arthurG Posted September 29, 2014 Share Posted September 29, 2014 Hello, the pivot of a packed piece is not calculated at the first frame when its active value is set to 0. I can use v@pivot = v@P as initialization but pivot and P are not exactly the same. Is there a way to force the calculation at the first frame or to compute pivot like the bullet solver ? Thanks, Arthur Quote Link to comment Share on other sites More sharing options...
rayman Posted September 29, 2014 Share Posted September 29, 2014 What is your version of houdini? While ago there was a bug that prevented packed prims to compute COM when solve on creation frame was on. What I`m doing to compute COMs is to create another DOP network with just packed objects and bullet solver, turn on create active objects and solve on creation frame. You can also turn off Make Objects Mutual Affectors to remove pieces collisions at first frame and set bullet substeps and constraint iterations to 1 to speed things up. Quote Link to comment Share on other sites More sharing options...
arthurG Posted September 29, 2014 Author Share Posted September 29, 2014 This is houdini 13.0.476. When Solve on creation frame is on, all coms are calculated except the ones on inactive pieces. Thanks for the tip for com calculation, it works like a charm! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.