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

[Sebastian]

patch attached ;) not tested yet.
sebastian


Chingiz Dyussenov wrote:
> 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 
> <mailto: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>
>      > <mailto: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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