Re: [ggt-devel] Submissions of patches for the GMTL

[Patrick H. <pat...@gm...>]

Sebastian,

Now would be a good time to start the discussion and post patches. If you want to discuss changes that were already committed, that is fine too.

That said, I can't promise that I will have a lot of good feedback. I maintain GMTL mainly because someone has to, not because I am a math superstar. If you can point me at references supporting your ideas, that would help me.

 -Patrick

On Apr 30, 2012, at 3:19 AM, Sebastian Messerschmidt wrote:

> Hi Patrick, 
> 
> Yes the changes are indeed in the trunk.
> So the things left are the proposals which I didn't directly submit in order to discuss them first. 
> Do you think that we'll find the time soon?
> 
> 
>> Hi Patrick,
>> 
>> I've submitted the patches and some posted some questions and proposals in March 2011. 
>> 
>> No I didn't check the trunk, as there was never a reply to the submissions (and some changes really needed discussion I think).
>> The patches included:
>> - Sphere-Sphere intersection
>> - double sided tri-linesegment intersection
>> - a fix in the lineseg-aabb intersection (which was not evaluating correctly for linesegments inside the box or only leaving it IIRC)
>> - closest point to triangle function
>> 
>> I also proposed changes regarding some important points:
>> - epsilon value clarification in setRot (which was skipping small rotations in case of close vectors). The epsilon value should be dependent on the type)
>> - inconsistent interfaces for intersectXXX functions that should all report "numhits" with a consistent type (in order to allow those values inside own templates)
>> - meta programming matrix initialization (effectively making the NxN matrix intialisation nested loops one SSE operation) 
>> 
>> If you want me to, I can create patches against the trunk version and we might open the discussion about the remaining issues again.
>> I really like to see GMTL improved and made future-proof as I simply didn't find anything on the internet that is fast and supports all primitives I need.
>> 
>> Cheers 
>> Sebastian
>> 
>> 
>>> Sebastian,
>>> 
>>> How long ago did you submit your patches? I was confused and thought that an update made to an old bug report a could of weeks ago was the submission to which you were referring. It looks to me like I was getting ready to release GMTL 0.7.0 with patches that you submitted, but I never finished the release. I have no idea what happened, but GMTL tends to be pretty far off my radar most weeks.
>>> 
>>> Have you looked at the SVN trunk to see if it includes your changes? If so, I will just tag and release GMTL 0.7.0. Note that the SVN trunk requires the use of SCons 2.0 or newer.
>>> 
>>>  -Patrick
>>> 
>>> On Apr 23, 2012, at 3:06 AM, Sebastian Messerschmidt wrote:
>>> 
>>>> Hello,
>>>> 
>>>> I've submitted a bunch of patches a while ago.
>>>> Did anyone have the chance to look into them?
>>>> 
>>>> I'm currently remerging my changes against the 0.6.1 version of GMTL and 
>>>> have a strong interest in some of the changes to be added to GMTL.
>>>> 
>>>> cheers
>>>> Sebastian
>>>> 
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Patrick Hartling
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