furtap Posted June 11, 2009 Share Posted June 11, 2009 Hello, I have a surface that is emitting particles, but I would like to be able to control the particle's life and initial velocity etc based on their colour (which is inherited from the surface). I tried to query their colour in the Source POP but it doesn't like that. If you see my file you'll see I have had some success if I have Emission type set to points but thats not really ideal. Any ideas anyone? Thanks. colour_par_emission.hipnc Quote Link to comment Share on other sites More sharing options...
cellchuk Posted June 11, 2009 Share Posted June 11, 2009 I made a quick edit to your file where I drive the initial velocity and the life expectancy by using RED colour value... colour_par_emission_edited.hipnc I hope this helps cheers Quote Link to comment Share on other sites More sharing options...
furtap Posted June 11, 2009 Author Share Posted June 11, 2009 Thanks that works great. I made a quick edit to your file where I drive the initial velocity and the life expectancy by using RED colour value...colour_par_emission_edited.hipnc I hope this helps cheers Quote Link to comment Share on other sites More sharing options...
cellchuk Posted June 11, 2009 Share Posted June 11, 2009 cool Quote Link to comment Share on other sites More sharing options...
Michael1 Posted June 16, 2009 Share Posted June 16, 2009 I have a different question in regards to particles. I have one group of moving particles and when they come into proximity of static group of particles I want them to stop. At the moment I am doing this by copying spheres onto the static group and then testing for a collision. This seems like a bad way of doing this, is there a sort of 'field' or something I can create around the static group which will stop the particles if then enter this? Cheers. Quote Link to comment Share on other sites More sharing options...
deecue Posted June 17, 2009 Share Posted June 17, 2009 there's quite a few things you could do in that instance.. you could create a bounding box or sphere from the static particles and reference them inside of pops. you could use a limit or softlimit pop. you could copy metaballs and use attractors with negative forces (not recommended). you could create groups based off the interaction between the two sources through a collision pop, limit, soft limit, proximity (radius), or just a standard group pop.. Then use those defined groups to do whatever you'd like: apply drag, reduce velocity, apply speed limit, etc.. hth, dave Quote Link to comment Share on other sites More sharing options...
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