1 Pass Blur

If you need a quick and easy blur filter for your GameMaker Studio 2 project, use this one! It's quite fast and the intensity (radius) is fully adjustable.

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Here's how it works: It samples the texture in a golden-angle spiral, evenly spacing out all samples at any radius. It also uses a hash function to randomize the spiral orientation, making the pattern unnoticeable at lower radii. If you're looking for using a large radius, highly efficient blurring, check out my Dual-Kawase blur. But this is an easy and effective solution that should be adequate for most cases.