Format .3ds export --> Quad or Tris poyligon?

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  06 June 2013
Format .3ds export --> Quad or Tris poyligon?

Hi everybody!

I've modeled into 3ds max a simple chair model. It is a full Quad Mesh based model, only quad polygon in it.

I've exported the model using the .3ds format.

Once re-imported into 3ds max it appears like the original quad model, but if I import it into another softwrae (for example Rhinoceros) it appears like Tris model and all quad polygons are divided into 2 tris polygons.

I'd like to understand... the .3ds export only in tris? And 3dsmax "hides" them, or other software that receive the 3ds decides to tris it?

Thanks a lot.
  06 June 2013
3ds is a tri-format. There were only triangle meshes in 3DS DOS which is what that format is for. Max knows to hide the hidden edges. Other software is unlikely to know what to do with those.

Can't you use .OBJ or another format that supports quads?
  06 June 2013
Sure, obj will solve any kind of problem, but in this particular case I need the .3ds and I want to be sure about "3ds=tris".

Thanks a lot Robin

3dsmax not only recognize tris and hide the edge, but it also not consider it, in the way that it's posible to work with loops and rings.
  06 June 2013
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