[Opensim-dev] Megaregions

[Oren Hurvitz]

Thanks, I will.

Oren

On Sat, Sep 5, 2015 at 8:33 PM, Diva Canto <diva at metaverseink.com> wrote:

> Oren, Ubit submitted a patch that makes ODE support varregions. It's been
> pushed. Initial tests show that it works fine, but please check that it
> works in your environments.
>
>
> On 9/4/2015 10:36 PM, Oren Hurvitz wrote:
>
> Strong -1.
>
> Varregions don't support ODE, therefore megaregions must remain.
>
> It's important to keep support for ODE because it has significant benefits
> over BulletSim:
>
> Most importantly, ODE has consistently good performance, whereas BulletSim
> sometimes gets into pathological states where it consumes extremely high
> CPU and makes every avatar in the simulator freeze in place. I reported
> this bug here:  <http://opensimulator.org/mantis/view.php?id=6789#c26617>
> http://opensimulator.org/mantis/view.php?id=6789#c26617 , but it's still
> happening (I checked again last month). This is a huge problem and it's the
> reason Kitely still uses ODE as the default physics engine. (We provide
> BulletSim as an option, but we warn users against using it.)
>
> Second, BulletSim has some strange behavior that ODE doesn't. E.g., in
> BulletSim my avatar can walk vertically up some large prims! That doesn't
> happen with ODE.
>
> Third, some users prefer ODE's behavior, and they have many scripts that
> are fine-tuned for ODE. Switching to BulletSim would kill their scripts.
>
> If Varregions supported ODE then it would be ok to eliminate megaregions.
> But until that happens, megaregions are important and need to remain.
>
> Oren
>
>
> On Sat, Sep 5, 2015 at 2:35 AM, Diva Canto <diva at metaverseink.com> wrote:
>
>> Yeah, don't worry, there's no rush. We'll wait for people's input.
>> Eventually support for megaregions will be dropped. The question is whether
>> to drop it on the next release or wait a few more months.
>>
>>
>> On 9/4/2015 4:29 PM, Nicky Perian wrote:
>>
>> Diva,
>> I don't have any technical input but, I don't think a complete input
>> cannot be provided by posting this at the beginning of a 3 day holiday
>> weekend in the US. Hopefully, a decision will not be made over this
>> weekend.
>> Nicky
>>
>> On Fri, Sep 4, 2015 at 5:34 PM, R.Gunther < <rigun at rigutech.nl>
>> rigun at rigutech.nl> wrote:
>>
>>> Yes, am fine with it when it get removed. it's not good.
>>> But i expect some people that get sad because the still say megaregions
>>> work betetr and use that.
>>>
>>> But Kill it ! :)
>>>
>>>
>>> On 2015-09-05 00:29, Trinity wrote:
>>>
>>> KILL IT! KILL IT WITH FIRE!
>>>
>>> Trinity93
>>>
>>> On Fri, Sep 4, 2015 at 5:00 PM, Diva Canto < <diva at metaverseink.com>
>>> diva at metaverseink.com> wrote:
>>>
>>>> Hi everyone,
>>>>
>>>> We're cleaning up a few things in the code, and came across
>>>> megaregions. Now that we have varregions, there is a strong will among core
>>>> devs to remove support for megaregions, because they were just a temporary
>>>> hack for when viewers didn't understand spaces greater than 256m. Now that
>>>> they do, the hack seems unnecessary moving forward. Megaregions
>>>> implementation is contrived and makes a lot code unnecessarily complicated.
>>>>
>>>> Any objections to its removal?
>>>>
>>>> Diva
>>>> _______________________________________________
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>>>>
>>>
>>>
>>>
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>>
>>
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>
>
> --
> Oren Hurvitz
> VP R&D
> Kitely Ltd.
>
> Email: orenh at kitely.com
>
>
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-- 
Oren Hurvitz
VP R&D
Kitely Ltd.

Email: orenh at kitely.com <ilan at kitely.com>
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