Re: [Algorithms] Formula for Damping f times

[Jeff R. <je...@8m...>]

x *= e ^ k * dt  (where k < 0)  is my good old standby. Works well with
variable time steps. The call to exp() can be expensive, but if you have a
lot of things decaying at the same rate you can compute exp( k * dt ) once
for the frame and keep reusing it.
cheers,

jeff

On Fri, Jun 5, 2009 at 8:01 AM, <Pau...@sc...> wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
>
> > I did get up at 5am this morning so I apologize if I missed/messed
> something
> > here, but that appears a fair way from zero.
>
> Yep, looks like i'm having a bad day today :D I think i need to go back to
> bed... Thats fridays for you.... :)
> **********************************************************************
> This email and any files transmitted with it are confidential and intended
> solely for the use of the individual or entity to whom they are addressed.
> If you have received this email in error please notify pos...@sc...
> This footnote also confirms that this email message has been checked for
> all known viruses.
> Sony Computer Entertainment Europe Limited
> Registered Office: 10 Great Marlborough Street, London W1F 7LP, United
> Kingdom
> Registered in England: 3277793
> **********************************************************************
> P Please consider the environment before printing this e-mail
>
> -----BEGIN PGP SIGNATURE-----
> Version: PGP Universal 2.9.1 (Build 287)
> Charset: US-ASCII
>
> wsBVAwUBSikXHXajGqjtoMHxAQh1ZwgAsTDMOmp5R/IdHqDBxpt+oRuULS2BGHsO
> R6BNERdVLXKwhAbFkmD/U4Z//zls1O6mEDVHkHDWw0qK2BUYRYBfkzQJYpLWWXK5
> AVnID6Txw3i1FlNedXyO3H/mhNPJCQRhn4VJ+llHKDeVJh7F4grbeIcKXpFOyzxl
> wJsn4o3I+2beA0I/jPawe2rI+lcPo6ayFFPBnQcm+qWm0rfgJQ3xwH/3Wu5QQURG
> uN7pMacUBB0tVJX/kaMAkW7sUtdNaVEqHV9dTlvHcm7o7biyPTyroTTDh/iZwfUM
> SDKPwIi+dmQjRQxjErAiEuRR3L540OflZmtCaWXH9UaQmAlqWHVeKg==
> =p6By
> -----END PGP SIGNATURE-----
>
>
> ------------------------------------------------------------------------------
> OpenSolaris 2009.06 is a cutting edge operating system for enterprises
> looking to deploy the next generation of Solaris that includes the latest
> innovations from Sun and the OpenSource community. Download a copy and
> enjoy capabilities such as Networking, Storage and Virtualization.
> Go to: http://p.sf.net/sfu/opensolaris-get
> _______________________________________________
> GDAlgorithms-list mailing list
> GDA...@li...
> https://lists.sourceforge.net/lists/listinfo/gdalgorithms-list
> Archives:
> http://sourceforge.net/mailarchive/forum.php?forum_name=gdalgorithms-list
>



-- 
--------------------------------------------
Jeff Russell
Engineer, 8monkey Labs
www.8monkeylabs.com
--------------------------------------------