[Fluxus] libode internal error 2

[evan.raskob [lists]]

no, I got it working!
I was right the 1st time about the ode flag - I just hadn't  
completely removed all the scons tmp files.
I will commit the fix - just simply requires the -DdSINGLE flag to be  
passed during compile time in the SConfig





On Jan 6, 2010, at 1:07 PM, evan.raskob [lists] wrote:

> no, scratch that - this would require major changes to fluxus,  
> changing basically every datatype to double from float.
>
> not sure how to fix this, except to create a variant using single- 
> precision maths on OS X.  otherwise, any attempt to use libode will  
> result in garbage numbers being passed in.
>
> what do you guys think?
>
>
> -evan
>
>
> On Jan 6, 2010, at 12:56 PM, evan.raskob [lists] wrote:
>
>> no, I see - by default, libode is double-precision on OS X.  you  
>> can't just use the compiler flag to switch it to use single- 
>> precision.
>>
>> this is actually a pain, but fixable - all bounding boxes and  
>> physics functions will need to use doubles instead of floats.  I  
>> started doing this, but I'm not exactly sure of all implications,  
>> because the physics bounding box relies on the Primitive- 
>> >GetBoundingBox() function.
>>
>> I might try it out and see...
>>
>> cheers
>> evan
>>
>>
>>
>> On Jan 6, 2010, at 12:52 PM, evan.raskob [lists] wrote:
>>
>>> The problem is single vs. double precision - by default it is set  
>>> to double on OS X.
>>> I'm working on a fix, think it's just a matter of adding compiler  
>>> flag -dSINGLE
>>>
>>> let you know in a sec if it works
>>>
>>> On Jan 6, 2010, at 12:01 PM, gabor papp wrote:
>>>
>>>>> I can't reproduce this with ode 0.11.1 - is there a particular  
>>>>> command
>>>>> which crashes? I've ran self-test, collide-seq.scm and
>>>>> physics-joints.scm ok.
>>>> on osx i tried ode 0.11.1 with this script:
>>>>
>>>> (define b (build-cube))
>>>> (active-box b)
>>>>
>>>> got the following crash:
>>>>
>>>> ODE Message 2: mass must be > 0 in dMassCheck() File mass.cpp  
>>>> Line 49
>>>>
>>>> ODE Message 2: mass must be > 0 in dMassCheck() File mass.cpp  
>>>> Line 49
>>>>
>>>> ODE Message 2: mass must be > 0 in dMassCheck() File mass.cpp  
>>>> Line 49
>>>>
>>>> ODE INTERNAL ERROR 1: assertion "dMassCheck(mass)" failed in  
>>>> dBodySetMass() [ode.cpp]
>>>> Abort trap
>>>>
>>>> best,
>>>> gabor
>>>
>>> Evan Raskob
>>> ML Studio
>>> 4-8 Arcola Street
>>> London E8 2DJ
>>> United Kingdom
>>>
>>> http://mlstudio.co.uk
>>> http://pixelist.info
>>>
>>
>> Evan Raskob
>> ML Studio
>> 4-8 Arcola Street
>> London E8 2DJ
>> United Kingdom
>>
>> http://mlstudio.co.uk
>> http://pixelist.info
>>
>
> Evan Raskob
> ML Studio
> 4-8 Arcola Street
> London E8 2DJ
> United Kingdom
>
> http://mlstudio.co.uk
> http://pixelist.info
>

Evan Raskob
ML Studio
4-8 Arcola Street
London E8 2DJ
United Kingdom

http://mlstudio.co.uk
http://pixelist.info