Thread: [GD-General] what you look for in a physics engine coder...engine transaction

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[GD-General] what you look for in a physics engine coder...engine transaction

From: CAVEY G. <GER...@sg...> - 2004-07-19 14:51:53

Hi

My question is a bit OT but anyway ...
when you give someone the job to write the next generation
physics engine, what profiles do you look for?I m not sure a basic =
engineer
can fit the task.
Any experience with it ?
IMO nowadays we can no longer fake physics (for actions titles).

Second OT question what could be the price of a "good enough" 3D engine =
plus
the surrouding tools
+ plugins for 3d apps?
I heard the Quake3 engine cost was 500 000$ ,but this is (was ,domm3 is
going to bury it )
a ground breaking technology i know ...
And the price of a "good enough" physics engine?
When you sell such a technology how does it work? Do you have to sell =
some
support,
patchs,consulting ....?

Thanks in advance

GC.


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RE: [GD-General] what you look for in a physics engine coder...engine transaction

From: Jamie F. <ja...@qu...> - 2004-07-19 15:28:24

I won't attempt to answer the second question, although there seem to be =
a
number of reasonably good free physics engines out there :)

Re. things to look for in a physics coder, off the top of my head:

Necessary:

- I would want someone who had done it before. They would have to have
shipped a title with their physics in, or at the very least done _very_
convincing demos.
- Very strong maths (at least degree level).
- Ability to handle numerical accuracy issues (in practice, not just in
theory).
- An awareness of the general methods that get used in collision detectio=
n
(e.g. broad phase collision detection systems (i.e. all sorts of spatial
partitioning), narrow phase collision detection systems (primitive v.
primitive, understanding of the double dispatch problem, GJK, Minkowksi
sums, etc.))
- An awareness of the general methods that get used in collision resoluti=
on
(impulse methods, penalty methods, LCP, general numerical solvers and
degrees of freedom).
- An awareness of the research that's out there (e.g. Mirtich, Baraff, et=
c.)
- An understanding of the problem areas (e.g. stacking, coming to rest,
etc.)

Nice to have:

- Implemented physics in at least two significantly different ways.
- Familiarity with physics middleware.


Jamie


-----Original Message-----
From: gam...@li...
[mailto:gam...@li...]On Behalf Of
CAVEY GERARD
Sent: 19 July 2004 15:53
To: 'gam...@li...'
Subject: [GD-General] what you look for in a physics engine
coder...engine transaction


Hi

My question is a bit OT but anyway ...
when you give someone the job to write the next generation
physics engine, what profiles do you look for?I m not sure a basic engine=
er
can fit the task.
Any experience with it ?
IMO nowadays we can no longer fake physics (for actions titles).

Second OT question what could be the price of a "good enough" 3D engine p=
lus
the surrouding tools
+ plugins for 3d apps?
I heard the Quake3 engine cost was 500 000$ ,but this is (was ,domm3 is
going to bury it )
a ground breaking technology i know ...
And the price of a "good enough" physics engine?
When you sell such a technology how does it work? Do you have to sell som=
e
support,
patchs,consulting ....?

Thanks in advance

GC.


*************************************************************************
Ce message et toutes les pieces jointes (ci-apres le "message") sont
confidentiels et etablis a l'intention exclusive de ses destinataires.
Toute utilisation ou diffusion non autorisee est interdite.
Tout message electronique est susceptible d'alteration.
SG Asset Management et ses filiales declinent toute responsabilite au tit=
re
de ce message s'il a ete altere, deforme ou falsifie.

D=E9couvrez l'offre et les services de SG Asset Management sur le site
www.sgam.fr

				********

This message and any attachments (the "message") are confidential and
intended solely for the addressees.
Any unauthorised use or dissemination is prohibited.
E-mails are susceptible to alteration.
Neither SG Asset Management nor any of its subsidiaries or affiliates sha=
ll
be liable for the message if altered, changed or falsified.

