1.0), (-0.0, 1.0, -0.0), (1.0, -0.0, 0.0), (-0.7449899911880493, -19.03723907470703, -0.0)) // inverse modelspace bindpose
((0.0, 0.0, 1.0), (0.0, 1.0, 0.0), (-1.0, 0.0, 0.0), (0.0, 19.03723907470703, -0.7449899911880493)) // modelspace bindpose
((1.0, 0.0, 0.0), (0.0, 1.0, 0.0), (0.0, 0.0, 1.0), (0.0, 0.0, 0.0)) // unknown
((0.0, 0.0, 1.0), (0.0, 1.0, 0.0), (-1.0, 0.0, 0.0), (0.0, 19.03723907470703, -0.7449899911880493)) // unknown
((0.04737327992916107, -0.022383077070116997, 0.9986264109611511), (0.007453800644725561, 0.9997289776802063, 0.02205418422818184), (-0.9988494515419006, 0.006398778408765793, 0.04752727970480919), (-0.06532999873161316, 17.62476921081543, 4.6052398681640625)) // unknown
bone_1 | parent: root_bone
((1.0, -0.0, 0.0), (-0.0, 1.0, -0.0), (0.0, -0.0, 1.0), (-0.0, -0.06299000233411789, 0.7449899911880493))
((1.0, 0.0, 0.0), (0.0, 1.0, 0.0), (0.0, 0.0, 1.0), (0.0, 0.06299000233411789, -0.7449899911880493))
((1.0, 0.0, 0.0), (0.0, 1.0, 0.0), (0.0, 0.0, 1.0), (0.0, 0.0, 0.0))
((0.0, 0.0, -1.0), (0.0, 1.0, 0.0), (1.0, 0.0, 0.0), (0.0, -18.9742488861084, 0.0))
((0.9999999403953552, -1.8884044266087585e-06, -6.035664682713104e-06), (1.8795659570969292e-06, 1.0, -1.4686231679661432e-06), (6.036471859260928e-06, 1.4666445622424362e-06, 1.0), (-0.0653049498796463, 0.06299915909767151, 4.6053595542907715))
bone_2 | parent: root_bone
((-0.0, 1.0, 0.0), (1.0, 0.0, 0.0), (0.0, -0.0, -1.0), (-19.03723907470703, -0.0, -0.30254000425338745))
((-0.0, 1.0, 0.0), (1.0, 0.0, 0.0), (-0.0, 0.0, -1.0), (0.0, 19.03723907470703, -0.30254000425338745))
((1.0, 0.0, 0.0), (0.0, 1.0, 0.0), (0.0, 0.0, 1.0), (0.0, 0.0, 0.0))
((0.0, 0.0, 1.0), (1.0, 0.0, 0.0), (0.0, 1.0, 0.0), (-0.44244998693466187, 0.0, 0.0))
((-0.022383077070116997, 0.9986264109611511, 0.04737327992916107), (0.9997289776802063, 0.02205418422818184, 0.007453800644725561), (0.006398778408765793, 0.04752727970480919, -0.9988494515419006), (-0.08629030734300613, 17.621471405029297, 5.047180652618408))
bone_3 | parent: bone_2
((0.0, 0.9936618804931641, 0.11241021752357483), (1.0, 0.0, -0.0), (-0.0, 0.11241021752357483, -0.9936618804931641), (-21.186338424682617, -0.0, -2.9292166233062744))
((-0.0, 1.0, -0.0), (0.9936618804931641, 0.0, 0.11241021752357483), (0.11241021752357483, -0.0, -0.9936618804931641), (-0.0, 21.381330490112305, -0.5290899872779846))
((1.0, 0.0, 0.0), (0.0, 0.9999980926513672, 2.9190516670496436e-10), (0.0, -2.9190516670496436e-10, 0.9999980926513672), (0.0, 4.077511766809039e-05, -1.0092104503200972e-06))
((0.9936618804931641, 0.0, 0.11241021752357483), (0.0, 1.0, 0.0), (-0.11241021752357483, 0.0, 0.9936618804931641), (2.3440914154052734, 0.0, 0.22654998302459717))
((-0.0023906442802399397, 0.9987384080886841, 0.05015873908996582), (0.9899377822875977, 0.00946025736629963, -0.14118656516075134), (-0.14148297905921936, 0.04931650310754776, -0.9887115359306335), (-0.1280258744955063, 19.966615676879883, 4.835890769958496))
...
Thank you.