Hans Peter Posted May 24, 2017 Share Posted May 24, 2017 Hey, I'm trying to implement an old trick I used several times with older versions of houdini. Just trying to transfer a color attribute to some points placed in the center of the fractures pieces to use it as an active value in the dop network. Unfortunately nothings happenning. Some idea what could be wrong here? Quote Link to comment Share on other sites More sharing options...
Yon Posted May 24, 2017 Share Posted May 24, 2017 After you pack your fracture, you can wire into add sop and get your centroids. Or use the points used to fracture if your using voronoi. Then animate colour and set active to colour. Attribute transfer onto your packed geometry before sending to dops. Enable attribute override on rbdpackedobject and enter active. Quote Link to comment Share on other sites More sharing options...
Hans Peter Posted May 24, 2017 Author Share Posted May 24, 2017 (edited) Do you have an example file? That doesn't work here. I also deactivated packed geo but still isn't working. Edited May 24, 2017 by Heraklit Quote Link to comment Share on other sites More sharing options...
Hans Peter Posted May 24, 2017 Author Share Posted May 24, 2017 Ah, okay, I don't need an anctive value sop when I already transferred active values to the packed geo. Finally working. Quote Link to comment Share on other sites More sharing options...
Tyfx567 Posted May 28, 2017 Share Posted May 28, 2017 (edited) You are doing it a very old method that may not work all the time anymore. It won't work if you have animating geometry if you want to do an animating fracture. The best way to get information from sops now is using a sop solver in dops. This way you also can get many more attributes from sop that you can use to drive simulation as well. The sop solver also is nice because it doesn't require the attribute transfer value to remain on the object the entire time. In my file the sphere that is passing over the box doesn't remain over all the pieces. With your method if that remained the case the pieces would not move after the sphere goes past the box pieces. With the sop solver method it allows the pieces to remain active even if the sphere goes past it. You can preview what your attribute transfer is doing in sops and then copy that attribute transfer and paste it in the sop solver in dops. active value changing over time.hipnc Edited May 28, 2017 by Tyfx567 2 Quote Link to comment Share on other sites More sharing options...
craigls Posted August 16, 2017 Share Posted August 16, 2017 Thats seems a very cool way to do it Tyfx567, I tried the other way and my sim times go through the roof, shall try this way:) Quote Link to comment Share on other sites More sharing options...
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