[Sidefx-houdini-list] Maya .anim curves in Houdini

Edward Lam edward at sidefx.com
Wed Feb 21 12:51:22 EST 2007

I helped someone do this before as well. The formulas for cubic interpolation 
can be found here:



Lucio Flores wrote:
> I wrote something like that at DD years ago. YOu need something to dump a text
> version of the keyframe data onto disk. Most animation channels are just cubic
> hermite or bezier functions, so its just a matter of getting the
> slope/time/value info, and correctly translating that into houdini. Some
> packages have the slope derivative as value per frame, or value per second, so
> there may be a fps multiplier in there. Using that was enough to translate
> keyed channels between softimage, lightwave, maya, and houdini. 
> --- Andrew D Lyons <tstexture at gmail.com> wrote:
>> Hi,
>> Have any studios successfully found a way to accurately convert Maya
>> keyframes into Houdini keyframes?
>> If so - how was it done?
>> My current guess is that we would need the HDK to replicate Maya's
>> curve functions as Houdini curve functions. Not sure if there is other
>> keyframe infrastructure needed though as well...
>> Cheers
>> -- 
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