Cineversity

Dear reader,

I am working on my F1 model to get an UV-texture but my mesh is not good enough.
With Mesh Checking I saw 116 Not Planar Polygons. I my UV-edit these polygons are making trouble.
Can you tell me how I can solve this problem?.. and can you tell me what the reason is of a planar polygon…?

See my file at:
https://wetransfer.com/downloads/15009730ab832ae29dbe9ba4db0c701d20200613092800/b8cdd361be3337bdfa70f2f6d223c3db20200613092800/1923d4

Thanks in advance.

Kind Regards,
Michiel van der Velden

Michiel van der Velden,

Typically any more or less organic shape has this kind of non-planar polygons. Think of a sheet of paper where you lift one corner of the paper that is pretty much all it needs to make it non-planar.

After researching WeTransfer, I will add this to my list finally. I have to read through the agreement first so my reply will be delayed. It seems to be the European counterpart to DropBox.

Here is the Help-Manual entry for non-planar polygons:
https://help.maxon.net/us/index.html#OPOLYGON

For the creation of UVs, a new approach is possible in S22.
Your race-car is more organic if it was the same as in your last post a while ago, but I hope the tips here will work:
https://www.cineversity.com/vidplaytut/hard_surface_model_uv_unwrapping_-_unwrapping_complex_objects

The key to work with UVs is to understand that the UV polygons are a translation between the 2D image and the 3D object. Each UV represents a tiny picture-frame, a very flexible one, that is placed on the image. What is inside of that picture-frame will show up in the related 3D polygon. Let me know if that is your idea as well. Thanks.

Tip:
https://www.cineversity.com/vidplaytut/smoothly_reconnect_uv_islands_in_cinema_4d_s22_uv_weld_relax

Cheers

Michiel van der Velden,

If you check again with the ModelingSettings> Mesh Check, you will see that there were two bad polygons. I used the Mesh> Remove> Optimize Tool (cogwheel) with a tolerance of 0.01cm, and they were gone. See the link above about Bad Polygons.

In the UV Editor view, I switched on Overlapping UVs. Editor View Menu (while in UV Edit Interface)> View> Overlapping Polygons.
Overlapping is, by itself, not a problem, sometimes even wanted. What it means is simply that the several “picture-frames” are on top of each other. This will result in similar or even equal picture content in the 3D polygons. Think of a label that should show on both sides of the car, then you can have that only one time in the image. But if the surrounding area of that label should be different, it might be better to have that label twice in the texture-image.

I found some NGons and some extra polygons in the bottom area, I assume they are not needed.

I would suggest two options. One is more in alignment with the organic shape. It splits the main body at the top and bottom. Two UV meshes, and if you use any Carbon Texture, this might look best.
The other one is more box projection oriented and keeps the distortion to a minimum.

You can use both of course to a certain degree, for paint and for the labels the car might have.
The right-sided UV of the Material tag will take over.
https://help.maxon.net/us/index.html#TUVW

Let me know which one you will use if there is a question about labels at all.

The project file, the main body
https://www.amazon.com/clouddrive/share/py7eq8Lpt1gHFyF70IUwOAeR3CYjvgdrTdS2wvbwSzA

I would resolve the Boole and the other parts, to get a pure polygon model, then start texturing.

My best wishes.

P.S.:

Here is a mix of organic and “box”:
Project file[s]
https://www.amazon.com/clouddrive/share/EEHIgWH94DeY0EfYVzR9IPc0VdEbmAM9Mm1ITFYg1Ig
including an alternative.

I hope these three examples in this thread will give you an idea of what might work best for your target. It also showcases that it is an artist call if to go more into the organic or more into a “box”, or something between.

Please let me know if you have any questions, I’m happy to look into it.

Enjoy.