[Bf-committers] New force type patch: Spring (Farsthary)

bjornmose bjornmose at gmx.net
Wed Dec 16 01:47:52 CET 2009

Raul Fernandez Hernandez schrieb:
> Hi all :)
> Searching to add spring forces for the fluid particles I end up with a
> nice patch that adds also spring force as a new general force type that
> could be used like any other blender force: for objects, particles, etc.
> Needless to say the importance and wide use cases for spring forces in 3D,
> previously this functionality was aviable in Blender only in
> softbodies,cloth and constraints but with this patch could be extended to
> particle systems for many SFX's and also to objects, te posibilities are
> endless :)
>  Is interesting to note how the particle system integrate features from
> softbodies and fluids :)
>  I will send thi spatch also to Jahka for review and commit
>  Is very easy to implement and does not break any previous code, it only
> will need a new UI slider for spring rest length but I'm not good at UI
> coding, though it should be easy to add :)
>    http://www.pasteall.org/9806/diff
>                                                           Hope you like
> it,  cheers  
> Farsthary :)
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Hi Raul ,
hum .. still missing the point
to me it looks like a force field  ( potential )  .. having a minimum 
at  R ( which you define as rest length )
1. what is the point in having a potential  arranging  a mesh close to a 
S3 (sphere in 3D )
2. the lack of other forces .. like friction to surrounding media .. 
even internal friction ..  makes it look quite. say .incomplete
but still
may be i am missing the very spot, enlighten me

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