This vfx video tutorial shows you how to create the grayscale effect with a shader in GameMaker Studio 2 the easy way. This does work similar also with lower versions of GameMaker.
The idea is quite simple, you want to desaturize your image so that you only have a grayscale image left.
How can this be done?
You take the current color and transform it with the shader into a grayscale “color”. Colors without saturation have one thing in common which is that they have all the same red, green, blue values. We use this knowledge to add all those 3 together and divide them by 3 to get an average. This average we use to create the new color. And that is pretty much it. Magic, with no real effort 😀
0:00 Intro of the effect to do
0:58 Subscribe
1:13 Quick setup
2:12 Concept explained
3:32 Setting up the shader
6:00 Optional: Make a shader that applies to the whole screen
11:30 Game shown: Blade Assault
Special guest in the video + thumb: Valeria The Pagan Priestess
https://www.youtube.com/channel/UC–BuvjesA39JuN4cZ5gxug
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