[Bf-gamedev] New Bullet version and Featherstone

[Mitchell Stokes]

For BGE dev discussion we usually just use the general Blender dev mailing
list (bf-committers). If we get too much BGE traffic there, we can look
into a separate mailing list.

--Mitchell Stokes


On Sat, Nov 16, 2013 at 12:51 PM, Sean Olson <seanolson at gmail.com> wrote:

> I'm actually curious if this could double as that list - the list is
> pretty quiet - I'm seeing just a few emails a week.  If it gets too crazy
> then perhaps split off a bf-bge list?  Thoughts?
>
> -Sean
>
>
> On Fri, Nov 15, 2013 at 10:40 PM, Jacob Merrill <
> blueprintrandom1 at gmail.com> wrote:
>
>> May we start a BGE Dev mailing list?
>>
>> Separate kickstarters for BGE features?
>>
>> There actually is a community of  people that love the bge and would pay
>> for it.
>>
>>
>> On Sat, Nov 2, 2013 at 8:59 PM, Jacob Merrill <blueprintrandom1 at gmail.com
>> > wrote:
>>
>>> Where is the Bge mailing list?
>>> On Nov 2, 2013 8:58 PM, "Daniel Stokes" <kupomail at gmail.com> wrote:
>>>
>>>> As a reminder, this mailing list is not intended for requesting BGE
>>>> specific features. It is more to discuss improvements to Blender for use in
>>>> developing game assets.
>>>>
>>>> Regards,
>>>> Daniel Stokes
>>>>
>>>>
>>>> On Sat, Nov 2, 2013 at 2:10 PM, Jacob Merrill <
>>>> blueprintrandom1 at gmail.com> wrote:
>>>>
>>>>> The new Bullet 2.82 SDK is available for download. It allows for
>>>>> higher quality physics simulation, suitable for robotics, using the
>>>>> Featherstone articulated body algorithm. The release also introduces a new
>>>>> Mixed Linear Complementarity Problem (MLCP) solver interface, with various
>>>>> direct solver implementations. Read more here.
>>>>>
>>>>> Our focus is now on integrating all Bullet 2.x features into the
>>>>> upcoming Bullet 3.x SDK. You can learn more about its progress in our
>>>>> SIGGRAPH course notes on GPU rigid body simulation at the Multithreading
>>>>> and VFX website.
>>>>>
>>>>> So in 1 paragraph they talked about both multithreading and
>>>>> Featherstone,  this may be why I was confused,
>>>>>  On Nov 1, 2013 12:20 PM, "Arnaud Degroote" <arnaud.degroote at laas.fr>
>>>>> wrote:
>>>>>
>>>>>> On 01/Nov - 09:53, Jacob Merrill wrote:
>>>>>> > Featherstone allows for Inverse kinematics for 6dof chains in real
>>>>>> time.
>>>>>> > Allowing animation using objects that physically interact, or for
>>>>>> robotics
>>>>>> > control/ emulation
>>>>>> > On Nov 1, 2013 9:50 AM, "Jacob Merrill" <blueprintrandom1 at gmail.com>
>>>>>> wrote:
>>>>>> >
>>>>>> > > I have been using 6dof solvers to animate, and it works amazing
>>>>>> but it's
>>>>>> > > rather resource intensive, but is dynamic and can be pushed,
>>>>>> yanked etc.
>>>>>> > >
>>>>>> > > http://www.youtube.com/watch?v=s57ipxhXBS4
>>>>>> > > On Nov 1, 2013 9:41 AM, "Mitchell Stokes" <mogurijin at gmail.com>
>>>>>> wrote:
>>>>>> > >
>>>>>> > >> Solving 6dof joint constraints is not a bottleneck (at least in
>>>>>> any BGE
>>>>>> > >> game I've looked at). So, it's not currently worth our time to
>>>>>> spend
>>>>>> > >> development resources speeding it up. That being said, you (or
>>>>>> anyone else)
>>>>>> > >> are more than welcome to create a patch.
>>>>>> > >>
>>>>>>
>>>>>> Just to add we develop a robotic simulator using blender / game engine
>>>>>> (morse.openrobots.org) and we will be really interested by this
>>>>>> feature
>>>>>> to simulate in a smarter way complex armature.
>>>>>>
>>>>>> Best regards,
>>>>>>
>>>>>> --
>>>>>> Arnaud Degroote
>>>>>> Postdoc
>>>>>> RIA LAAS - CNRS
>>>>>>
>>>>>> _______________________________________________
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>>>>>> http://lists.blender.org/mailman/listinfo/bf-gamedev
>>>>>>
>>>>>>
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>>>>
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>>
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>
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