> > >If you can get hold of the dm > >(DerivedMesh) > >on the c side of things then I can show you how to get the correct normals > >and tangents > >and even help you get them welded should you want this. >
Ok! Sounds good to me :) So right now I in progress of checkout latest svn sources and compile blender. (had problems with net) Then first of I'll try to create test version of python/C interface. I've not decided yet what names I'll use for it. And finally will be trying to implement it looking in DerivedMesh.c, I think that it's realy are a good example. If or when I have a problem, I'll be glad to use your help :) Many thanks for your kind cooperation! On Tue, Nov 15, 2011 at 10:41 PM, Morten Mikkelsen <mikkels...@gmail.com>wrote: > I don't know anything about Python but if you can get hold of the dm > (DerivedMesh) > on the c side of things then I can show you how to get the correct normals > and tangents > and even help you get them welded should you want this. > > > > > On Tue, Nov 15, 2011 at 10:43 AM, Eugene Minov <minov....@gmail.com> > wrote: > > > Yes, I absolutely agree, hard faces obviously must be exported in the > same > > way how they seen in render. > > I think they can welds along with tangents. > > > > On Tue, Nov 15, 2011 at 9:01 PM, Morten Mikkelsen <mikkels...@gmail.com > > >wrote: > > > > > There is no point in doing this unless you export the correct tangents > > and > > > normals. That is the ones > > > that were used to bake the normal map. > > > > > > I realize it blows that there is no API function to get the render > > normal. > > > So what you have to do is produce it yourself > > > like is done in > > > DerivedMesh.c< > > > > > > https://svn.blender.org/svnroot/bf-blender/trunk/blender/source/blender/blenkernel/intern/DerivedMesh.c > > > > > > > and > > > many other places as well. > > > An example in this file is the static function GetNormal() which is > used > > as > > > a call-back function by mikktspace.c > > > and you can see how it uses the averaged normal if the face is set to > > > smooth and it uses > > > the face normal which it calculates itself if the face is set to flat. > > > > > > If you are going to make an api to export tangents I for one cannot > > > emphasize enough > > > that I prefer an all or nothing solution. Either do it right or don't > do > > it > > > at all. > > > The last thing we need is to introduce a new tangent space standard > > within > > > blender. > > > Either export the correct basis that was used for baking (this includes > > the > > > normal) > > > or don't try to do it at all. > > > _______________________________________________ > > > Bf-committers mailing list > > > Bf-committers@blender.org > > > http://lists.blender.org/mailman/listinfo/bf-committers > > > > > _______________________________________________ > > Bf-committers mailing list > > Bf-committers@blender.org > > http://lists.blender.org/mailman/listinfo/bf-committers > > > _______________________________________________ > Bf-committers mailing list > Bf-committers@blender.org > http://lists.blender.org/mailman/listinfo/bf-committers > _______________________________________________ Bf-committers mailing list Bf-committers@blender.org http://lists.blender.org/mailman/listinfo/bf-committers