Thanks, Min Rui. That's interesting, would you mind if I quote your reply into that discussion in the Blender bug tracker? If it is indeed the fault of the Blender importer I should point it out. :)
DAN On Mon, Jun 11, 2012 at 6:56 AM, Min Rui Tan <[email protected]>wrote: > Do you have actual scene files that you have problems with? > > If Blender only supports name="X|Y|Z", then it might be their(or > OpenCollada's) limitation. > For <sampler> elements in COLLADA, you can see from the specs page 136, > the param name should not matter. > The X and Y values should be processed from the INPUT and OUTPUT semantics > rather than whatever the name attribute is. > > -Min Rui > > From: [email protected] [mailto: > [email protected]] On Behalf Of Dan Yargici > Sent: Saturday, June 09, 2012 12:33 AM > To: [email protected] > Subject: Softimage exports invalid Collada files? > > So after much head scratching concerning the Collada importer in Blender, > I stumbled across this bug report by Thomas Volkmann. > > > http://projects.blender.org/tracker/?group_id=9&atid=498&func=detail&aid=31089 > > It would seem the issue actually lies with Softimage/Crosswalk.... > > It would be great if there were an option to export safer, more basic, > 'vanilla' collada files in the exporter IMO. Half the time you just want > to transfer a camera and some geometry... > > The relevant quote: > > The collada-output generated by softimage seems to violate the Collada > 1.4.1 specifications: > > According to the collada specifications from > http://www.khronos.org/files/collada_spec_1_4.pdf (see page 3-7) : > > The common <param> (core) name attribute for animation translations may > contain a <param> with name="X|Y|Z" wich specify the 3 cartesian > coordinates. > > Blender uses name="X|Y|Z" according to the specifications: > > <animation> > <source> > <technique_common> > <accessor> > <param name="X|Y|Z" /> > </accessor> > </technique_common> > </source> > </animation> > > Softimage uses name="VALUE" for all 3 coordinates: > > <animation> > <source> > <technique_common> > <accessor> > <param name="VALUE" /> > </accessor> > </technique_common> > </source> > </animation> > > thus the most important information (which coordinate shall we use) has > been corrupted. > > However i believe that softimage has added a lot of <extra> information > enclosed in <technique profile="XSI"> and it looks very much like the true > animation data is provided in this extra datablock. I guess that Blender > does not support the XSI profile ? > > ==== > > Proof : > > 1.) I have modified the softimage dae file by replacing the 3 occurances > of name="VALUE" by name="X", name="Y" and name="Z" respectively. this > imports into blener and the animation is intact. > > 2.) I have tried to import the original collada file from softimage into > meshlab. That failed. > > 3.) have tried to iport the original collada file from Blender into > meshlab. That worked. >
