[UVEditor TIP] UV mapping: Replace your UV Grid Texture

AlanMattano · September 13, 2019, 5:43pm

I’m making a new workflow for game development hard surface modelling using Rhino and having some fun rendering using the default Grid Texture.

This is how the UVEditor was displaying:

Exporting the asset as FBX for painting and selling them in the asset store, I was not expecting this UV space distribution layout: the mapping mesh on the right is out of the [1,1] UV space.

What is happening in Rhino, is that the UVEditor space is showing a UV mapping region and not the UV 0,0 to 1,1 UV space layout. Find number 99 in in the bottom right corner.

To fix this issue(RH-54765), I suggest not to use the default “UV Grid Texture” and replace it instead with something similar to this:

or this

In this way, it will be clear where is the boundary edge of the texture.
If you need to work in a UV mapping space 0-1 you need to be inside this rectangle.

In this video explain why this is important. Often the UV mapping mesh is not inside the 0-1 domain. If we move it looks like is not moving as reported in issue RH-53857. What is actually moving is the grig texture. Having an outline border helps to be aware and understand what is happening.

AlanMattano · September 14, 2019, 12:43am

AM UV v1: 1024 UV mapping grid.

Includes B&W edge limits
Up arrows indication
Circles to better detect uniform scale
Some coordinate
High-density grid

nathanletwory · September 14, 2019, 9:38pm

@Jussi_Aaltonen, @andy - maybe a useful texture to add as a choice while uvmapping?

AlanMattano · September 15, 2019, 12:09am

I will improve it adding numbers and more arrows in it.

AlanMattano · September 16, 2019, 7:16pm

Using a modifu vertion of the original UV Grid Texture:
AM UV v2.0: 2048 Rhino Mod. UV mapping grid texture.

Includes B&W edge limits
Black canvas border
Corner indicator
Up arrows indication
Circles in each square for better proportion detection
Some coordinate
High-density grid
Rhino default numbers.
Four big square regions indication

In the next update, I will try to take out tall numbers

AlanMattano · October 8, 2019, 7:23pm

Using a sharper outline for better contrast and awareness.

VIDEO

TEXTURE

nathanletwory · October 8, 2019, 8:15pm

To ensure this great thread doesn’t get lost: https://mcneel.myjetbrains.com/youtrack/issue/RH-55136

AlanMattano · October 9, 2019, 4:35am

AM UV v3.0
Texture mapping

Resolution: 4K 2K 1K
Outline edge limits
High contrast between grid and outline
Corner indicator
Up fat arrows
Right thin arrows
Small Circles for uniform scale better proportion detection
Big Circles
Rhino default numbers
High-density line grid
Middle lines big square regions indication
Some coordinate

4K

2K

1K

brian · September 1, 2020, 11:36pm

RH-53857 is fixed in the latest WIP

RIL · July 8, 2021, 12:11pm

I wonder if the automated UV-mapping thingy being developed by Eskil Steenberg would be of interest for Rhino?

I thought this work was amazing. In another video Eskil goes into more detail about the process of identifying features on a model (both for freeform and hard egdes).

// Rolf

nathanletwory · July 8, 2021, 5:38pm

Could be interesting. He’s been working on this already for probably two decades already.

Interesting to see he’s started to commercialize his work. I remember when I worked with him on the Verse 3D project when he had his first working versions of this tool. This was back in 2004-2005.

Now that he is transforming it into the ministry of flat it may be worth looking into.

RIL · July 8, 2021, 6:56pm

Quoting the Ministry Of Flat:

h_ttps://www.quelsolaar.com/ministry_of_flat/

BTW, I stumbled on Eskil and his UV-wrapper from watching his take on programming with C in his video “How I program in C”:

Cool guy trying to look at things differently. I like that.

// Rolf