[Solved] 3DCoat Autoretopology doesnt produce a mesh

[ZephyrSouza]

Been trying all night to get this Autoretopo to work. Ive followed tutorials and Im doing nothing different. When the mesh finishes retpologizing I just get this. 

https://gyazo.com/8ceae1baacdac46f8104539bde0c6aad

No polygons or anything. Ive tried resizing, adjusting the base mesh, saving it in different names. OBJ or FBX nothing seems to work. I go through all the steps of assigning the flow of geometry and nothing happens. Anyone have any tips?

Thank you.

[Carlosan]

Hi !

Are you using the latest v 4.7.26 ?

Please check if scene scale values are correct before any process.

 

[ZephyrSouza]

Hiya,

Im on version of  4.1.04A right now.

I have used retopo before so im not if its just my software or the mesh. It does seem to be the software though. 

Ill go with a update and see if that helps. thank you

[Carlosan]

You can have dual installation of both version.

Remember this please:
- Do NOT use beta builds in production if build is not marked as [STABLE].
- Keep backups of scenes, presets and materials.

What's New in 3D-Coat 4.7

[ZephyrSouza]

Okay did a reinstall and im on the latest stable version.

Step 1: Paint for higher density and lay out my edgeflow.

https://gyazo.com/5acbcca47c4082b171df92f8922935f3

Step 2: Let it generate the mesh

https://gyazo.com/1fd4b5233618f6045d9e92c57a926faa

Step 3: No mesh

https://gyazo.com/5a119f9bcc116d47aa219c80c3c9be4a

 

[Carlosan]

And the Scene Scale values are 0.0.0-1...

can you share the model or your autoretopo settings please ?

[ZephyrSouza]

Yes they are.

Scene: https://gyazo.com/4fb862d1a8159f9c0d759c0c3c45a0d4

Settings: https://gyazo.com/e04e04fec839c30fafa3a2d92e64d228

Paint: https://gyazo.com/6cf89b5dfa86c36b875ae1b3e968078a

Flow: https://gyazo.com/7158897f2dbd12ef4e55eb67f389e904

[Carlosan]

Try this settings please

[ZephyrSouza]

Settings: https://gyazo.com/4487355e5bb6a4a8667cedea220a5da7

Result: https://gyazo.com/9ab7112b43ee925a44de11ad8f1aab1f

Not as clean as id like but were getting places

Why did that work in comparrison to my settings?

[AbnRanger]

I haven't looked at your scene, but oftentimes users will try to generate a super low-poly mesh and auto-retopo can fail when you try to force it to create a mesh without enough polygons. It is NOT a "make cool, optimized game mesh" tool. The polygons are evenly distributed, and thus require a higher poly count than you might expect.

 

[ZephyrSouza]

31 minutes ago, AbnRanger said:

I haven't looked at your scene, but oftentimes users will try to generate a super low-poly mesh and auto-retopo can fail when you try to force it to create a mesh without enough polygons. It is NOT a "make cool, optimized game mesh" tool. The polygons are evenly distributed, and thus require a higher poly count than you might expect.

 

I understand that but the mesh it generated wouldnt be useful in any case lol. What are some good settings you think?

[digman]

Generally but not all the time it is good to run autopo in voxel mode. Depends upon how clean the mesh is.

Surface Mode ( real polygons) If you have any self intersections or interior holes in the mesh this will cause autopo routine to fail, get poor results or not create anything. 

Voxel mode- If you have interiors voids, the same results listed above.

If you know your surface mode model is clean, then it is fine to run the autopo routine.

I generally run autopo in voxel mode as AbnRanger is doing in his video. You can smooth out the model as the fine details are not needed for autopo, in fact it works better. The panel also will decimate but starting with a smoother model does not hurt. 

-----------------------------------------------------------------------------

Now to the part of how to remove voids in a voxel model. 

Right click on the model or the voxel layer where your model is located and choose " fill voids" If you see the routine filling holes then you know there were some... On the viewport screen your are informed by number of the voids that are being filled.

You can also run "fill invisible hulls" I only tend to run that if I still am having problems.

For this 3DC default model I used the settings shown. I did not paint density or use guide flow strokes. Settings are always depended upon the structure of the model. I did set the auto-density a little high but this is just to demostrate.

If you are in surface mode and even use the voxelize before quadrangulation, this will not fix interior voids.

In the retopo room before running autopo turn off virtual mirror mode under the retopo room as well.

Edited March 15, 2017 by digman

[ZephyrSouza]

Wow thank you for taking the time to write that up, I appreciate it

I will be sure to go and try more before I ask anymore questions.

Currently im playing around with it and getting much better results. 

[digman]

And if you did not catch my correction,  I meant to say turn off Virtual Symmetry before running the Autopo.  I also removed these words. "but when you bake to the paint room"  I did correct my original post. 

LOL, I even corrected one word here... Typing is ahead of my brain... 

Edited March 15, 2017 by digman