Dynamic grid, texel size and pixel resolution #78389

New Issue

Daniel Bystedt · 2020-06-28T20:18:40+02:00

Daniel Bystedt commented

2020-06-28 20:18:40 +02:00

UI

{F8651863, height = 300}
UI Example UI from UV-editor

This design is related to
https://developer.blender.org/T78391

Settings in the uv editor for the following:

Dynamic grid size

How many units in UV-space is a grid unit. It can be handy with a dynamic grid size. Sometimes you need to snap to a texture atlas that is divided into a 6x6 grid within a 0-1 uv space. Note: The UV 0-1 space is always static (eg the true UV unit length is always the same).


Dynamic grid = 4 (4 grids per UV unit)	Dynamic grid = 2 (2 grids per UV unit)

Texel size:

How many units in uv space one unit in 3d space represents. This can be used to get consistent texture scale when using tiling textures.
Texel size should affect unwrap, but not packing since we usually want to pack into a specific area.

Sample texel size

Add operator for “Sample texel size, which sets texel size from selected object(s) in 3d view

Pixel resolution:

How big is a pixel in uv space when no image is assigned in the uv editor. This can be used for UV move up/down/left/right (described in other UV editing design).

{F8651868, height = 300}	{F8651871, height = 300}
1 unit in 3d = 0.5 units in UV space (i.e Texel size = 0.5)	Texel size = 0.5 (i.e edge length = orig length * Texel size

{F8651875, height = 300}}
The goal is to get consistent texture scale between objects and faces when unwrapping. The Texel size acts as a scale multiplier to the unwrapped uv’s

**UI** |{[F8651863](https://archive.blender.org/developer/F8651863/image.png), height = 300}| | -- | |UI Example UI from UV-editor| This design is related to https://developer.blender.org/T78391 **Settings in the uv editor for the following:** **Dynamic grid size** - How many units in UV-space is a grid unit. It can be handy with a dynamic grid size. Sometimes you need to snap to a texture atlas that is divided into a 6x6 grid within a 0-1 uv space. Note: The UV 0-1 space is always static (eg the true UV unit length is always the same). |![image.png](https://archive.blender.org/developer/F8651928/image.png) |![image.png](https://archive.blender.org/developer/F8651931/image.png) | | -- | -- | |Dynamic grid = 4 (4 grids per UV unit) | Dynamic grid = 2 (2 grids per UV unit)| **Texel size:** - How many units in uv space one unit in 3d space represents. This can be used to get consistent texture scale when using tiling textures. - Texel size should affect unwrap, but not packing since we usually want to pack into a specific area. **Sample texel size** - Add operator for “Sample texel size, which sets texel size from selected object(s) in 3d view **Pixel resolution:** - How big is a pixel in uv space when no image is assigned in the uv editor. This can be used for UV move up/down/left/right (described in other UV editing design). | {[F8651868](https://archive.blender.org/developer/F8651868/image.png), height = 300}|{[F8651871](https://archive.blender.org/developer/F8651871/image.png), height = 300} | | -- | -- | |1 unit in 3d = 0.5 units in UV space (i.e Texel size = 0.5)| Texel size = 0.5 (i.e edge length = orig length * Texel size| |{[F8651875](https://archive.blender.org/developer/F8651875/image.png), height = 300}} | | -- | |The goal is to get consistent texture scale between objects and faces when unwrapping. The Texel size acts as a scale multiplier to the unwrapped uv’s|

Daniel Bystedt commented

2020-06-28 20:18:40 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'