Automatically run Futhark code to generate and display an image. Every time the Futhark file is saved, it will be recompiled, run, and displayed as image output.

This is similar to Shadertoy, but using Futhark and OpenCL instead of GLSL and WebGL.

Write a shader file in Futhark, containing an entry-point main : [y][x][3]u8, which outputs a 3D array of y-pixels * x-pixels * rgb colour.

entry main : [256][512][3]u8 =
  map (\y ->
         (map (\x ->
                 [u8.i32 (x / 2), u8.i32 y, 0])
              (iota 512)))
      (iota 256)

python3 liveshader.py input.fut

This will output compiler output to the terminal, and open a window displaying the image. Whenever the source file is changed, it will recompile and redisplay the image.

• Futhark
• OpenCL
• python3
  • pyopencl
  • pyinotify
  • numpy
  • matplotlib

This project is licenced under the GNU GPLv3.

Contributions are welcomed and appreciated.

When submitting a pull request, you must ensure that all code is either owned by you, or is licened under a GPLv3-compatible licence and you have followed the terms of the licence (including any necessary attribution). By submitting a pull request, you consent for any code owned by you to be licenced under the GNU GPLv3.

If you are unsure of any licencing details, please submit the pull requst but indicate that the licencing is not complete, so we can work out the details.