toptop Posted February 13, 2013 Share Posted February 13, 2013 Hi guys! Im a 3ds max(Thinking particles) user and my company require me to shift to Houdin. Is there a way to do this in houdini? I tried using rbd and bullet but it show weird result like in first frame it explode or all of the pre fractude object starting to move. Can anyone share a similar hip file similar to my test in thinking particles? Thanks! Quote Link to comment Share on other sites More sharing options...
Netvudu Posted February 13, 2013 Share Posted February 13, 2013 (edited) Your example is very simple to create in Houdini..if you know what you´re doing. The "exploding frame" is a very common problem (and forum question) regarding bullet. A simple search will give a LOT of threads talking about this at this very forum. Roughly, you have to avoid concave shapes to be able to use Bullet properly, otherwise you get the first frame explotion (for instance,deactivate interior detail on the Voronoi Fracture SOP). To get a similar effect to the shown video you need to use Glue Networks. On the shelf there is a tool called "Glue Adjacent" that you want to use. All this will get you started, but I´m afraid you have a lot of material to review if you don´t know what´s going on. Edited February 13, 2013 by Netvudu 1 Quote Link to comment Share on other sites More sharing options...
fayal Posted February 13, 2013 Share Posted February 13, 2013 (edited) hi Christopher, you can see this http://www.sidefx.co...ghlight=#125051 and i make fastly this file its draft but i vise just the idea here i use another method with particle no dop my be its near to thin particles in max destruction.hipnc Edited February 13, 2013 by fayal 1 Quote Link to comment Share on other sites More sharing options...
toptop Posted February 14, 2013 Author Share Posted February 14, 2013 (edited) Hi guys thanks for your help i try using the Glue for RBD sim and emit some debris. Any suggestion on how to improve this? -collisions of debris as rbd not particle or point collision -randomization of instance/copy Thanks! RBD Glue Study_v2.hipnc Edited February 14, 2013 by toptop Quote Link to comment Share on other sites More sharing options...
Ankit Sinha Posted February 14, 2013 Share Posted February 14, 2013 For first problem, you have to convert points from pop to rbd points. I haven't tried it myself yet but i think this is one way. here is a thread which might be helpful for second, you can use stamp function with help of copy node here is nice tutorial on it. 1 Quote Link to comment Share on other sites More sharing options...
fayal Posted February 14, 2013 Share Posted February 14, 2013 nice i will found you the file again you need download the folder debris also and put it in your houdini file path . this solve your second problem but for the first one i dont know how solve this ? and i have a question in my opinion debris is a small objects . why you need to make many hundreds of objects very small collide like a rbd (simulation time )and dont use pop for that.? see this video i think its fine with pop. debris.rar RBD Glue Study_v3.hipnc debris.avi 1 Quote Link to comment Share on other sites More sharing options...
toptop Posted February 14, 2013 Author Share Posted February 14, 2013 You have a point there and agree with that its just im kinda used to thingking particles where everything is rigidbody collision. Anyways Awesome awesome awesome tips again! Thanks for your help guys!cant wait to try this on my effects shoots! Quote Link to comment Share on other sites More sharing options...
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