bah, don't have the time allocated for this, it's a quick design thing, i can 'convince' them that its better if the trails fade out rather than shrink
another time perhaps a _____ From: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Gustavo Eggert Boehs Sent: 05 March 2014 17:25 To: softimage@listproc.autodesk.com Subject: Re: shrinking strands It really wont Adrian. See, if you would try to simpto rescale a set of point positions in object space, they would move. What you could do is get the length from each segment and find out where exactly you want to cut it based on length. Not trivial but I think Kristinka does it. Or you could scale the whole thing but you would have to scale the point position array respective to the particle ((point position array - particle point position)*scale factor + particle point position). Scale factor would be = newlength/oldlength. First solution might be really what you are going after. Em quarta-feira, 5 de março de 2014, adrian wyer <adrian.w...@fluid-pictures.com> escreveu: i thought this might work...maybe i'm just not getting it? a -----Original Message----- From: softimage-boun...@listproc.autodesk.com <javascript:;> [mailto:softimage-boun...@listproc.autodesk.com <javascript:;> ] On Behalf Of Grahame Fuller Sent: 05 March 2014 16:39 To: softimage@listproc.autodesk.com <javascript:;> Subject: RE: shrinking strands StrandLength is just a custom attribute that gets set by some of the stand compounds as a convenience, e.g., if you want to use it to drive something else. It doesn't actually control the strand length, it's just the sum of deltas in the StrandPosition array. If you want to make the strand shrink, you can remove the last item from the StrandPostion array instead. gray From: softimage-boun...@listproc.autodesk.com <javascript:;> [mailto:softimage-boun...@listproc.autodesk.com <javascript:;> ] On Behalf Of adrian wyer Sent: Wednesday, March 05, 2014 11:29 AM To: softimage@listproc.autodesk.com <javascript:;> Subject: shrinking strands quick question (work goes on even after yesterday) i have a particle system firing points that have strands trailing after them, they stick to a surface on collision i have a state machine which, for starters, won't let me use "IsStuck" as a trigger, i can work around this, but it's bloody annoying the problem is that once the particle enters state 1, IE is stuck on the floor, i want the strand trail to shrink over time i have tried starting a timer on enter state 1, then grabbing values from the timer and subtracting them from .strandlength, but it only shrinks on the first frame, even though this is plugged into execute on every frame i can post a scene i f someone fancies having a look, or if anyone knows how to plot rocket trajectories and have them fade on impact, i'm all ears! thanks Adrian Wyer Fluid Pictures 75-77 Margaret St. London W1W 8SY ++44(0) 207 580 0829 adrian.w...@fluid-pictures.com <javascript:;> <blocked::blocked::blocked::blocked::mailto:ad <javascript:;> rian.w...@fluid-pictures.com <javascript:;> > www.fluid-pictures.com<blocked::blocked::blocked::blocked::http://www.fluid- pictures.com/> Fluid Pictures Limited is registered in England and Wales. Company number:5657815 VAT number: 872 6893 71 -- Gustavo E Boehs Dpto. de Expressão Gráfica | Universidade Federal de Santa Catarina | <http://www.gustavoeb.com.br/> http://www.gustavoeb.com.br/
