So clarify for me: Can the AC3D exporter actually export double-sided geometry?
From a technical standpoint, it seems to me that double-sided essentially doubles the polygon count at various points in the pipeline, depending on how they're done (doubles the memory footprint in all cases, if the model file actually holds the outside facing faces, also doubles the non-volatire storage req'd). From a practical standpoint, I think I'd rather simply flag a polygon as double-sided and let the rendering software deal with it by doubling the polygons, etc, rather than having to create a duplicate of the object I want double-sided and reversing the normals on. While this is very simple to do (and I actually tried it before the suggestion was made, and it worked), I really disliked having a seperate named object that I had to deal with, particularly when trying to do things like scaling, rotations, selections, and other single object operations. More objects/seperate meshes means more opportunities to screw something up or lose track of something important. From a modeller's standpoint, simplicity is more practical. I'd almost accept doubled model file sizes over having more named objects (which if they're duplicates, would almost double the size of each modeled object anyway.) Just my opinion and a RFC (Request For Clarification ;) I know the exporter script is actually not FG so it's probably pointless complaint (unless someone wants to suggest to the author of the script to allow the option of changing some default behaviours) JD Frederic Bouvier wrote: >Frederic Bouvier a écrit : > > >>Robicd a écrit : >> >> >> >>>Charalampos Alexopoulos wrote: >>> >>> >>> >>> >>>>I am newbie to Blender so maybe i dont understund correct the issue, but i >>>>think what you are looking for is in the "UV fase select" mode then in >>>>"Texture face" tab is a "Twoside" button which did what you ask for. >>>> >>>> >>>> >>>> >>>Thank you pal, your answer is nice but maybe out of context. I am not >>>talking about UV textures at all :-) >>> >>>I am concerned with basic colored faces which could be rendered as one >>>or two-sided. It looks like the Blender developers don't like people >>>customizing their geometry with one-sided faces, so they choose to use a >>>default two-sided attribute, that's a pity because many people like to >>>work that way. >>> >>> >>> >>> >>You shouldn't deny people advice : >>http://blenderartists.org/forum/showthread?t=11461 >> >>Just tried. The Double Sided button in the Mesh panel just don't work. A >>print instruction in the ac3d export python file just show it. >> >>The TwoSided button in the Texture Face panel that appears in "Face >>Select" mode do its job just as the ac3d exporter does. >>You don't need to apply a texture to the face. The drawback is that >>every face should be selected individually because only the face with >>the colored border is actually changed. >> >> >> > >I should correct myself : > >The Copy DrawMode works perfectly, so after having changed the active >face, you can propagate the mode to all selected faces. > >The Double Sided button in the Mesh panel may work. It is just not used >by the exporter because the AC3D format specify a 2Side attribute for >each face, so it uses the one available in the "Face Select" mode. > >-Fred > > > _______________________________________________ Flightgear-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/flightgear-users
