Shader Editor
This month's featured contribution comes from Dico and is a wysiwyg shader editor. It's a quick way of testing and combining various shaders, fog, and so on by simply dragging a few sliders.
I have created a quick demo that shows the tool in action; simply run main.c to start the project, and then click the green arrows in the upper right corner to show the options menu. Contrast isn't working at the moment, but (hopefully) Dico will fix that in a future version of his tool.
The chosen options will be saved on exit, so the scene will be loaded with the last settings whenever you start the demo.
Thank you for the great contribution, Dico!