catchyid Posted November 16, 2016 Share Posted November 16, 2016 Hi, When emitting particles from a fasting moving object, the particles look like cigarette puffs, i.e. instead of a continuous stream of particles I got discrete emission pattern (see attached). To solve the problem I've increased DOP network node substeps to 100, but that did not fix the problem! Also increased POP Solver min/max substeps to 100, but that did not fix the problem as well! Any advise? Thanks Quote Link to comment Share on other sites More sharing options...
Martin47 Posted November 16, 2016 Share Posted November 16, 2016 it's no necessary to increase the sub-steps... if your point count or topology doesn't change in the source, its more precise to use the birth interpolation method to "Match Topology". if not, you need to compute your points velocities first with a Trail SOP, and then, change the interpolation method to "use Point Velocity". 1 Quote Link to comment Share on other sites More sharing options...
catchyid Posted November 17, 2016 Author Share Posted November 17, 2016 Thanks Martin, that fixed it 1 Quote Link to comment Share on other sites More sharing options...
AlphaBird Posted July 2, 2017 Share Posted July 2, 2017 On 11/17/2016 at 0:43 AM, Martin47 said: it's no necessary to increase the sub-steps... if your point count or topology doesn't change in the source, its more precise to use the birth interpolation method to "Match Topology". if not, you need to compute your points velocities first with a Trail SOP, and then, change the interpolation method to "use Point Velocity". Hey Martin, I'm just a beginner. I'm using POP Location to emit particles which is moving fast so particles are not being emitted continuously but in discrete manner. Now where to use Trail sop? I'm not using any Source emitter. Can you explain how to do this step by step? Quote Link to comment Share on other sites More sharing options...
Martin47 Posted July 3, 2017 Share Posted July 3, 2017 Sure, have you already tried to change the "Jitter Birth Time" and "Interpolate Source" parameter? basically it creates particles with a random age and moves it according to their initial velocity, then the interpolation method decides where in the source to interpolate (forward or backward). look at the file. jitter-birth.hipnc 1 Quote Link to comment Share on other sites More sharing options...
catchyid Posted July 11, 2017 Author Share Posted July 11, 2017 Also, there is a tutorial on pops by side effects , I think it's a master class, that talks about these issues in details.... I am sure you can find it if you still need more info on this topic Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.