I’m thinking about an interim solution/activity, like adding 2d building foot prints to osm, generated from our 3d models.Ībout Collada: SketchUp say they have the industry’s most complete implementation (93+%) and considering that, the intercompatibility with other applications is really bad. A comparable infrastructure does not yet exist for osm, so what could modelers do now (and see results?). If we imagine Google would revive geomodeling, everyone would hear about it and modelers would not hesitate because of Google’s big brand and the familiar upload process. However there is the before mentioned chicken-egg problem: Now that so much time passed, I am not sure how many modelers I can reach and persuade. I also plan to invite as many modelers as possible (I closely know the top ~80, and then there were 1000+ modelers whose work I know by sight). I will definitely provide all of my own models for free use if it can help make osm 3d happen (some are already to openbuildingmodels, , ). Especially it doesn’t feature the extensible nature of Collada/XML: We need a way to store “anchor points” and “direction vectors” or something like that to integrate the models in our apps.Īnyways, I’m open minded to everything except VRML I’d prefer something that’s expressive enough for nice models, open enough to be “platform independant” and free enough to not require any license fees or something like that textures) and it has some other shortcomings. It doesn’t support multi textures, it has some glitches how it’s interpreted (esp. On the other hand I have some experience with OBJ. Iit’s the format SketchUp supports And by its XML nature it’s easy to extend, e.g. Its main porpose was to have a file format that can be used to exchange 3d models between apps. I had the impression that it’s well specified and was thought to make a end to the mess with 3d file formats. I read the collada spec and the reason it was invented. Hm, I can not comment on that as a professional, however, I’ll add my humble opinion
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