Note for all users: If you are using Gamemaker Studio on STEAM, the folder David linked in the source topic is not the folder you put it in, that's the non steam version. If you are using Gamemaker on steam, the correct location is: C:\Program Files (x86)\Steam\steamapps\common\gamemaker_studio\Shaders in your steam folder for gamemaker. How to copy contents from Shader Files:  Despite the common sense thing to do, you do not copy the actual file itself, you copy what's inside of it.