BktGlitch is a glitch shader with a variety of unique layered effects that will break your game in the good way.
Please note: If you use GM:S 1.4 on Windows 10, shaders might not work unless you have DirectX 9 installed. I retain all rights to sprites and fonts used in this package.
If you can't buy this or you're simply on a tight budget, message me.
Changed floating-point precision back to high.
Version 1.1.1. Published September 13, 2017
Created with GameMaker: Studio v1.4.1772
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Please post updated version for macOS (see email)
I don't own a Mac myself, sorry, there's no way for me to fix this without knowing what went wrong.
The shader should work on multiple platforms, though, so if the HTML5 demo works for you, your GPU is compatible and this could potentially be a shader compiler issue and thus something YYG has to fix. All I can do is try rewriting it to GLSL instead.
EDIT: Got your message, working on it!
Best Shader Ever
This shader coupled with it's online tool for creating cool effects is the perfect package for your (and my) needs. It delivers more than what I was expecting from it and has offered great flexibility. Setting it up was a breeze and using it with lerp/sine functions for the glitches intensity offers a perfect glitch on top of it.
On top of this, when I ran into issues with the shader on mobile devices Blokatt was responsive and extremely helpful.
Total size 244 KB