csprite

A simple pixel art editor

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Features

• 🔰 Simple & intuitive
• ⚡ Extremely fast
• 📦 Small (Just ~2 MB)
• 🖥️ Cross-platform
• 💰 Free & open-source

Requirements

• 50MB of Usable RAM
• OpenGL 3.0 or Higher
• Windows, Linux & Mac (for Others See Building From Source)

Download

• You can get csprite from downloads page or you can build it from source from the instructions here

Controls

Key	Description
B	Circle Brush
Shift + B	Square Brush
E	Circle Eraser
Shift + E	Square Eraser
I	Color Picker/Ink Dropper
Plus/Minus	Brush Size Increase/Decrease
Space + Mouse Drag	Pan
Left Mouse	Draw/Erase
Ctrl + Plus / Scroll Up	Zoom In
Ctrl + Minus / Scroll Down	Zoom Out

Contributing

If you would like to help, checkout the guide on contributing

Credits

• The beautiful icon & banner are created "Birds Probably" aka Lilith, Show the bird some love
• Sweetie 16 Palette By GrafxKid.
• Noto Sans Mono UI Font.

Todo

• A Simple UI & Menu
• Support For Windows
• Square/Circle in Brush/Eraser
• Adjustable Brush/Eraser Size
• Undo Redo
• Ink Dropper Tool
• Rectangle Tool
• Line Tool
• Circle Tool
• Configurable Option To Let Choose How Brush/Eye-Dropper Work
  • For Eye Dropper, Users can either select the pixel value in that layer or the composited/blended pixel value
  • For Brush Tool, Users can either replace the pixel on that layer or they can draw and the color will be blended with it.
• Flood/Bucket Fill Tool (https://lodev.org/cgtutor/floodfill.html#Scanline_Floodfill_Algorithm_With_Stack)
• https://lodev.org/cgtutor/painting.html
• Porter Duff's Alpha Functions
• Line Tool (https://lodev.org/cgtutor/lineclipping.html)
• Color Blending
  • Alpha
  • Addition
  • Subtraction
  • Difference
  • Multiply
  • Screen
  • Overlay
  • Darken
  • Lighten
  • Color Dodge/Burn
  • Hard/Soft Light

References/Resources

list of references & resources i used while developing csprite, might be good for learning.

• Simple Alpha-Blending: https://stackoverflow.com/a/68936281/14516016
• Talk/Coding live stream on color blending by TSoding: https://youtu.be/aKnl8-qifvE
• Re-Orderable list in ImGui using Drag & Drop API: ocornut/imgui#1931 (comment)
• LuaJIT in Csprite: https://github.com/pegvin/csprite/tree/luajit
• Compositing and Blending Level 1: https://www.w3.org/TR/compositing-1/

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Thanks