Paint Mode: Brush Radius VS Brush Size #98676

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Juanfran Matheu · 2022-06-08T17:22:50+02:00

Juanfran Matheu commented

2022-06-08 17:22:50 +02:00

This is a brief task design to explain why Blender should switch brush radius to brush size and how this change will benefit artists.

I will start introducing the issues that texture paint mode have currently by using brush radius:

1. Makes impossible to paint single pixels.

As minimum brush radius is 1px (integer values), minimum brush size is 2px, so it's impossible to use current brushes to paint single pixels as for pixel art styles.

2. Spectrum of brush size values cut by half.

Current brush radius makes it impossible for artist to paint with an odd number brush size/diameter.
This likely cut the values by half as artists can't paint with a brush with sizes of 1, 3, 5, 7, 9, 11, and so on...
That's a silly limitation for artists when we have an easy solution of moving to brush size/diameter.

3. Contra-intuitive.

Brush size/diameter gives artists better feedback on the real size of the brush over the texture space while they don't have to think in brush radius * 2.

Brush size is a standard over brush radius but not because it is driven by big companies but because it is the most intuitive for artists while radius may be more intuitive for mathematicians and programmers, so I think we should invest into improving UX for the end-user, specially in texture paint mode that lacks a lot of it.

This is a brief task design to explain **why Blender should switch brush radius to brush size** and how this change will benefit artists. I will start introducing the **issues that texture paint mode have currently by using brush radius:** **1. Makes impossible to paint single pixels.** - As minimum brush radius is 1px (integer values), **minimum brush size is 2px**, so it's **impossible** to use current brushes **to paint single pixels as for pixel art** styles. **2. Spectrum of brush size values cut by half.** - Current brush radius makes it **impossible** for artist **to paint with an odd number brush size**/diameter. - This likely **cut the values by half** as artists can't paint with a brush with sizes of 1, 3, 5, 7, 9, 11, and so on... That's a silly limitation for artists when we have an easy solution of moving to brush size/diameter. **3. Contra-intuitive.** - **Brush size**/diameter **gives artists better feedback on the real size of the brush** over the texture space while they don't have to think in brush radius * 2. Brush size is a standard over brush radius but not because it is driven by big companies but because it is the most intuitive for artists while radius may be more intuitive for mathematicians and programmers, so I think we should invest into improving UX for the end-user, specially in texture paint mode that lacks a lot of it.

👍 3

Juanfran Matheu self-assigned this 2022-06-08 17:22:50 +02:00

Juanfran Matheu commented

2022-06-08 17:22:50 +02:00

Added subscribers: @jfmatheu, @JulienKaspar

Richard Antalik commented

2022-06-08 20:25:09 +02:00

Added subscriber: @iss

Richard Antalik commented

2022-06-08 20:25:09 +02:00

Is this something that is agreed on along developers? If so then please confirm the task and add design / TODO subtype. I have almost closed this as feature request before checking author.

Andy Cuccaro commented

2022-06-13 15:21:59 +02:00

Added subscriber: @AndyCuccaro

Ramil Roosileht commented

2022-06-14 07:07:50 +02:00

Added subscriber: @Limarest

Ramil Roosileht commented

2022-06-14 07:07:50 +02:00

I think it's a nice change. Only question I have is should we compensate for the changes in brush size with this patch by changing default settings? We did have a task to update those on the workboard

Alexey Adamitsky commented

2022-06-24 08:40:01 +02:00

Added subscriber: @AlexeyAdamitsky

Julien Kaspar commented

2022-06-28 15:11:09 +02:00

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

Julien Kaspar commented

2022-06-28 15:11:09 +02:00

To me this sounds reasonable. I agree that the brush defaults need to be adjusted to fit this change. But most users probably wouldn't even notice a difference, while pixel art can be better supported.

❤️ 1

Julien Kaspar added this to the Sculpt, Paint & Texture project 2023-02-08 10:20:48 +01:00

Philipp Oeser removed the

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Paint Mode: Brush Radius VS Brush Size #98676