Almost all shader editors comes with their own, not always good IDE. But what if you are, similar to me want to stick with your favorite code editor. This standalone shader-viewer allows you to preview 2D shaders, hot-reload them and save animations. It is intendend for those who don't use any engines, therefore it doesn't provide 3D shapes for BSDF debugging, just single viewplane for generative textures. I'm not interested in game making, my primarily target it's a motion design for POS.
premake5 gmake2
cd build
make config=release
cd ..
In order to compile this thing, you need standard SDL2, glew, opengl. Currently only Windows supported, but it's easy to change system specific code, there is very small amount of it. To run with mouse and keybord input type ...
shader-view -i -x 400,600 -f test.frag
To record 4 seconds of 24 fps animation ...
shader-view -a 24,4 -x 400,600 -f test.frag -o anim/frame_name
output files will be named frame_name_1.png frame_name_2.png e.t.c
| option | meaning |
|---|---|
| -h | help |
| -a fps,dur | record N frames |
| -x W,H | size of the window |
| -f file | fragment shader |
| -o file | animation output |
Keyboard bindings
| key | function |
|---|---|
| a | absolute value |
| i | 1 - value |
| r | red channel |
| g | g channel |
| b | b channel |
| c | color picker |
| t | toggle timer |
Press right mouse button to show information about pixel, this information also copied to clipboard as a color vec4(R, G, B, 1.0).
Working examples can be found in the test*.frag respectively, more to come.
Sometimes it's less expensive to perform computation on per-component basis, rather than per-pixel. You can create compute-fragment pipelines using special files with .comp extension. For example of such file look at test3.comp, just pass it instead of .frag with -f option.