[Soc-2009-dev] Reports + Midterms + Blendernation

Sebastian sebastian at opencollada.org
Thu Jul 2 08:04:01 CEST 2009


I must admit that i was too lazy to search the existing code base ;) 
scanfill is the better solution.

Sebastian



joe wrote:
> Eh please don't use GLU.  We have our own tesselation library, no need
> for a glu dependancy.
> 
> Jow
> 
> On Sun, Jun 28, 2009 at 1:47 PM, Sebastian<sebastian at opencollada.org> wrote:
>> Hi Arystan,
>>
>> those samples rely on a GLU implementation. You might find the sources
>> of those within the reference implementation by SGI or the MESA3D libraries.
>>
>> The code has not been changed during the last nine years and i have no
>> experience with it.
>>
>> http://oss.sgi.com/cgi-bin/cvsweb.cgi/projects/ogl-sample/main/gfx/lib/glu/libtess/
>> http://cgit.freedesktop.org/mesa/mesa/tree/src/glu/sgi/libtess
>> http://cgit.freedesktop.org/mesa/mesa/tree/src/glu/mesa
>>
>> It is probably sufficient for the seldom case where COLLADA contains
>> complex polygons. You probably get triangulated data most of the time...
>> Use it ;)
>>
>> Sebastian
>>
>>
>> Arystan Dyussenov wrote:
>>> Hi, Sebastian,
>>>
>>> What do you think about this approach:
>>> http://www.songho.ca/opengl/gl_tessellation.html?
>>>
>>> It seems optimal to me. Since some parts of Blender are already using
>>> GLU, it doesn't create additional dependencies.
>>>
>>> Arystan
>>>
>>> On Fri, Jun 26, 2009 at 10:46 PM, Sebastian <sebastian at opencollada.org
>>> <mailto:sebastian at opencollada.org>> wrote:
>>>
>>>     Chingiz,
>>>
>>>      > Does anyone have an idea how to import polygons with more than 4
>>>      > vertices? Currently the importer simply ignores such polygons.
>>>
>>>     That's a non-trivial task especially when your polygon includes holes,
>>>     too ;)
>>>
>>>     http://www.vterrain.org/Implementation/Libs/triangulate.html lists some
>>>     of the available algorithms. Internally we are using FIST, an
>>>     alternative would be to figure out the corresponding parts from
>>>     OpenCascade.
>>>
>>>     Sebastian
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>>>
>>>
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