Hi benoit, 1. there's a uv_textures property for MeshTexturePolys, but no uv-coordinates in there. Rather looks here:
http://www.blender.org/documentation/blender_python_api_2_62_1/bpy.types.Mesh.html?highlight=uv_loop_layers#bpy.types.Mesh.uv_loop_layers http://www.blender.org/documentation/blender_python_api_2_62_1/bpy.types.MeshUVLoop.html#bpy.types.MeshUVLoop >>> for uv_loop in bpy.data.objects['Cube'].data.uv_loop_layers.active.data: ... uv_loop.uv ... Vector((0.0, 0.33435294032096863)) Vector((0.3323138952255249, 0.33333343267440796)) Vector((0.3333333730697632, 0.6656473278999329)) If you wanna export triangles and quads, use tessface_uv_textures (behaves like the former uv_textures): >>> bpy.data.objects['Cube'].data.update(calc_tessface=1) >>> for face_uv in bpy.data.objects['Cube'].data.tessface_uv_textures.active.data: ... for vert_uv in face_uv.uv: ... list(vert_uv) ... [0.0, 0.33435294032096863] [0.3323138952255249, 0.33333343267440796] [0.3333333730697632, 0.6656473278999329] 2. No, 'cause you don't need such a check. Tessfaces aren't triangulated meshes, but triangles and quads. So you should always use tessfaces for your exporter. Default cube: >>> for f in bpy.data.objects['Cube'].data.tessfaces: ... list(f.vertices) ... [0, 1, 2, 3] [4, 7, 6, 5] [0, 4, 5, 1] [1, 5, 6, 2] [2, 6, 7, 3] [4, 0, 3, 7] the faces refer to 4 vertices each, 4 verts = quad. Regards, Cody Am 30.03.2012 08:01, schrieb [email protected]: > Hi, > thank you for this usefull document. > > I'm currently upgrading my Exporter to 2.63 and I have 2 questions. I would be > gratefull if someone could help. > > 1) I cannot find the UV information on the MeshTexturePoly. Where should be > the UV > information when using NGons (Mesh.polygons). > > 2) The 3DEngine supports Tris and Quads, and is performant with quad. > So my plan is to first iterate on all Ngons of the Mesh. > If max NGons are<=4, I would use Mesh.polygons to export Tris and Quads > If max NGons are>4, I would use Mesh.tessfaces to export tesslated Tris. > Is it a good strategy ? > > > Regards, > Benoit Muller > >> Message du 23/03/12 02:41 >> De : "Campbell Barton" >> A : "Blender Foundation Python list" >> Copie à : >> Objet : [Bf-python] BMesh upgrade docs& api info >> >> Hi List, its been a while since I posted to the list on bmesh python >> api progress and related issues. >> >> Firstly, I've added a section to our docs which gives some info on how >> to upgrade scripts as well as some of the differences between the 3 >> ways to access faces now. >> >> > http://www.blender.org/documentation/blender_python_api_2_62_2/info_gotcha.html#ngons- > and-tessellation-faces >> >> One breaking change is that mesh.faces is now called mesh.tessfaces, >> this is so scripts dont fail silently, either you want to use tessface >> data - which is a now a polygon cache now and should not be edited >> since the changes wont apply back to the original mesh or you want to >> use tessfaces for exporting, >> >> --- >> >> And a brief update on bmesh docs... >> Added examples and more descriptions to main BMesh module page >> * http://www.blender.org/documentation/blender_python_api_2_62_2/bmesh.html >> >> The types are better arranges (were hard to follow before) >> * www.blender.org/documentation/blender_python_api_2_62_2/bmesh.types.html >> >> Added customdata access (works different to all our previous mesh api's) >> * > http://www.blender.org/documentation/blender_python_api_2_62_2/bmesh.html#customdata- > access >> >> Meshes that are not in editmode can now be converted to/from bmesh see >> BMesh from_object, from_mesh, to_mesh. >> >> Added select_history access. >> * > http://www.blender.org/documentation/blender_python_api_2_62_2/bmesh.types.html#bmesh. > types.BMEditSelSeq >> >> -- >> - Campbell >> _______________________________________________ >> Bf-python mailing list >> [email protected] >> http://lists.blender.org/mailman/listinfo/bf-python >> > > Une messagerie gratuite, garantie à vie et des services en plus, ça vous > tente ? > Je crée ma boîte mail www.laposte.net > _______________________________________________ > Bf-python mailing list > [email protected] > http://lists.blender.org/mailman/listinfo/bf-python _______________________________________________ Bf-python mailing list [email protected] http://lists.blender.org/mailman/listinfo/bf-python
