Advanced Member Hammers Posted September 23, 2015 Advanced Member Report Share Posted September 23, 2015 Hi all, I've seen elsewhere that 3D-coat respects smoothing groups. I've been trying to get an .obj from Blender into 3D coat today, but have had not luck as far as the smoothing groups go. Of course in Blender, smoothing groups are set with edge sharpness, but the obj exporter converts these to SGs allegedly. As I'm typing this I thought to try an .fbx import, and that seems to work OK! So presumably there is either a problem with Blender's .obj export, or 3Dcoat's .obj import. For reference here are some images: my model in Blender, my export settings, and the model in 3D coat (obj). Posting my .obj here too in case it warrants investigating. Cheers! RockingHorseModelMerged&Smoothed.obj Quote Link to comment Share on other sites More sharing options...
Moderator Daniel Posted September 23, 2015 Moderator Report Share Posted September 23, 2015 Hi, That's a steps I found on YouTube: Set your face shading to smooth, mark your sharp edges, turn on auto smooth in the Object Data panel under Normals and set the angle (start with 30 degrees and go from there). You should see your smooth mesh with the sharp edges you defined. Then... see pictures. While importing in 3DC don't check Auto smoothing groups! cheers!!! p.s. there is a box to try smoothgrpbox.obj 1 Quote Link to comment Share on other sites More sharing options...
Carlosan Posted September 23, 2015 Report Share Posted September 23, 2015 Edge Split modifier give better result at export Bitflag Smooth groups = on, can help too best result... keep exporting as fbx Quote Link to comment Share on other sites More sharing options...
Advanced Member Hammers Posted September 23, 2015 Author Advanced Member Report Share Posted September 23, 2015 (edited) Thanks for the ideas guys! The obj from B to 3dc was ok if I applied the edge split modifier, but that messed up the topology and I couldn't delete those edges in the UVs. But with .fbx from Blender I inadvertently left "apply modifiers" on, yet it still worked! So I think your last suggestion seems the most sensible Carlosan. @Daniel. I'd never seen that Autosmooth normals option before. Thanks for sharing that too! Edited September 23, 2015 by Hammers Quote Link to comment Share on other sites More sharing options...
Carlosan Posted September 23, 2015 Report Share Posted September 23, 2015 Glad to help right about Daniel tip @Daniel: good tip ! Thanks for sharing that too! Quote Link to comment Share on other sites More sharing options...
Advanced Member Hammers Posted September 23, 2015 Author Advanced Member Report Share Posted September 23, 2015 Just a follow up note on that, the autosmooth left at 180º just picked up the sharp edges, and seemed more discriminating than the edge split mod. This actually helped me find a couple of bad internal faces that were causing shading problems. I tried exporting fbx without the modifier, and the edges came through without a hitch. I set the export to smooth 'normals only', not sure if that matters or not. Anyway, I think I'll be using autosmooth a lot more from now on 1 Quote Link to comment Share on other sites More sharing options...
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