Apr 22, 2026, 3:25:42 AM
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Sweet Home 3D Forum » List all forums » » Forum: Developers » » » Thread: Modeller 3D plugin » » » » Post: Re: Modeller 3D plugin |
Print at Apr 22, 2026, 3:25:42 AM |
| Posted by Keet at Apr 13, 2026, 10:05:36 PM |
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Re: Modeller 3D plugin Z value is displayed in the Y field Indeed, in *.obj files, UP is Yhttps://cs418.cs.illinois.edu/website/text/obj.html 3.1 Orientation It is common to find OBJ where • +z is up and +y is forward • +y is up and −z is forward • +y is up and +z is forward Other orientations are also possible. There is no easy way to tell what orientation a given file has except by having a user to look at the data rendered in one orientation and say "that’s not right." Both Sweet Home 3D and Blender handle .obj files with the order X,Z,Y, the most common used order. the first value is interpreted as X, the second value as the vertical value (Z, up), and the third value as Y, when you import a .obj file. There's a reason why you can change the orientation of a model when you import it in Sweet Home 3D: it allows you to correct a "wrong" order of the coordinates in the .obj file. This doesn't matter to the user, he sees a vertical blue line for Z and expects to see the connected value in the blue Z field. Most furniture models have an elevation 0, i.e. "the grid is the floor". I understand why you center around 0, but if you implement panning the grid in a future version you can do as Sweet Home 3D does: convert so the lowest Z value is 0. (You removed the post but I thought I would explain anyway) ---------------------------------------- Dodecagon.nl 1300+ 3D models, manuals, and projects |
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