*************************************************************************





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RE: [GD-General] what you look for in a physics engine coder...engine transaction

From: Jamie F. <ja...@qu...> - 2004-07-19 15:58:30

oh, and also some appreciation of things which currently aren't truly
realtime, but are getting there. Fluid dynamics, finite element analysis,
etc....

Jamie


-----Original Message-----
From: gam...@li...
[mailto:gam...@li...]On Behalf Of
Jamie Fowlston
Sent: 19 July 2004 16:29
To: gam...@li...
Subject: RE: [GD-General] what you look for in a physics engine
coder...engine transaction


I won't attempt to answer the second question, although there seem to be =
a
number of reasonably good free physics engines out there :)

Re. things to look for in a physics coder, off the top of my head:

Necessary:

- I would want someone who had done it before. They would have to have
shipped a title with their physics in, or at the very least done _very_
convincing demos.
- Very strong maths (at least degree level).
- Ability to handle numerical accuracy issues (in practice, not just in
theory).
- An awareness of the general methods that get used in collision detectio=
n
(e.g. broad phase collision detection systems (i.e. all sorts of spatial
partitioning), narrow phase collision detection systems (primitive v.
primitive, understanding of the double dispatch problem, GJK, Minkowksi
sums, etc.))
- An awareness of the general methods that get used in collision resoluti=
on
(impulse methods, penalty methods, LCP, general numerical solvers and
degrees of freedom).
- An awareness of the research that's out there (e.g. Mirtich, Baraff, et=
c.)
- An understanding of the problem areas (e.g. stacking, coming to rest,
etc.)

Nice to have:

- Implemented physics in at least two significantly different ways.
- Familiarity with physics middleware.


Jamie


-----Original Message-----
From: gam...@li...
[mailto:gam...@li...]On Behalf Of
CAVEY GERARD
Sent: 19 July 2004 15:53
To: 'gam...@li...'
Subject: [GD-General] what you look for in a physics engine
coder...engine transaction


Hi

My question is a bit OT but anyway ...
when you give someone the job to write the next generation
physics engine, what profiles do you look for?I m not sure a basic engine=
er
can fit the task.
Any experience with it ?
IMO nowadays we can no longer fake physics (for actions titles).

Second OT question what could be the price of a "good enough" 3D engine p=
lus
the surrouding tools
+ plugins for 3d apps?
I heard the Quake3 engine cost was 500 000$ ,but this is (was ,domm3 is
going to bury it )
a ground breaking technology i know ...
And the price of a "good enough" physics engine?
When you sell such a technology how does it work? Do you have to sell som=
e
support,
patchs,consulting ....?

Thanks in advance

GC.


*************************************************************************
Ce message et toutes les pieces jointes (ci-apres le "message") sont
confidentiels et etablis a l'intention exclusive de ses destinataires.
Toute utilisation ou diffusion non autorisee est interdite.
Tout message electronique est susceptible d'alteration.
SG Asset Management et ses filiales declinent toute responsabilite au tit=
re
de ce message s'il a ete altere, deforme ou falsifie.

D=E9couvrez l'offre et les services de SG Asset Management sur le site
www.sgam.fr

				********

This message and any attachments (the "message") are confidential and
intended solely for the addressees.
Any unauthorised use or dissemination is prohibited.
E-mails are susceptible to alteration.
Neither SG Asset Management nor any of its subsidiaries or affiliates sha=
ll
be liable for the message if altered, changed or falsified.

*************************************************************************





-------------------------------------------------------
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FREE Java Enterprise J2EE developer tools!
Get your free copy of BEA WebLogic Workshop 8.1 today.
http://ads.osdn.com/?ad_idG21&alloc_id=10040&op=3Dick
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FREE Java Enterprise J2EE developer tools!
Get your free copy of BEA WebLogic Workshop 8.1 today.
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Archives:
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