nosferatu_037 Posted November 27, 2007 Share Posted November 27, 2007 Ok, I've tried everything that has crossed my mind to try and solve this problem,but I haven't found a solution. Can you please tell me how can I stick my emitted particles onto their birth position while the geometry is deforming? I've included a hip file. Thanx sferaTwist.hip Quote Link to comment Share on other sites More sharing options...
Dhiren Shah Posted November 27, 2007 Share Posted November 27, 2007 Hey nosferatu_037. I am attaching a file with the solution. I hope this is what u wanted. sferaTwist_Vtest.hipnc Quote Link to comment Share on other sites More sharing options...
symek Posted November 27, 2007 Share Posted November 27, 2007 Use collision POP with "Stick on Collision" or use Scatter SOP if you don't need particles but points instead. cheers, sy. Quote Link to comment Share on other sites More sharing options...
nosferatu_037 Posted November 27, 2007 Author Share Posted November 27, 2007 Hey nosferatu_037.I am attaching a file with the solution. I hope this is what u wanted. Thanx Dhiren Shah, This is something similar to what I'm trying to achieve,but the main problem is: Lets say that I'm emitting particles from a black-white texture,black=no particles,white=yes particle, and I want that initial position to remain as it is,and in your scene the particles change when you go from frame 1 to frame 2. It looks like they're changing their position. Can you do in houdini something like maya's particle goal? Just stick particles to their U,V birth position on surface that deforms? Quote Link to comment Share on other sites More sharing options...
nosferatu_037 Posted November 27, 2007 Author Share Posted November 27, 2007 Here's a scene I put together just to point out the problem: H9 I've managed to make goalUV for particles,but as soon as you switch to frame 2 the particles move their position,and look like they were born from black not from white color? Why is this happening? goalUV.hip Quote Link to comment Share on other sites More sharing options...
symek Posted November 27, 2007 Share Posted November 27, 2007 (edited) To stick particles to a point in UV space of a geometry use Creep POP. Sorry, didn't get your problem before hope this help, sy. creep_POP.hipnc Edited November 27, 2007 by SYmek Quote Link to comment Share on other sites More sharing options...
wixman Posted November 30, 2007 Share Posted November 30, 2007 To stick particles to a point in UV space of a geometry use Creep POP. Sorry, didn't get your problem before hope this help, sy. is there any way you can reduce the strength of the creep node... so the particle is attracted to the surface and still creeping round it? like the goal strength in maya... ive looked into the attractor node... i want particles to creep round a surface but still be effected by forces Quote Link to comment Share on other sites More sharing options...
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