Sketchup to 3dcoat problems

[oaken]

I'm new sorry if this is wrong section. I apologize. When I import my sketchup models (exported as obj) into 3dcoat, UV Map Mesh and Paint UV Mapped Mesh it adds faces to my models with are not in the model. I uploaded the image to show off how it is adding new faces and also overlapping faces. What am I doing wrong? I started off with the most simplest of geometry and I'm having nothing but problems with them in 3dcoat

Anyone who uses 3dcoat and sketchup I would really appreciate your time and help. I hope someone can help me fix this issue. Thank you all

[oaken]

See how its completely closing in my stairs and covering it?

[Carlosan]

Hi

On your original, if you ‘select all’ in the group and use ‘Intersect with Selection’ it then becomes a solid

[philnolan3d]

I don't use sketchup but it looks like a graphics card glitch we see in LightWave sometimes with ngons or 4-point triangles. In that case we can fix it by adding a cut to the geometry or making it all triangles (tripling it).

[oaken]

my models look fine in 3ds max and blender. is it basically its useless to use sketchup and 3dcoat? If such simple geometry is having problems in 3dcoat from sketchup I'm not sure I want to even invest my time in more complex projects. By making it all triangles do you mean cutting a square in two?

 

is this what u mean by triangulate?

 

 

 

[philnolan3d]

That looks like it should work fine.

Edit: Actually I wonder about that wall next to the steps but you could try it.
 

[-rb-]

Hi - I use SkUp and 3D Coat quite a bit, and can't replicate that problem (for some reason over here). A few workflow tips I've counted on:

- Making sure when you export from SkUp, use obj or fbx (fbx is usually the best bet as there are less phong issues)

- Make sure your normals are all correct as faces will disappear in 3D Coat (as 3D C won't show back faces)

- Do some research on how 3D Coat scales your models on import, scale can become an issue with faces. 3D Coat has a mildly insane units system that prioritises voxel density over ease-of-use (scene needs about a 100 vox / unit density)...In order to get from 3D Coat to to Houdini or Octane Standalone (that use a m scene scale) I use cm out of SketchUp, 3D Coat m as units, Voxels Per Unit 100, Units Scale 1, Scene Scale 1. It's a real head-scratcher at times, and if you haven't got your head around it, you definitely should. 

- Have 'Triangulate all faces' checked, 'Export two-sided faces' unchecked.

- Manage your workflow to not include many groups or components (this is actually a big problem, making 3DC and SketchUp not great bedfellows - you'll have to do a lot of exploding)...3D Coat will import each of these on a layer, and on larger models with thousands of groups this will crush 3D Coat when you try and import. My work-around for this is taking into Houdini and stripping the obj group attributes off, but that may be a bit too advanced. 

Hope some of that helped...

 

- Rich

Edited December 12, 2020 by -rb-

[kenmo]

Sketchup models are very messy and do not import well into the 3D apps I have even when exported from Sketchup Make as an DAE or OBJ via a Sketchup add-on.

Blender has a SKP addon that works very well.

PconPlanner was recommend on the DAZ3D forums and imports SKP models and can be exported to a few 3D file formats including OBJ, FBX & STL and without some of the issues other 3D apps have. Best of all it's FREE

https://pcon-planner.com/en/

Cheers

Ken