My GLSL shaders playground

Mandelbrot set movement controls

Keyboard

1. Arrow keys (←, →, ↑, and ↓) for moving around
2. Z and X for zooming in and zooming out
3. R to reset everything to the starting point
4. Hold Alt to slow down movement and zooming and hold Shift to speed it up

Mouse

1. Drag and Drop (click left mouse button and hold while moving the cursor)
2. Zoom by scrolling the mouse wheel

How to run

I didn’t try and/or test it outside NixOS but technically if you install following dependencies you can just run make run and it should work for you:

1. GCC
2. GNU Make
3. pkg-config
4. xxd executable
5. GLFW3
6. GLEW
7. General OpenGL C header files

With Nix

Either you enter a Nix Shell and run make commands:

nix-shell --run 'make run'

Or you can build the derivation and run it:

nix-build
result/bin/app

You can pre-build Nix development environment (to add a GC root and prevent it from being garbage collected unless you remove the result* symlink):

nix-build -A env -o result-env

Known issues

GNU/Make doesn’t recognize changes in *.glsl source files for some reason. So if you just change a shader without cleaning the cache you actually get previous result. I usually use touch src/main.cpp && make run as a hack to not clean the whole cache. Or you can use this hack for automatically recompile and run when you save any change in a shader file:

while true; do inotifywait -e create src/shaders/** ; touch src/main.cpp && make run; done

Author

Viacheslav Lotsmanov