first: Prefab is dev and maintained by an old french guy: So funcky english is tolerated! I'll update the message with "not valid" as I do not think "invalid" is correct either no?
Now the message translation: of 42 uv's objects tested, Prefab found 20 where either : 1/ no uv definition was found, Prefab would then generate new ones, if there are no neighbour faces found on 3 sides of the "not valid" face that the app could use the restore the missing uv data, default values u/v 0/1, 0/.5, 1/0 are set. In most cases, especially with Sketchup, no uv's were found and default is applied. 2/ you have uv's out of range either higher than 1 or lower than 0. Often found from generators where repeat is standard in buildin uv editors or map projectors. 3/ uv's are defined but values are NaN's. Some exporters are either having errors or totally mess up uvs, such as .3ds or .ase exports from AC3D for instance. That's why it looks weird once loaded. Because the mapping you have defined is totally wrong. > would it be best to avoid SketchUp and simply use Prefab for all 3D editing > functions There is no modeling feature yet in Prefab. Which would be indeed very handy for this kind of cases and beyond... Pitty you cannot see yet what runs on my screen atm ;) When it comes to uv edits, sure Prefab's editor should do the trick. Fabrice On Jan 8, 2011, at 10:26 PM, Brian Bosak wrote: > ?Hi. I am trying to load a DAE file from SketchUp and am getting UV errors > when attempting to open the file in Prefab. If I load it directly through > Away3D using one of the loader classes, it simply fails with an exception. In > Prefab, the following message appears: > "The model loaded holds defect or unvalid information (why isn't it invalid?) > in its geometry definition. Some of the data was repaired but uvmapping being > probably ruined you should correct this model in a 3D editor..." > "20 invalid UV definition was found during the parsing of 42 UV's objects. > Default uv's were applied to avoid possible crashes in this application" > The model did show up with incorrect UV mapping, making my brick building > look really strange, and it doesn't appear that BSP mapping works correctly > either.... > If I create 3D models in Blender, those load OK, but models from SketchUp > don't seem to load correctly. Even extremely simple models such as basic > blocks. With this many problems (no offense intended to any developers; I > know how hard it must be to make such a wonderful 3D engine. Other 3D engines > for Flash, and even desktop 3D engines such as XNA have similar problems. > Away3D seems to support a lot more formats than other engines); would it be > best to avoid SketchUp and simply use Prefab for all 3D editing functions?
