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Showing results for tags 'motion capture'.
Found 4 results
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Hi all, I've looked - but I can't figure out how to pin a hand in Houdini using Kinefx. I've got two situations: -My input motion capture has a person holding a mobile phone with both hands - I need to pin one of the hands to the other hand as they walk around so it looks like both hands are properly holding the phone. -Also some of my motion capture has a bad arm that twitches erratically at times. I'd like to pin the hand of that arm at those times and bypass the twitch. Does anyone have a suggestion of how to go about this. Or point me to where there's good info on this. Coming from Nuance, Motionbuilder, and Maya, what I'm looking for is referred to as pinning (or 'hand/foot constraint pinning') Can't find anything here in Houdini around those terms. -Sim
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Hi all, I've got a motion editing setup happening, but it gets really slow heavy at certain nodes. I was wondering if anyone here could have a look and point out any efficiency gains I could be making? I've been figuring out a workflow for doing motion editing (animation) of my mocap that gets transferred to a metahuman. (Because of issues I was having with Houdini'd retargetting, I ended up doing the basic retargetting in Maya. But I'm doing the motion editing in Houdini) It's all working well - Thanks to madebygeoff for getting me started - I have all the basics in there; fingers and posture correction. I've also got a constraint setup for locking/controlling the right hand. But when I start using it - by turning the blend from 0% - 100%, my framerate drops a great deal - The arm constraint is very heavy when I do use it. Hoping someone here could have a look and make a suggestion or two. I've attached my hip file, plus an example fbx to plug in to the top. 'cheers, Sim MotionEditing_TEST.hip seq_01_t3_Sup.fbx
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According to this old thread Houdini only accepts mocap data if its Acclaim, Biovision or Motion Analysis. I would like to try using some of the data from CMU http://mocap.cs.cmu.edu I can only see acronymns for tvd, c3d and amc Any mocap experts that might tell me whether I should have any luck with any of these formats?
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I am trying to work with Mocap data that I have recorded in Vicon Blade. I have an FBX of the solving setup that I have imported into Houdini and I have been able to work with it and get the setup where I want it to be, but I am running into an issue with file size. I am currently sitting at 189MB and I am pretty sure that about 95% of that is keyframe data. Unfortunately when I start working with the file it explodes in my memory and is becoming unwieldy. I am talking in the 25gb range. The Motion Capture data has placed a keyframe at every frame for all of the bones, which is definitely overkill. Is there any way of automatically reducing keyframes in Houdini? I have seen the tool in some other packages, but I am trying to figure out how to do it here. If there isn't a built in way to do it, is there any way I can delete keys in CHOPS, because I could see writing a VEX expression for doing it. Something along the lines of calculating the slopes and if the slope from one keyframe to the next is below a certain margin, delete. Or hell, I could just check concavity at each keyframe and only keep the ones where it changes, but I need to know if there is a way to delete the keyframes.
