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That's great news. Glad to see Blender keep moving forward. One thing I wish they would add is to export the color information along with the vertices in the

by ww520 6y ago

That's great news. Glad to see Blender keep moving forward. One thing I wish they would add is to export the color information along with the vertices in the Wavefront OBJ file when exporting an model.

bootloop 6y ago
.obj files don't hold any material information. When you check "Write Materials" in the obj-exporter properties (should be enabled by default) it will also export the materials to a separate .mtl file and reference them in the .obj file. Edit: see also here: https://en.wikipedia.org/wiki/Wavefront_.obj_file#Material_template_library https://en.wikipedia.org/wiki/Wavefront_.obj_file#Material_t...
- ur-whale 6y ago
  That's a very straightforward extension to add, and if Blender does it, its popularity will ensure everyone else picks it up.
  - nineteen999 6y ago
    This has been supported in Blender since the dark ages, eg. https://blenderartists.org/t/objs-and-mtls-how-do-you-work-with-them/408372 https://blenderartists.org/t/objs-and-mtls-how-do-you-work-w... Most artists don't really seem to work with OBJ anymore anyway, it's an ancient format. I only use it when working in conjunction with ZBrush. Most people have moved onto FBX (especially for rigged meshes) and glTF is the new format that supports way way more: https://www.youtube.com/watch?v=6IWKWT_2_Ls https://www.youtube.com/watch?v=6IWKWT_2_Ls https://forums.unrealengine.com/development-discussion/content-creation/1415582-the-new-gltf-import-supported-in-4-19-preview-is-awesome-experimentation https://forums.unrealengine.com/development-discussion/conte...
edflsafoiewq 6y ago
There is an "extension" to .obj where vertex colors are added to the v line, like v x y z r g b But this stores a color per-vertex. Vertex colors in Blender, like UVs, are per-corner-of-poly. The ideal way to store vertex color information in .obj would really be vc r g b p v1/vt1/vn1/vc1 ... As it is, exporting per-vertex colors would require splitting a vertex into multiple vertices, one per distinct vertex color that it uses.
- cultureulterior 6y ago
  That's what you do with normals anyway, right?
  - edflsafoiewq 6y ago
    Normals are specified per-corner-of-poly in OBJ, just like UVs.

by ww520 6y ago

bootloop 6y ago

.obj files don't hold any material information. When you check "Write Materials" in the obj-exporter properties (should be enabled by default) it will also export the materials to a separate .mtl file and reference them in the .obj file. Edit: see also here: https://en.wikipedia.org/wiki/Wavefront_.obj_file#Material_template_library https://en.wikipedia.org/wiki/Wavefront_.obj_file#Material_t...

ur-whale 6y ago
That's a very straightforward extension to add, and if Blender does it, its popularity will ensure everyone else picks it up.
- nineteen999 6y ago
  This has been supported in Blender since the dark ages, eg. https://blenderartists.org/t/objs-and-mtls-how-do-you-work-with-them/408372 https://blenderartists.org/t/objs-and-mtls-how-do-you-work-w... Most artists don't really seem to work with OBJ anymore anyway, it's an ancient format. I only use it when working in conjunction with ZBrush. Most people have moved onto FBX (especially for rigged meshes) and glTF is the new format that supports way way more: https://www.youtube.com/watch?v=6IWKWT_2_Ls https://www.youtube.com/watch?v=6IWKWT_2_Ls https://forums.unrealengine.com/development-discussion/content-creation/1415582-the-new-gltf-import-supported-in-4-19-preview-is-awesome-experimentation https://forums.unrealengine.com/development-discussion/conte...

edflsafoiewq 6y ago

There is an "extension" to .obj where vertex colors are added to the v line, like v x y z r g b But this stores a color per-vertex. Vertex colors in Blender, like UVs, are per-corner-of-poly. The ideal way to store vertex color information in .obj would really be vc r g b p v1/vt1/vn1/vc1 ... As it is, exporting per-vertex colors would require splitting a vertex into multiple vertices, one per distinct vertex color that it uses.

cultureulterior 6y ago
That's what you do with normals anyway, right?
- edflsafoiewq 6y ago
  Normals are specified per-corner-of-poly in OBJ, just like UVs.