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Comment by ww520 | Hacker News Reader

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.

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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.

That's what you do with normals anyway, right?

Normals are specified per-corner-of-poly in OBJ, just like UVs.

.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.

That's a very straightforward extension to add, and if Blender does it, its popularity will ensure everyone else picks it up.

This has been supported in Blender since the dark ages, eg.

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://forums.unrealengine.com/development-discussion/conte...

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