Union Bytes Painter

Pixel art designing tool
  • Applications
  • Oct 16, 2022
  • Achim Menzel


Union Bytes Painter is a pixel art designing tool written in Godot and C# and similar to common applications such as Substance Painter. Union Bytes Painter allows the creation of 2D sprite and textures with color, normal, height, roughness, and metallic maps. Sprites and textures can be edited using multi-channel mode in the 2D or 3D space. Further tools like filters and baking can be used to finalize your artwork with details like space ambient occlusion.

Early Access

Please keep in mind, this software is currently in "Early Access". This means, there can be bugs, crashes, performance problems and missing features! Please buy this software only, if you are aware the current state of Union Bytes Painter! For feature requests and bug reports please contact us on ed.setybnoinu@troppus.


Free Demo (early access, Windows) (v0.626; October 16, 2022)

Free Demo (early access, Linux) (v0.626; October 16, 2022)

This software is provided "AS IS". Achim Menzel is NOT responsible for any damage attributed to this software. You are warned that you use this software at your own risk. No warranties are implied or given by Achim Menzel.

In this demo it is not possible to save your project, but it contains all other features. Please test it on your system before purchasing, to check the performance and find out it suits for your purpose or not.

System requirements:

  • Windows 64 bit
  • Min. 8 GB RAM
  • Dedicated graphics card with OpenGL 3.3 or later
  • Microsoft .NET Framework 4.7.2 or later
  • CPU with min. 4 cores / 4 threads

Related Links

What is Union Bytes Painter NOT!

  • It is no substitution for Substance Painter or Blender
  • It is not suitable for high resolution textures (texture limit is 512 px × 512 px)
  • It is no model editor


Pixel painting in 2D and 3D space

It is possible to draw in texture space or directly on the 3D model.

Physical based rendering texture maps

The editor supports all PBR texture channels: color map, normal map, height map, roughness map, and metallic map.

Layer support

The entire scene can be edited in various layers, each with its individual blending mode.

Multi channel editing in real‑time

Draw on all PBR textures at the same time, to get feedback immediately.

Real-time preview in Godot engine

Because the tool is made with GODOT you get a realistic preview of your materials in the engine

Normal map generation

Automatic generation of normal maps from height maps, in different modes: Sobel, Prewitt, Cross, Godot.

Preview post processing

Adjustable post processing effects in the 3D preview.

Texture filters

Apply noise, color correction, blur or texture space ambient occlusion on textures.

Texture baking

Baking of masks from position, normals, ambient occlusion, and thickness.

Stamp tool

It is possible to draw masks and other project files as decal onto all texture channels.

UV Editing

Editing and adjustment of the UV Layout.


Brush, Line, Rectangle, Circle, Bucket Stamp

Import & Export

Import of obj files. Export as obj, png, jpg.