[Soc-2009-dev] Weekly report - Collada module

[Chingiz Dyussenov]

Hi, Sebastian,

I've got a problem. I can't create <bind_vertex_input> in
<instance_material> with OpenCollada. I need this to make the connection
between the <texture>’s texcoord attribute and the mesh’s texture coordinate
array.

Chingiz

On Tue, Jun 9, 2009 at 10:32 PM, Sebastian <sebastian at opencollada.org>wrote:

> Hi Arystan,
>
> thanks a lot for the bug report! We precompiled the regular expressions
> by intention to remove dependency to "pcre_compile" and to speed up
> overall processing time. I must admit that this sounds a little bit like
> an overkill but the code generation for XSD Schema automatically
> generates the statements.
>
> We have to check why the precompiled statements failed :(
>
> Sebastian
>
>
> Arystan Dyussenov wrote:
> > Hi, Sebastian,
> >
> > I'm Arystan, Chingiz's elder brother. I'm helping him a bit with
> > OpenCollada studying. Recently we've stumbled upon a bug in OpenCollada.
> >
> > The following code resulted in an empty URL on his Intel Celeron:
> >
> > COLLADABU::URI(COLLADABU::Utils::EMPTY_STRING, "#id")
> >
> > On my AMD Athlon 64 however it worked ok. We're both using Linux.
> > Debugging revealed that regexp matcher didn't accept a correct URI
> > ("#something") on his computer. The problem turned out to be in compiled
> > regexps.
> >
> > I'm attaching the diff of the fix, regexps are now compiled on runtime
> > only once on demand. Although correctness of regexps needs to be checked.
> >
> > Arystan
> >
> > On Sun, May 24, 2009 at 10:40 PM, Sebastian <sebastian at opencollada.org
> > <mailto:sebastian at opencollada.org>> wrote:
> >
> >     Great to hear about that! The most complete examples are the 3ds Max
> and
> >     Maya converters itself, though they might be difficult in some areas
> as
> >     they use the specific max/maya APIs, too.
> >
> >     I already started (in my spare time) a native c++ Importer/Exporter
> for
> >     Blender. I liked the performance of the native VRML/STL/DXF
> >     importer/exporter that are available at
> >
> https://svn.blender.org/svnroot/bf-blender/trunk/blender/source/blender/blenkernel/intern/exotic.c
> >
> >     They fit in perfectly while implementing a sax based importer or a
> >     stream based exporter.
> >
> >     If you have any specific questions don't hesitate to contact me, i'm
> >     happy to support you.
> >
> >     Sebastian
> >
> >
> >     Chingiz Dyussenov wrote:
> >      > Thanks, Sebastian.
> >      >
> >      > I am interested. I was just going to start coding, so switching to
> >      > OpenCollada is ok. I'll use Ogre example to learn how to do
> >     things with
> >      > OpenCollada. If there are other free examples, please share.
> >      >
> >      > Chingiz
> >      >
> >      >
> >      >
> >
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