fixxorion Posted June 22, 2003 Share Posted June 22, 2003 Hi, While continuing to explore Houdini particles, I've run into yet another annoying problem. All I want to do is have some particles run zig zaggedly down an object, but I can't get it to work! In Maya, all you do is set the object you want the particles to stick to as the goal, set a few attributes, and you're all set. How would I do this with POPs? Here's where I am now...I'm emitting particles from the surface of the object I want to stick to, so all the particles that are created are on the object. Now how do I make the particles slide along the object? I've tried creating a Collision POP, but don't you need the particles to actually run into the object? I've tried changing the state...everything I can think of, but I still can't get it to work. Somebody please help me! And thank you all very much for all the help you've given so far...much appreciated. Later, fixxorion Quote Link to comment Share on other sites More sharing options...
michael Posted June 23, 2003 Share Posted June 23, 2003 http://www.vislab.usyd.edu.au/sidefx/houdi...ects/index.html Quote Link to comment Share on other sites More sharing options...
fixxorion Posted June 23, 2003 Author Share Posted June 23, 2003 Thank you for your efforts, but... I've watched those videos, but they are just throwing particles onto an object and having them slide off. How are you supposed to have them stick to an object if they're already on the object and have no velocity? I want to generate a particle from the surface having it stick to it and then control its movement along the surface. This is VERY easy to do in Maya: simply generate the particle and have the surface as a goal. Then you can manipulate the particle's goalU and goalV properties to control the particles flow over the surface. Thanks, fixxorion Quote Link to comment Share on other sites More sharing options...
Wolfwood Posted June 23, 2003 Share Posted June 23, 2003 Maybe try the Creep POP? jim. Quote Link to comment Share on other sites More sharing options...
fixxorion Posted June 24, 2003 Author Share Posted June 24, 2003 Hi, Wolfwood: The Creep POP worked! Thanks much! Thank you all for the help! Later, fixxorion Quote Link to comment Share on other sites More sharing options...
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