fxjungle Posted January 17, 2012 Share Posted January 17, 2012 Hi, I was wondering if anyone could point me in the right direction to accomplish an effect like the one emFlock plug In for ICE does. here is a link http://www.mootzoid.com/wb/pages/softimagexsi/emflock2.php Thanks Quote Link to comment Share on other sites More sharing options...
3dbeing Posted January 17, 2012 Share Posted January 17, 2012 Hi, I was wondering if anyone could point me in the right direction to accomplish an effect like the one emFlock plug In for ICE does. here is a link http://www.mootzoid.com/wb/pages/softimagexsi/emflock2.php Thanks From scratch that will be quite a task, but to get started, learn about boids. Quote Link to comment Share on other sites More sharing options...
Macha Posted January 17, 2012 Share Posted January 17, 2012 (edited) I'd be tempted to use a popsolver and sopsolver setup. The reason being that you could then build pointcloud based forces and that might be more predictable and versatile than just a popnet. A few days ago there was a post that included a setup for generating force fields with charges. I think that perhaps something interesting could be done with this. You could also build a rule-based system. Give each particle a field of view and a viewing distance and other such things and let them run about. I think it is definitely possible but you have to know what behavior you want. Edited January 17, 2012 by Macha Quote Link to comment Share on other sites More sharing options...
3dbeing Posted January 17, 2012 Share Posted January 17, 2012 (edited) I'd be tempted to use a popsolver and sopsolver ... The reason being that you could then build pointcloud based forces and that might be more predictable and versatile than just a popnet. I think someone said; a popnet is just a sopsolver. So what benefits would you get from popsolver in DOPs? *edit* I mean can't you just build a pc force system in vops? Edited January 17, 2012 by 3dbeing Quote Link to comment Share on other sites More sharing options...
Macha Posted January 17, 2012 Share Posted January 17, 2012 (edited) If you want to use pc in a popnet you get into trouble easily. For example, I think you cant use the particles themselves as a pc. So, you have to go outsi the pop and then back into on the next timestep. You can only do that in a dops. A number of things like that simply become easier in dops because you can use all the sop context tools. In fact, you could just build it all in a sopsolver and forget particles. Finding nearest points or calculating densities, gradients, laplaciens, any kind of averages or fields becomes easier in sops, or if you can use volumes. Edited January 17, 2012 by Macha Quote Link to comment Share on other sites More sharing options...
dennis.albus Posted January 17, 2012 Share Posted January 17, 2012 (edited) There's a nice tutorial over at cmivfx about flocking systems in Houdini. It is also using boids behaviours which are basically not that hard to implement when you know your way around the Sop Solver and VEX/VOPS. Still I think it's a good tutorial which helps you build a modular flocking system. Beware however: The implementation is done in VEX code. http://cmivfx.com/tutorials/view/330/Houdini+Flocking+Systems -dennis Edited January 17, 2012 by dennis.weil 1 Quote Link to comment Share on other sites More sharing options...
gaurav Posted January 17, 2012 Share Posted January 17, 2012 If you want to use pc in a popnet you get into trouble easily. For example, I think you cant use the particles themselves as a pc. So, you have to go outsi the pop and then back into on the next timestep. You can only do that in a dops. A number of things like that simply become easier in dops because you can use all the sop context tools. In fact, you could just build it all in a sopsolver and forget particles. Finding nearest points or calculating densities, gradients, laplaciens, any kind of averages or fields becomes easier in sops, or if you can use volumes. Interesting. So far i have been under impression that "POP Solver" inside "Dops" is kind of secondary trick to accomplish particle caching for interactive playbacks. Quote Link to comment Share on other sites More sharing options...
fxjungle Posted January 17, 2012 Author Share Posted January 17, 2012 I'd be tempted to use a popsolver and sopsolver setup. The reason being that you could then build pointcloud based forces and that might be more predictable and versatile than just a popnet. A few days ago there was a post that included a setup for generating force fields with charges. I think that perhaps something interesting could be done with this. You could also build a rule-based system. Give each particle a field of view and a viewing distance and other such things and let them run about. I think it is definitely possible but you have to know what behavior you want. Thanks guys for all the responses. I just have a question about this, when you say use a popsolver and sopsolver, you mean inside of DOPS? Quote Link to comment Share on other sites More sharing options...
pclaes Posted January 17, 2012 Share Posted January 17, 2012 This keeps 'popping' up. you might find this interesting: Quote Link to comment Share on other sites More sharing options...
fxjungle Posted January 20, 2012 Author Share Posted January 20, 2012 Guys I have to say that I can't thank you enough for your help, it truly is awesome to know that this community is made of people who are willing and are also kind about sharing their knowledge. This will have to take a back seat to the project I am working on, but many thanks! Quote Link to comment Share on other sites More sharing options...
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