sebkaine Posted January 20, 2022 Share Posted January 20, 2022 Hi guys, i don't understand what is the internal math done by bendstiffness. i have a scene with stiffness set to 1 + stiffness multiplicator to 1. then i have a point attribute bendstiffness that i use as a scale multiplicator set between 10000 and 0.0001. i was expecting to get my stiffness between 10000 and 0.0001 but it give me weird values. to get what i want i had to bypass the feature and do it with a wrangle. I would be curious to know if someone could explain me why i get those strange values. I have attach a HIP that describe the pb. Thanks for your time Cheers E kStiffness.hip Quote Link to comment Share on other sites More sharing options...
sebkaine Posted January 20, 2022 Author Share Posted January 20, 2022 (edited) Ok gotcha : As effective changes in stiffness requires painting over orders of magnitude, this has a logarithmic effect. i don't exactly know what it is , but i'm sure it explain the problem. houdini doesn't do a scale with a basic mult but instead use logarithmic math. anyway i don't like it cause it introduce unexpected value that i have not ask. i will use the wrangle option to be sure to control exactly the value i want. Cheers Edited January 20, 2022 by sebkaine 1 Quote Link to comment Share on other sites More sharing options...
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