Member TestUserTorsten Posted June 22, 2009 Member Report Share Posted June 22, 2009 Hi, I try the demo version of 3d Coat right now. I have several files (.obj) with 3d data. They belong to a single data set. I need to do some heavy surface work on them, and I think that the voxel sculpting in 3d coat is really cool and helping me a lot! BUT If I save the files in .obj (or .lwo) and open them in 3d coat, some of them are not in the right position anymore. That is, if I import two or three into the same space, they are not e.g. in parallel to each other anymore, but they are merged into each other. Probably they are centroid at 0,0,0. If I just open the single files with 3d coat and save them as .obj again, and import them into modo again, they are merged there too! So, this is not really helpful... I mean, 3d coat is nice to sculpture the surface of my really difficult surfaces, but afterwards they don't fit well to each other anymore. Just imagine a 3d skeleton and a 3d blood vessel from one person, not aligned well anymore... Does not look that well, right? So, is it possible to get the old .obj coordinates back???? Quote Link to comment Share on other sites More sharing options...
Contributor Tony Nemo Posted June 22, 2009 Contributor Report Share Posted June 22, 2009 Hi,I try the demo version of 3d Coat right now. I have several files (.obj) with 3d data. They belong to a single data set. I need to do some heavy surface work on them, and I think that the voxel sculpting in 3d coat is really cool and helping me a lot! BUT If I save the files in .obj (or .lwo) and open them in 3d coat, some of them are not in the right position anymore. That is, if I import two or three into the same space, they are not e.g. in parallel to each other anymore, but they are merged into each other. Probably they are centroid at 0,0,0. If I just open the single files with 3d coat and save them as .obj again, and import them into modo again, they are merged there too! So, this is not really helpful... I mean, 3d coat is nice to sculpture the surface of my really difficult surfaces, but afterwards they don't fit well to each other anymore. Just imagine a 3d skeleton and a 3d blood vessel from one person, not aligned well anymore... Does not look that well, right? So, is it possible to get the old .obj coordinates back???? I sure hope so. Otherwise, you have a nasty glitch in app2app. Quote Link to comment Share on other sites More sharing options...
Member TestUserTorsten Posted June 22, 2009 Author Member Report Share Posted June 22, 2009 I add a picture to show what I mean: It is a simple example: I created a cube with modo, saved it as .obj, imported it into 3d coat, saved it again as .obj. Then I opend it with modo again. As you can see: the coordinates are changed... Quote Link to comment Share on other sites More sharing options...
Advanced Member Roger_K Posted June 23, 2009 Advanced Member Report Share Posted June 23, 2009 I add a picture to show what I mean:It is a simple example: I created a cube with modo, saved it as .obj, imported it into 3d coat, saved it again as .obj. Then I opend it with modo again. As you can see: the coordinates are changed... I looks like 3DC is exporting based on the models COG rather than the origin. You could force it to work by manually defining the scene bounds so it is centered on [0,0,0]. if you for instance created 4 boxes and placed them as if they were the corner verts of a cube in your scene and merged them into 1 object. Center their pivot to their object center and then zero their pivot to the origin. no so long your object is within the bound of the 4 cubes and the 4 cube volume is centered it should work its a hack but it might get you out of a fix. Quote Link to comment Share on other sites More sharing options...
Member TestUserTorsten Posted June 23, 2009 Author Member Report Share Posted June 23, 2009 its a hack but it might get you out of a fix. I'll try it!!! Quote Link to comment Share on other sites More sharing options...
Member TestUserTorsten Posted June 23, 2009 Author Member Report Share Posted June 23, 2009 I tried it - I put two large, thin boxes at the sides of the structures and - 3d coat crashed! The file(s) got too big! The number of polygones skyrocked even more... "Fatal error - you should increase the amount of memory..." Well, I will try it again tomorrow. Quote Link to comment Share on other sites More sharing options...
Member TestUserTorsten Posted June 24, 2009 Author Member Report Share Posted June 24, 2009 OK, I tried it again. And, in principle it works, but: the scale is changed dramatically! If I open all files in modo, the original ones as well as the ones imported into 3d coat, I "cannot see" the original ones anymore... That is, they are so small compared to the others, that I have to zoom in heavily to see them. Or, better to say, I have to zoom out a lot to see the modified versions... A structure 1 m in length originally will be 120 m in length after the processing in 3d coat... Quote Link to comment Share on other sites More sharing options...
Advanced Member Roger_K Posted June 24, 2009 Advanced Member Report Share Posted June 24, 2009 can you set the import/Export scales to remedy this? also there is no need to have full boxes. a single triagle will do. that will reduce the counts significantly Quote Link to comment Share on other sites More sharing options...
Member TestUserTorsten Posted June 26, 2009 Author Member Report Share Posted June 26, 2009 a single triagle will do. Yes, that's right, and it works - but it is not really easy to align these structures within 3D coat, but in modo it is ok... Quote Link to comment Share on other sites More sharing options...
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