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godot-texture-painter

(★ 197)

A GPU-accelerated texture painter written in Godot 3.0

파일 탐색기

최종 버전 다운로드 (.zip)

- - mat_suz.material
  - Suzanne.mesh
  - suzanne_uv.dae
  - suzanne_uv.dae.import
  - torus.dae
  - torus.dae.import
  - Torus.mesh
- - brush_gradient.tres
  - brush_preview_shader.shader
  - brush_preview_shader.tres
  - depth_buffer_shader.shader
  - depth_buffer_shader.tres
  - paint_shader.shader
  - paint_shader.tres
  - seamfixer_shader.shader
  - seamfixer_shader.tres
- - logo.svg
  - logo.svg.import
- - default_theme.tres
- - Textures.gd
  - Textures.tscn
- Dialogs.gd
- ImageOps.gd
- PainterState.gd
- SaveManager.cs
- .gdignore
- demo.gif
- tree.png
- tree.png.import
- AssemblyInfo.cs
- - MainView.gd
  - MainView.tscn
- - InputStates.gd
  - Viewport.gd
  - Viewport.tscn
.gitignore
default_env.tres
icon.png
icon.png.import
icon.svg
icon.svg.import
LICENSE
packages.config
project.godot
README.md
Texture Painter.csproj
Texture Painter.sln

# 설치 가이드

1. 코드 내려받기

git clone https://github.com/Bauxitedev/godot-texture-painter

깃허브에서 프로젝트 코드 전체를 내 컴퓨터로 내려받습니다.

cd godot-texture-painter

방금 내려받은 프로젝트 폴더 안으로 이동합니다.

2. .NET

보통 추천

사전 준비물

Git GitHub에서 프로젝트 코드를 내려받으려면 필요합니다.
.NET SDK dotnet 명령어를 쓰기 위한 SDK입니다.

dotnet restore

프로젝트에 필요한 패키지를 내려받습니다.

dotnet run

프로젝트를 빌드하고 바로 실행합니다.

✅ dotnet run 실행 후 터미널에 나타나는 안내 메시지나 주소를 확인하세요.

// repository documentation

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# Godot Texture Painter

This is a prototype for a PBR texture painter in Godot 3.0. It's meant to be mostly a proof-of-concept, to show that it's possible at all - but I might turn it into a full blown application one day (but no promises!).

![Paint](https://raw.githubusercontent.com/Bauxitedev/godot-texture-painter/master/images/demo.gif)

The painting algorithm is GPU-accelerated, so you can paint on extremely large textures with huge brushes on very high poly models without lag.

You can paint albedo, roughness, metalness and emission. Also, you can right click to place decals, and use the slider on the top right to change the brush softness. Other controls are displayed on the GUI.

[Here's a video of it in action.](https://www.youtube.com/watch?v=nbG_XAxmIlA)

***Note: requires Godot 3.1.1 Mono edition. Older versions probably won't work.***

# How it works

The program works using two kinds of textures: `mesh` and `paint` textures. They are organized in the scene tree like this:

![Tree](https://raw.githubusercontent.com/Bauxitedev/godot-texture-painter/master/images/tree.png)

Mesh textures store information about triangle position and normal on a per-pixel basis, which is used as input for the paint shader to do GPU accelerated painting. This already reveals a fundamental limitation of the algorithm, though: since a texture can store only one value per pixel, a texel can only be at 1 point in space at the same time. As such, the algorithm only works for models that have non-overlapping UVs (so every texel appears exactly once on the model).

Paint textures store the actual texture you see on the model, and it is generated by mixing the output from the paint shader with the previous frame. There are 4 of them: albedo, roughness, metalness and emission. I might make a 5th one, for painting normals, although that will be a little more difficult to implement.

# Limitations/Known Issues
- You can only paint on models that have non-overlapping UVs.