This feature has been merged with Add Shader freature
Could we get ability to write 2D shaders for our GD games? It would add multitude of cool effects to our games.
For less-experienced users visual shader editor could be made (similar to event system), with preview, but that would be more of a long-term goal as it probably wouldn’t be easy to write it so it would be as powerful as using GLSL directly, yet easy to use for people that are using GD.