On this topic, what's a good way to grow the particles "organically". For example, have particles grow or change outwardly from a point of origin? Similar to how a moss or other growth would encompass an object.
On Tue, Jan 29, 2013 at 1:32 PM, Rob Chapman <tekano....@gmail.com> wrote: > not really :) > > so this move to closest location now worked as expected then or not? if > the 'hand' or surface is moving or deforming you could also account for a > velocity force from the closest location as well. point position is not > the only thing you can get from a location. > > > On 29 January 2013 18:13, Nuno Conceicao <nunoalexconcei...@gmail.com>wrote: > >> This actually gives an undesired result, basically the particles kind of >> stay inert not really following the surface (that is deforming/moving >> underneath) imagine u have a ball on your hand and move it quickly, the >> ball inertia makes it stay where it is then it drops/sticks to the closest >> surface (could be your other hand or the floor) >> :) >> >> What i really want is for them to move on the skin surface, lets say from >> the tip of your index finger to the base of the finger, while your hand is >> moving... >> Hope this makes my point a bit clearer :) >> >> >> >> >> On Tue, Jan 29, 2013 at 5:39 PM, Sandy Sutherland < >> sandy.sutherl...@triggerfish.co.za> wrote: >> >>> If you use the get closest location - then the position it returns you >>> can feed right into a self.PointPosition set data node - if you type into >>> the search box 'set point position' then you should find a node. If you >>> put that setup after any other forces or move nodes, then it will make the >>> movements then stick the points to the surface. >>> >>> S. >>> >>> * * >>> Sandy Sutherland <sandy.sutherl...@triggerfish.co.za> | Technical >>> Supervisor >>> <http://triggerfish.co.za/en> >>> <http://www.facebook.com/triggerfishanimation> >>> <http://www.twitter.com/triggerfishza> >>> ------------------------------ >>> *From:* softimage-boun...@listproc.autodesk.com [ >>> softimage-boun...@listproc.autodesk.com] on behalf of Nuno Conceicao [ >>> nunoalexconcei...@gmail.com] >>> *Sent:* 29 January 2013 19:31 >>> >>> *To:* softimage@listproc.autodesk.com >>> *Subject:* Re: Surface Flowing Particles >>> >>> Sorry, Rob, not really sure what you mean with "set closest location" >>> >>> >>> On Tue, Jan 29, 2013 at 5:02 PM, Rob Chapman <tekano....@gmail.com>wrote: >>> >>>> also a get closest location (your surface) > set closest location >>>> will stick your particles to the surface but still allow them to move >>>> around with forces and simulation. >>>> >>>> >>>> >>>> On 29 January 2013 16:57, Renaud Bousquet <renaud.bousq...@modusfx.com> >>>> wrote: >>>> > Hello, >>>> > >>>> > Something like this could help you for particles movements. >>>> > http://vimeo.com/36709750 >>>> > >>>> > Create a vector flow then use it as a force for your particles via >>>> closest >>>> > location. >>>> > Hope it can help you! >>>> > >>>> > RB >>>> > >>>> > >>>> > On 29/01/2013 11:14 AM, Nuno Conceicao wrote: >>>> >> >>>> >> Hi guys, just came across this task where basically I need to create >>>> a >>>> >> kind of growing particles effect (Ex: foam/bubbles) where the >>>> particles >>>> >> move, multiply and grow on a deforming surface. >>>> >> >>>> >> Basically, cant use stick to surface, flow around surface also >>>> doesnt work >>>> >> since the particles need to kind of stay on the surface at all >>>> times. Cant >>>> >> get Slide on surface to work properly too. >>>> >> >>>> >> Using an expanding weight-map kind of gets something close but quite >>>> >> different to what i wish to achieve, the problem is that the >>>> particles >>>> >> should also move and slide, so they cant be stuck on the surface, >>>> but follow >>>> >> its deformation.. >>>> >> >>>> >> I also tried a process using states to make the particles spawn once >>>> they >>>> >> achieve a certain size, pop into 2 or 3 smaller bubbles which in >>>> turn pop >>>> >> again into smaller ones, but couldn't get them to follow the surface >>>> >> properly. >>>> >> >>>> >> I guess that might be several approaches for the issue, maybe someone >>>> >> knows a compound that does something similar that could maybe be >>>> adapted to >>>> >> this purpose. >>>> >> >>>> >> Cheers >>>> >> >>>> >> Nuno >>>> > >>>> > >>>> > >>>> >>> >>> >> >
